TY  - CONF
AU  - Vasilić, Željko
AU  - Stanić, Miloš
AU  - Ivetić, Damjan
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3225
AB  - Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije sistema (eng. Resilience Index) i 2) prosečan pritisak u zonama. Nakon identifikacije osnovnih zona bilansiranja, pažljivo odmerenim intervencijama na njihovim granicama u cilju dodatne redukcije pritiska se može uticati na potencijalno smanjenje gubitaka u mreži. Rezultati testiranja metodologije na realnom primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije i izboru mera za smanjenje gubitaka.
PB  - Savez inženjera i tehničara Srbije
C3  - II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023
T1  - Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3225
ER  - 

@conference{
author = "Vasilić, Željko and Stanić, Miloš and Ivetić, Damjan",
year = "2023",
abstract = "Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije sistema (eng. Resilience Index) i 2) prosečan pritisak u zonama. Nakon identifikacije osnovnih zona bilansiranja, pažljivo odmerenim intervencijama na njihovim granicama u cilju dodatne redukcije pritiska se može uticati na potencijalno smanjenje gubitaka u mreži. Rezultati testiranja metodologije na realnom primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije i izboru mera za smanjenje gubitaka.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023",
title = "Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3225"
}

Vasilić, Ž., Stanić, M.,& Ivetić, D.. (2023). Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka. in II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023
Savez inženjera i tehničara Srbije..
https://hdl.handle.net/21.15107/rcub_grafar_3225

Vasilić Ž, Stanić M, Ivetić D. Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka. in II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3225 .

Vasilić, Željko, Stanić, Miloš, Ivetić, Damjan, "Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka" in II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023 (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3225 .

TY  - CONF
AU  - Ivetić, Damjan
AU  - Ljubičić, Robert
AU  - Milašinović, Miloš
AU  - Prodanović, Dušan
AU  - Pavlović, Dragutin
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3222
AB  - Jedan od preduslova za efikasno upravljanje i strateško planiranje razvoja kanalizacionih sistema je dobro poznavanje dinamike rada mreže. Ključnu ulogu imaju mereni podaci, prvenstveno o promenama protoka i nivoa, kako u sušnom tako i u kišnom period. Nažalost, kanalizacione mreže su u većini slučajeva slabo pokrivene adekvatnim mernim mestima. Tako prilikom planiranja kapitalnih investicija, npr. postrojenja za prečišćavanje otpadnih voda, nedostajući podaci se obezbeđuju kroz merne kampanje. Ključni izazovi pri sprovođenju mernih kampanja su povezani sa lokacijski i hidraulički nepovoljnim mernim lokacijama, koje negativno utiču na kvalitet izmerenih podataka. U ovom radu je prikazan primer kombinovanja inovativnih sa konvencionalnim metodama za merenja protoka u kanalizacionim sistemima sa ciljem dobijanja reprezentativnih podataka u složenim mernim uslovima.
AB  - One of the prerequisites for efficient management and development planning of the sewer systems is the adequate knowledge of network dynamics. Measured data play a key role, mainly the flow rate and level variations in dry and wet periods. Unfortunately, sewer networks are commonly scarcely covered with measurement systems. Thus, when capital investments are planned, e.g. wastewater treatment plants (WWTP), missing data is acquired through measurement campaigns. Challenges in the execution of the measurement campaigns are mostly correlated to hydraulically and organizationally unfavorable measurement locations, reflecting negatively on the quality of the measured data. In this paper, an example of the combination of the innovative and conventional flow measurement methods in sewer networks is shown, to allow for the acquisition of the representative data in complex measurement conditions.
PB  - Savez inženjera i tehničara Srbije
C3  - 44. međunarodna konferencija "Vodovod i kanalizacija '23", Zlatibor, 10-13. oktobar 2023.
T1  - Merenje protoka otpadnih voda u kanalizacionim mrežama: Kombinovanje inovativnih sa konvencionalnim mernim metodama
T1  - Wastewater flow measurements in sewer networks: Combining innovative and conventional measurement methods
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3222
ER  - 

@conference{
author = "Ivetić, Damjan and Ljubičić, Robert and Milašinović, Miloš and Prodanović, Dušan and Pavlović, Dragutin",
year = "2023",
abstract = "Jedan od preduslova za efikasno upravljanje i strateško planiranje razvoja kanalizacionih sistema je dobro poznavanje dinamike rada mreže. Ključnu ulogu imaju mereni podaci, prvenstveno o promenama protoka i nivoa, kako u sušnom tako i u kišnom period. Nažalost, kanalizacione mreže su u većini slučajeva slabo pokrivene adekvatnim mernim mestima. Tako prilikom planiranja kapitalnih investicija, npr. postrojenja za prečišćavanje otpadnih voda, nedostajući podaci se obezbeđuju kroz merne kampanje. Ključni izazovi pri sprovođenju mernih kampanja su povezani sa lokacijski i hidraulički nepovoljnim mernim lokacijama, koje negativno utiču na kvalitet izmerenih podataka. U ovom radu je prikazan primer kombinovanja inovativnih sa konvencionalnim metodama za merenja protoka u kanalizacionim sistemima sa ciljem dobijanja reprezentativnih podataka u složenim mernim uslovima., One of the prerequisites for efficient management and development planning of the sewer systems is the adequate knowledge of network dynamics. Measured data play a key role, mainly the flow rate and level variations in dry and wet periods. Unfortunately, sewer networks are commonly scarcely covered with measurement systems. Thus, when capital investments are planned, e.g. wastewater treatment plants (WWTP), missing data is acquired through measurement campaigns. Challenges in the execution of the measurement campaigns are mostly correlated to hydraulically and organizationally unfavorable measurement locations, reflecting negatively on the quality of the measured data. In this paper, an example of the combination of the innovative and conventional flow measurement methods in sewer networks is shown, to allow for the acquisition of the representative data in complex measurement conditions.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "44. međunarodna konferencija "Vodovod i kanalizacija '23", Zlatibor, 10-13. oktobar 2023.",
title = "Merenje protoka otpadnih voda u kanalizacionim mrežama: Kombinovanje inovativnih sa konvencionalnim mernim metodama, Wastewater flow measurements in sewer networks: Combining innovative and conventional measurement methods",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3222"
}

Ivetić, D., Ljubičić, R., Milašinović, M., Prodanović, D.,& Pavlović, D.. (2023). Merenje protoka otpadnih voda u kanalizacionim mrežama: Kombinovanje inovativnih sa konvencionalnim mernim metodama. in 44. međunarodna konferencija "Vodovod i kanalizacija '23", Zlatibor, 10-13. oktobar 2023.
Savez inženjera i tehničara Srbije..
https://hdl.handle.net/21.15107/rcub_grafar_3222

Ivetić D, Ljubičić R, Milašinović M, Prodanović D, Pavlović D. Merenje protoka otpadnih voda u kanalizacionim mrežama: Kombinovanje inovativnih sa konvencionalnim mernim metodama. in 44. međunarodna konferencija "Vodovod i kanalizacija '23", Zlatibor, 10-13. oktobar 2023.. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3222 .

Ivetić, Damjan, Ljubičić, Robert, Milašinović, Miloš, Prodanović, Dušan, Pavlović, Dragutin, "Merenje protoka otpadnih voda u kanalizacionim mrežama: Kombinovanje inovativnih sa konvencionalnim mernim metodama" in 44. međunarodna konferencija "Vodovod i kanalizacija '23", Zlatibor, 10-13. oktobar 2023. (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3222 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Ivetić, Damjan
AU  - Stanić, Miloš
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3212
AB  - Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za 
kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja 
nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži
izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored 
osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da 
obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što 
su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za 
sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti 
mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži 
ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije 
obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 
1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za 
hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za 
vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije 
u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon 
sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije 
sistema (eng. Resilience Index), 2) pokazatelj zadržavanja vode u mreži (eng. Water 
Age) i 3) prosečan pritisak u zonama. Rezultati testiranja metodologije na realnom 
primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih 
kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi 
u procesu sektorizacije.
AB  - Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is 
a proven measure for proactive leakage and pressure control. Sectorization of WDN 
into an optimal system of DMAs is a hard task to achieve, especially for the existing and 
continuously operating WDN. Beside general criteria (e.g. DMA size, network length), 
sectorisation process should be driven by the case-specific criteria such as required 
number of feeds, fire flow regulations etc. This paper presents sectorization algorithm 
that utilizes newly developed uniformity index which drives the sectorization process 
and identifies clusters in the network with uniform demand. The efficiency, usability and 
succesufull application of the developed methodology is ensured through its’ 
implementation in comperhensive hydroinformatics tool encompasing: 1) algorithm for 
automatic sectorization of the network into clusters, 2) efficient model for hydraulic 
simulations and 3) multicriteria optimization. Least investment for field implementation 
and maintaining the same level of WDN’s operational efficiency are adopted as main 
criteria for solution evaluation and selection of preferable solution. To compare the state 
of the system before and after sectorization, the following performance indices were 
adopted: 1) Resilience Index, 2) Water Age and 3) average pressure in zones. Testing 
algorithm on a real-life WDN in Netherlands, subjected to the specific local design 
criteria, proved it can be a valuable decision support tool for sectorization process.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
C3  - Konferencija "Vodovodni i kanalizacioni sistemi 2023"
T1  - Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi
T1  - Sectorization of water distribution network into dmas with performance indices comparison
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3212
ER  - 

@conference{
author = "Vasilić, Željko and Ivetić, Damjan and Stanić, Miloš",
year = "2023",
abstract = "Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za 
kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja 
nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži
izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored 
osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da 
obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što 
su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za 
sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti 
mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži 
ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije 
obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 
1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za 
hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za 
vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije 
u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon 
sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije 
sistema (eng. Resilience Index), 2) pokazatelj zadržavanja vode u mreži (eng. Water 
Age) i 3) prosečan pritisak u zonama. Rezultati testiranja metodologije na realnom 
primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih 
kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi 
u procesu sektorizacije., Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is 
a proven measure for proactive leakage and pressure control. Sectorization of WDN 
into an optimal system of DMAs is a hard task to achieve, especially for the existing and 
continuously operating WDN. Beside general criteria (e.g. DMA size, network length), 
sectorisation process should be driven by the case-specific criteria such as required 
number of feeds, fire flow regulations etc. This paper presents sectorization algorithm 
that utilizes newly developed uniformity index which drives the sectorization process 
and identifies clusters in the network with uniform demand. The efficiency, usability and 
succesufull application of the developed methodology is ensured through its’ 
implementation in comperhensive hydroinformatics tool encompasing: 1) algorithm for 
automatic sectorization of the network into clusters, 2) efficient model for hydraulic 
simulations and 3) multicriteria optimization. Least investment for field implementation 
and maintaining the same level of WDN’s operational efficiency are adopted as main 
criteria for solution evaluation and selection of preferable solution. To compare the state 
of the system before and after sectorization, the following performance indices were 
adopted: 1) Resilience Index, 2) Water Age and 3) average pressure in zones. Testing 
algorithm on a real-life WDN in Netherlands, subjected to the specific local design 
criteria, proved it can be a valuable decision support tool for sectorization process.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Konferencija "Vodovodni i kanalizacioni sistemi 2023"",
title = "Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi, Sectorization of water distribution network into dmas with performance indices comparison",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3212"
}

Vasilić, Ž., Ivetić, D.,& Stanić, M.. (2023). Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi. in Konferencija "Vodovodni i kanalizacioni sistemi 2023"
Udruženje za tehnologijiu vode i sanitarno inženjerstvo..
https://hdl.handle.net/21.15107/rcub_grafar_3212

Vasilić Ž, Ivetić D, Stanić M. Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi. in Konferencija "Vodovodni i kanalizacioni sistemi 2023". 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3212 .

Vasilić, Željko, Ivetić, Damjan, Stanić, Miloš, "Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi" in Konferencija "Vodovodni i kanalizacioni sistemi 2023" (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3212 .

TY  - CONF
AU  - Ivetić, Damjan
AU  - Vasilić, Željko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3146
AB  - Ispiranje vodovodne mreže je osnovna aktivna fizička mera za čišćenje cevi vodovodne mreže sa ciljem održavanja i unapređenja kvaliteta vode za piće. Najčešće se primenjuju tradicionalna, odnosno konvencionalna, tehnika ispiranja i takozvana tehnika ispiranja u jednom pravcu. U ovom radu fokus je stavljen na tehniku ispiranja u jednom pravcu budući da se poslednjih decenija primarno ona koristi zbog određenih prednosti u odnosu na tradicionalnu tehniku. Ispiranje u jednom pravcu se može koristiti u formi reaktivnog odgovora nakon akcidenta sa kvalitetom vode (npr pojava zamućenja vode) ili kao deo protokola za održavanje kvaliteta pijaće vode u redovnim operativnim uslovima. Dobra praksa je pokazala da je neophodno imati plan ispiranja kojim se definiše sekvenca poteznih ispiranja za efikasno ispiranje određenog dela vodovodne mreže. Definisanje plana ispiranja se i dalje najčešće vrši „ručno“ uprkos činjenici da to predstavlja složen i dugotrajan proces. U ovom radu se identifikuju i analiziraju ključni kriterijumi za planiranje ispiranja: geometrijski, hidraulički i ekonomski. Predlaže se okvir za optimizaciju efikasnosti učinka i troškova implementacije, kojim se obezbeđuje bolja kontrola i ujednačenost efikasnosti ispiranja kao i realna procena troškova implementacije plana. Predstavljen je i razvijeni hidroinformatički alat (algoritam) za planiranje ispiranja i analizirani su rezultati primene na primeru jedne zone za ispiranje u gradu Amsterdamu u Holandiji.
AB  - Water distribution network flushing is one of the basic active physical activities for pipe cleaning aiming to preserve and enhance the drinking water quality. Most frequently used techniques are traditional, or conventional, flushing and unidirectional flushing. In this paper, focus is placed on the unidirectional flushing as in past decades, well-equipped water utilities are preferring this technique due to the several advantages over traditional flushing. Unidirectional flushing can be applied in the form of the reactive response after the water quality accident (e.g. discoloration) or within a regular maintenance protocol, under regular operating conditions. Either way, good flushing practice has shown that a flushing plan is needed to define the sequence of the designed flushing operations aiming to allow for effective and efficient discoloration risk mitigation. Design of a flushing plan is still, commonly, a “manual” job, despite the fact that is complex and time-consuming task. Here key criteria for flushing planning are identified and analyzed: geometric, hydraulic and economic. A framework for efficiency and cost optimization is suggested, enabling better control and uniformity of the flushing effectiveness, and providing realistic estimates of the flushing cost. Developed hydroinformatic tool (algorithm) for flushing planning is presented and results of the application on the flushing zone in Amsterdam, Netherlands, are analyzed.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
C3  - Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača
T1  - Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije
T1  - Water distribution networks flushing planning: framework for optimization of implementation efficiency and cost
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3146
ER  - 

@conference{
author = "Ivetić, Damjan and Vasilić, Željko",
year = "2023",
abstract = "Ispiranje vodovodne mreže je osnovna aktivna fizička mera za čišćenje cevi vodovodne mreže sa ciljem održavanja i unapređenja kvaliteta vode za piće. Najčešće se primenjuju tradicionalna, odnosno konvencionalna, tehnika ispiranja i takozvana tehnika ispiranja u jednom pravcu. U ovom radu fokus je stavljen na tehniku ispiranja u jednom pravcu budući da se poslednjih decenija primarno ona koristi zbog određenih prednosti u odnosu na tradicionalnu tehniku. Ispiranje u jednom pravcu se može koristiti u formi reaktivnog odgovora nakon akcidenta sa kvalitetom vode (npr pojava zamućenja vode) ili kao deo protokola za održavanje kvaliteta pijaće vode u redovnim operativnim uslovima. Dobra praksa je pokazala da je neophodno imati plan ispiranja kojim se definiše sekvenca poteznih ispiranja za efikasno ispiranje određenog dela vodovodne mreže. Definisanje plana ispiranja se i dalje najčešće vrši „ručno“ uprkos činjenici da to predstavlja složen i dugotrajan proces. U ovom radu se identifikuju i analiziraju ključni kriterijumi za planiranje ispiranja: geometrijski, hidraulički i ekonomski. Predlaže se okvir za optimizaciju efikasnosti učinka i troškova implementacije, kojim se obezbeđuje bolja kontrola i ujednačenost efikasnosti ispiranja kao i realna procena troškova implementacije plana. Predstavljen je i razvijeni hidroinformatički alat (algoritam) za planiranje ispiranja i analizirani su rezultati primene na primeru jedne zone za ispiranje u gradu Amsterdamu u Holandiji., Water distribution network flushing is one of the basic active physical activities for pipe cleaning aiming to preserve and enhance the drinking water quality. Most frequently used techniques are traditional, or conventional, flushing and unidirectional flushing. In this paper, focus is placed on the unidirectional flushing as in past decades, well-equipped water utilities are preferring this technique due to the several advantages over traditional flushing. Unidirectional flushing can be applied in the form of the reactive response after the water quality accident (e.g. discoloration) or within a regular maintenance protocol, under regular operating conditions. Either way, good flushing practice has shown that a flushing plan is needed to define the sequence of the designed flushing operations aiming to allow for effective and efficient discoloration risk mitigation. Design of a flushing plan is still, commonly, a “manual” job, despite the fact that is complex and time-consuming task. Here key criteria for flushing planning are identified and analyzed: geometric, hydraulic and economic. A framework for efficiency and cost optimization is suggested, enabling better control and uniformity of the flushing effectiveness, and providing realistic estimates of the flushing cost. Developed hydroinformatic tool (algorithm) for flushing planning is presented and results of the application on the flushing zone in Amsterdam, Netherlands, are analyzed.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača",
title = "Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije, Water distribution networks flushing planning: framework for optimization of implementation efficiency and cost",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3146"
}

Ivetić, D.,& Vasilić, Ž.. (2023). Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije. in Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača
Udruženje za tehnologijiu vode i sanitarno inženjerstvo..
https://hdl.handle.net/21.15107/rcub_grafar_3146

Ivetić D, Vasilić Ž. Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije. in Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3146 .

Ivetić, Damjan, Vasilić, Željko, "Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije" in Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3146 .

TY  - JOUR
AU  - Milašinović, Miloš
AU  - Ivetić, Damjan
AU  - Stojković, Milan
AU  - Savić, Dragan
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3034
AB  - Climate change, energy transition, population growth and other natural and anthropogenic impacts, combined with outdated (unfashionable) infrastructure, can force Dam and Reservoir Systems (DRS) operation outside of the design envelope (adverse operating conditions). Since there is no easy way to redesign or upgrade the existing DRSs to mitigate against all the potential failure situations, Digital Twins (DT) of DRSs are required to assess system’s performance under various what-if scenarios. The current state of practice in failure modelling is that failures (system’s not performing at the expected level or not at all) are randomly created and implemented in simulation models. That approach helps in identifying the riskiest parts (subsystems) of the DRS (risk-based approach), but does not consider hazards leading to failures, their occurrence probabilities or subsystem failure exposure. To overcome these drawbacks, this paper presents a more realistic failure scenario generator based on a causal approach. Here, the novel failure simulation approach utilizes fuzzy logic reasoning to create DRS failures based on hazard severity and subsystems’ reliability. Combined with the system dynamics (SD) model this general failure simulation tool is designed to be used with any DRS. The potential of the proposed method is demonstrated using the Pirot DRS case study in Serbia over a 10-year simulation period. Results show that even occasional hazards (as for more than 97% of the simulation there were no hazards), combined with outdated infrastructure can reduce DRS performance by 50%, which can help in identifying possible “hidden” failure risks and support system maintenance prioritization.
PB  - Springer Link
T2  - Water Resources Management
T1  - Failure Conditions Assessment of Complex Water Systems Using Fuzzy Logic
DO  - 10.1007/s11269-022-03420-w
ER  - 

@article{
author = "Milašinović, Miloš and Ivetić, Damjan and Stojković, Milan and Savić, Dragan",
year = "2023",
abstract = "Climate change, energy transition, population growth and other natural and anthropogenic impacts, combined with outdated (unfashionable) infrastructure, can force Dam and Reservoir Systems (DRS) operation outside of the design envelope (adverse operating conditions). Since there is no easy way to redesign or upgrade the existing DRSs to mitigate against all the potential failure situations, Digital Twins (DT) of DRSs are required to assess system’s performance under various what-if scenarios. The current state of practice in failure modelling is that failures (system’s not performing at the expected level or not at all) are randomly created and implemented in simulation models. That approach helps in identifying the riskiest parts (subsystems) of the DRS (risk-based approach), but does not consider hazards leading to failures, their occurrence probabilities or subsystem failure exposure. To overcome these drawbacks, this paper presents a more realistic failure scenario generator based on a causal approach. Here, the novel failure simulation approach utilizes fuzzy logic reasoning to create DRS failures based on hazard severity and subsystems’ reliability. Combined with the system dynamics (SD) model this general failure simulation tool is designed to be used with any DRS. The potential of the proposed method is demonstrated using the Pirot DRS case study in Serbia over a 10-year simulation period. Results show that even occasional hazards (as for more than 97% of the simulation there were no hazards), combined with outdated infrastructure can reduce DRS performance by 50%, which can help in identifying possible “hidden” failure risks and support system maintenance prioritization.",
publisher = "Springer Link",
journal = "Water Resources Management",
title = "Failure Conditions Assessment of Complex Water Systems Using Fuzzy Logic",
doi = "10.1007/s11269-022-03420-w"
}

Milašinović, M., Ivetić, D., Stojković, M.,& Savić, D.. (2023). Failure Conditions Assessment of Complex Water Systems Using Fuzzy Logic. in Water Resources Management
Springer Link..
https://doi.org/10.1007/s11269-022-03420-w

Milašinović M, Ivetić D, Stojković M, Savić D. Failure Conditions Assessment of Complex Water Systems Using Fuzzy Logic. in Water Resources Management. 2023;.
doi:10.1007/s11269-022-03420-w .

Milašinović, Miloš, Ivetić, Damjan, Stojković, Milan, Savić, Dragan, "Failure Conditions Assessment of Complex Water Systems Using Fuzzy Logic" in Water Resources Management (2023),
https://doi.org/10.1007/s11269-022-03420-w . .

TY  - CONF
AU  - Ivetić, Damjan
AU  - Ljubičić, Robert
AU  - Milašinović, Miloš
AU  - Pavlović, Dragutin
AU  - Prodanović, Dušan
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3112
AB  - Upravljanje kanalizacionim sistemima se zasniva na poznavanju rada mreže. Podaci o radu mreže uglavnom su skromnog obima. Usled ograničenih budžeta, komunalna preduzeća retko investiraju u formiranju stalnih mernih mesta. Prilikom planiranja kapitalnih investicija, npr. postrojenja za prečišćavanje otpadnih voda, nedostajući podaci se obezbeđuju kratkoročnim mernim kampanjama na privremenim mernim mestima. Problemi su povezani lokacijski i hidraulički nepovoljnim mernim mestima  Izvođači merenja kombinuju merne metode i tehnologije, ili primenjuju inovativna rešenja obezbeđujući zadovoljavajući kvalitet ipodataka. U radu su prikazana inovativna rešenja osmišljena na Institutu za hidrotehniku i vodno ekološko inženjerstvo Građevinskog fakulteta Univerziteta u Beogradu na kampanji merenja u kanalizacionim sistemima Inđije, Stare Pazove i Novih Banovaca.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
C3  - Konferencija "Vodovodni i kanalizacioni sistemi 2023"
T1  - Primena inovativnih rešenja za merenja protoka u kanalizacionim mrežama: Iskustva stečena u Inđiji, Staroj Pazovi i Novim Banovcima
EP  - 106
SP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3112
ER  - 

@conference{
author = "Ivetić, Damjan and Ljubičić, Robert and Milašinović, Miloš and Pavlović, Dragutin and Prodanović, Dušan",
year = "2023",
abstract = "Upravljanje kanalizacionim sistemima se zasniva na poznavanju rada mreže. Podaci o radu mreže uglavnom su skromnog obima. Usled ograničenih budžeta, komunalna preduzeća retko investiraju u formiranju stalnih mernih mesta. Prilikom planiranja kapitalnih investicija, npr. postrojenja za prečišćavanje otpadnih voda, nedostajući podaci se obezbeđuju kratkoročnim mernim kampanjama na privremenim mernim mestima. Problemi su povezani lokacijski i hidraulički nepovoljnim mernim mestima  Izvođači merenja kombinuju merne metode i tehnologije, ili primenjuju inovativna rešenja obezbeđujući zadovoljavajući kvalitet ipodataka. U radu su prikazana inovativna rešenja osmišljena na Institutu za hidrotehniku i vodno ekološko inženjerstvo Građevinskog fakulteta Univerziteta u Beogradu na kampanji merenja u kanalizacionim sistemima Inđije, Stare Pazove i Novih Banovaca.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Konferencija "Vodovodni i kanalizacioni sistemi 2023"",
title = "Primena inovativnih rešenja za merenja protoka u kanalizacionim mrežama: Iskustva stečena u Inđiji, Staroj Pazovi i Novim Banovcima",
pages = "106-95",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3112"
}

Ivetić, D., Ljubičić, R., Milašinović, M., Pavlović, D.,& Prodanović, D.. (2023). Primena inovativnih rešenja za merenja protoka u kanalizacionim mrežama: Iskustva stečena u Inđiji, Staroj Pazovi i Novim Banovcima. in Konferencija "Vodovodni i kanalizacioni sistemi 2023"
Udruženje za tehnologijiu vode i sanitarno inženjerstvo., 95-106.
https://hdl.handle.net/21.15107/rcub_grafar_3112

Ivetić D, Ljubičić R, Milašinović M, Pavlović D, Prodanović D. Primena inovativnih rešenja za merenja protoka u kanalizacionim mrežama: Iskustva stečena u Inđiji, Staroj Pazovi i Novim Banovcima. in Konferencija "Vodovodni i kanalizacioni sistemi 2023". 2023;:95-106.
https://hdl.handle.net/21.15107/rcub_grafar_3112 .

Ivetić, Damjan, Ljubičić, Robert, Milašinović, Miloš, Pavlović, Dragutin, Prodanović, Dušan, "Primena inovativnih rešenja za merenja protoka u kanalizacionim mrežama: Iskustva stečena u Inđiji, Staroj Pazovi i Novim Banovcima" in Konferencija "Vodovodni i kanalizacioni sistemi 2023" (2023):95-106,
https://hdl.handle.net/21.15107/rcub_grafar_3112 .

TY  - CONF
AU  - Ljubičić, Robert
AU  - Ivetić, Damjan
AU  - Milašinović, Miloš
AU  - Pavlović, Dragutin
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3111
AB  - Tehnike merenja u hidrotehnici zasnovane na upotrebi kamera i naknadnoj obradi video zapisa u trendu su poslednje dve decenije. Odlikuju ih tehnička jednostavnost, niska cena i prilagodljivost hardvera i softvera. Međutim, primena za merenje protoka u kanalizacionim sistemima nije analizirana u literaturi. Tim Građevinskog fakulteta Univerziteta u Beogradu osmislio je, konstruisao i postavio merni uređaj, baterijski napajan mikroračunar sa IC kamerom u kanalizacioni šaht u naselju Novi Banovci radi kontinualnog merenja dotoka upotrebljene vode. Rad prikazuje specifičnosti upotrebe mernog uređaja i tehnike obrade video zapisa. Preliminarni rezultati pokazuju potencijal razvijene metodologije, posebno tamo gde konvencionalna oprema nije primenjiva.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
C3  - Konferencija "Vodovodni i kanalizacioni sistemi 2023"
T1  - Primena kamera i tehnika obrade video zapisa za procenu protoka u kanalizacionim sistemima - iskustva merne kampanje Novi Banovci
EP  - 129
SP  - 117
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3111
ER  - 

@conference{
author = "Ljubičić, Robert and Ivetić, Damjan and Milašinović, Miloš and Pavlović, Dragutin",
year = "2023",
abstract = "Tehnike merenja u hidrotehnici zasnovane na upotrebi kamera i naknadnoj obradi video zapisa u trendu su poslednje dve decenije. Odlikuju ih tehnička jednostavnost, niska cena i prilagodljivost hardvera i softvera. Međutim, primena za merenje protoka u kanalizacionim sistemima nije analizirana u literaturi. Tim Građevinskog fakulteta Univerziteta u Beogradu osmislio je, konstruisao i postavio merni uređaj, baterijski napajan mikroračunar sa IC kamerom u kanalizacioni šaht u naselju Novi Banovci radi kontinualnog merenja dotoka upotrebljene vode. Rad prikazuje specifičnosti upotrebe mernog uređaja i tehnike obrade video zapisa. Preliminarni rezultati pokazuju potencijal razvijene metodologije, posebno tamo gde konvencionalna oprema nije primenjiva.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Konferencija "Vodovodni i kanalizacioni sistemi 2023"",
title = "Primena kamera i tehnika obrade video zapisa za procenu protoka u kanalizacionim sistemima - iskustva merne kampanje Novi Banovci",
pages = "129-117",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3111"
}

Ljubičić, R., Ivetić, D., Milašinović, M.,& Pavlović, D.. (2023). Primena kamera i tehnika obrade video zapisa za procenu protoka u kanalizacionim sistemima - iskustva merne kampanje Novi Banovci. in Konferencija "Vodovodni i kanalizacioni sistemi 2023"
Udruženje za tehnologijiu vode i sanitarno inženjerstvo., 117-129.
https://hdl.handle.net/21.15107/rcub_grafar_3111

Ljubičić R, Ivetić D, Milašinović M, Pavlović D. Primena kamera i tehnika obrade video zapisa za procenu protoka u kanalizacionim sistemima - iskustva merne kampanje Novi Banovci. in Konferencija "Vodovodni i kanalizacioni sistemi 2023". 2023;:117-129.
https://hdl.handle.net/21.15107/rcub_grafar_3111 .

Ljubičić, Robert, Ivetić, Damjan, Milašinović, Miloš, Pavlović, Dragutin, "Primena kamera i tehnika obrade video zapisa za procenu protoka u kanalizacionim sistemima - iskustva merne kampanje Novi Banovci" in Konferencija "Vodovodni i kanalizacioni sistemi 2023" (2023):117-129,
https://hdl.handle.net/21.15107/rcub_grafar_3111 .

TY  - JOUR
AU  - Stojković, Milan
AU  - Marjanović, Dušan
AU  - Rakić, Dragan
AU  - Ivetić, Damjan
AU  - Simić, Višnja
AU  - Milivojević, Nikola
AU  - Trajković, Slaviša
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3040
AB  - The objective of this research is to propose a novel framework for assessing the consequences of hazardous events on a water resources system using dynamic resilience. Two types of hazardous events were considered: a severe flood event and an earthquake. Given that one or both hazards have occurred and considering the intensity of those events, the main characteristics of flood
 dynamic resilience were evaluated. The framework utilizes an artificial neural network (ANN) to estimate dynamic resilience. The ANN was trained using a large, generated dataset that included a wide range of situations, from relatively mild hazards to severe ones. A case study was performed on the Pirot water system (Serbia). Dynamic resilience was derived from the developed system dynamics model alongside the hazardous models implemented. The most extreme hazard combination results in the robustness of 0.04, indicating a combination of an earthquake with a significant magnitude and a flood hydrograph with a low frequency of occurrence. In the case of moderate hazards, the system robustness has a median value of 0.2 and the rapidity median value of 162 h. The ANN’s efficacy was quantified using the average relative error metric which equals 2.14% and 1.77% for robustness and rapidity, respectively.
PB  - IWA Publishing
T2  - Journal of Hydroinformatics
T1  - Assessment of water resources system resilience under hazardous events using system dynamic approach and artificial neural networks
DO  - 10.2166/hydro.2023.069
ER  - 

@article{
author = "Stojković, Milan and Marjanović, Dušan and Rakić, Dragan and Ivetić, Damjan and Simić, Višnja and Milivojević, Nikola and Trajković, Slaviša",
year = "2023",
abstract = "The objective of this research is to propose a novel framework for assessing the consequences of hazardous events on a water resources system using dynamic resilience. Two types of hazardous events were considered: a severe flood event and an earthquake. Given that one or both hazards have occurred and considering the intensity of those events, the main characteristics of flood
 dynamic resilience were evaluated. The framework utilizes an artificial neural network (ANN) to estimate dynamic resilience. The ANN was trained using a large, generated dataset that included a wide range of situations, from relatively mild hazards to severe ones. A case study was performed on the Pirot water system (Serbia). Dynamic resilience was derived from the developed system dynamics model alongside the hazardous models implemented. The most extreme hazard combination results in the robustness of 0.04, indicating a combination of an earthquake with a significant magnitude and a flood hydrograph with a low frequency of occurrence. In the case of moderate hazards, the system robustness has a median value of 0.2 and the rapidity median value of 162 h. The ANN’s efficacy was quantified using the average relative error metric which equals 2.14% and 1.77% for robustness and rapidity, respectively.",
publisher = "IWA Publishing",
journal = "Journal of Hydroinformatics",
title = "Assessment of water resources system resilience under hazardous events using system dynamic approach and artificial neural networks",
doi = "10.2166/hydro.2023.069"
}

Stojković, M., Marjanović, D., Rakić, D., Ivetić, D., Simić, V., Milivojević, N.,& Trajković, S.. (2023). Assessment of water resources system resilience under hazardous events using system dynamic approach and artificial neural networks. in Journal of Hydroinformatics
IWA Publishing..
https://doi.org/10.2166/hydro.2023.069

Stojković M, Marjanović D, Rakić D, Ivetić D, Simić V, Milivojević N, Trajković S. Assessment of water resources system resilience under hazardous events using system dynamic approach and artificial neural networks. in Journal of Hydroinformatics. 2023;.
doi:10.2166/hydro.2023.069 .

Stojković, Milan, Marjanović, Dušan, Rakić, Dragan, Ivetić, Damjan, Simić, Višnja, Milivojević, Nikola, Trajković, Slaviša, "Assessment of water resources system resilience under hazardous events using system dynamic approach and artificial neural networks" in Journal of Hydroinformatics (2023),
https://doi.org/10.2166/hydro.2023.069 . .

TY  - JOUR
AU  - Ivetić, Damjan
AU  - Milašinović, Miloš
AU  - Stojković, Milan
AU  - Šotić, Aleksandar
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2835
AB  - Akumulacije kao složeni vodoprivredni sistemi predstavljaju ključne infrastrukturne elemente, neophodne za pouzdano upravljanje vodnim resursima. Poslednjih godina, ovi sistemi su izloženi sve nepovoljnijim prirodnim i antropogenim uticajima (dotrajala i zasterala infrastruktura, prirodne nepogode, globalne krize, ektremni hidrološki događaji itd.). Na ovaj način, dodatan pritisak se nameće odgovornim operaterima, koji moraju da upravljaju akumulacijama u nepovoljnim operativnim uslovima, koji se nalaze izvan projektnih okvira. Jedan od mogućih pristupa za 
podršku donosiocima odluka je upotrebna simulacionih alata za modeliranje različitih „Šta ako?“ scenarija. Posebno se izdvaja upotreba modela dinamike sistema, koji su pokazali kapacitet da adekvatno predstave kompleksnost ovakvih sistema. U ovom radu je predstavljen okvir, ili okvirna metodologija, od 11 koraka, za dinamičko modeliranje rada akumulacija u nepovoljnim operativnim uslovima. Okvir obuhvata celine kao što su: formiranje modela sistema, generisanje ulaznih scenarija, simuliranje rada sistema i evaluacija performansi. Fokus je na koracima koji pokrivaju konceptualnu dekompoziciju akumulacija kao složenih sistema, identifikaciju indikatora otkaza, 
definisanje i implementaciju funkcija otkaza u modele dinamike podsistema i dinamičko modeliranje otkaza. Kroz ove korake, predstavljen je nov pristup za dinamičko modeliranje otkaza (parcijalnih ili potpunih) akumulacije kao celine i/ili odgovarajućih podsistema, 
koji se neretko javljaju u nepovoljnim operativnim uslovima. Za svaki podsistem koji je sklon otkazu, definiše se indikator otkaza. Funkcije otkaza, koje koriste generičke indikatore funkcionalnosti čija vrednost može biti u opsegu od 0 do 1, modifikuju vrednost indikatora otkaza tokom simulacija, modelirajući uticaj otkaza komponenata/podsistema na rad akumulacije. Primer akumulacije Zavoj, odnosno HE Pirot, je iskorišćen da bi se ilustrovale mogućnosti predložene metodologije. Razmatrani su hipotetički slučajevi fizičkih oštećenja na različitim objektima 
brane, porast merne nesigurnosti, nedostatak rezervnih delova za popravku u periodima svetskih kriznih događaja. Rezultati primene su omogućili izvođenje preliminarnih zaključaka o svrsishodnosti analiza rada akumulacija u nepovoljnim operativnim uslovima.
PB  - Srpsko društvo za odvodnjavanje i navodnjavanje
T2  - Vodoprivreda
T1  - Okvir za dinamičko modeliranje rada akumulacija u nepovoljnim operativnim uslovima
T1  - Framework for the dynamic modelling of the reservoir operation in adverse operating conditions
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2835
ER  - 

@article{
author = "Ivetić, Damjan and Milašinović, Miloš and Stojković, Milan and Šotić, Aleksandar",
year = "2022",
abstract = "Akumulacije kao složeni vodoprivredni sistemi predstavljaju ključne infrastrukturne elemente, neophodne za pouzdano upravljanje vodnim resursima. Poslednjih godina, ovi sistemi su izloženi sve nepovoljnijim prirodnim i antropogenim uticajima (dotrajala i zasterala infrastruktura, prirodne nepogode, globalne krize, ektremni hidrološki događaji itd.). Na ovaj način, dodatan pritisak se nameće odgovornim operaterima, koji moraju da upravljaju akumulacijama u nepovoljnim operativnim uslovima, koji se nalaze izvan projektnih okvira. Jedan od mogućih pristupa za 
podršku donosiocima odluka je upotrebna simulacionih alata za modeliranje različitih „Šta ako?“ scenarija. Posebno se izdvaja upotreba modela dinamike sistema, koji su pokazali kapacitet da adekvatno predstave kompleksnost ovakvih sistema. U ovom radu je predstavljen okvir, ili okvirna metodologija, od 11 koraka, za dinamičko modeliranje rada akumulacija u nepovoljnim operativnim uslovima. Okvir obuhvata celine kao što su: formiranje modela sistema, generisanje ulaznih scenarija, simuliranje rada sistema i evaluacija performansi. Fokus je na koracima koji pokrivaju konceptualnu dekompoziciju akumulacija kao složenih sistema, identifikaciju indikatora otkaza, 
definisanje i implementaciju funkcija otkaza u modele dinamike podsistema i dinamičko modeliranje otkaza. Kroz ove korake, predstavljen je nov pristup za dinamičko modeliranje otkaza (parcijalnih ili potpunih) akumulacije kao celine i/ili odgovarajućih podsistema, 
koji se neretko javljaju u nepovoljnim operativnim uslovima. Za svaki podsistem koji je sklon otkazu, definiše se indikator otkaza. Funkcije otkaza, koje koriste generičke indikatore funkcionalnosti čija vrednost može biti u opsegu od 0 do 1, modifikuju vrednost indikatora otkaza tokom simulacija, modelirajući uticaj otkaza komponenata/podsistema na rad akumulacije. Primer akumulacije Zavoj, odnosno HE Pirot, je iskorišćen da bi se ilustrovale mogućnosti predložene metodologije. Razmatrani su hipotetički slučajevi fizičkih oštećenja na različitim objektima 
brane, porast merne nesigurnosti, nedostatak rezervnih delova za popravku u periodima svetskih kriznih događaja. Rezultati primene su omogućili izvođenje preliminarnih zaključaka o svrsishodnosti analiza rada akumulacija u nepovoljnim operativnim uslovima.",
publisher = "Srpsko društvo za odvodnjavanje i navodnjavanje",
journal = "Vodoprivreda",
title = "Okvir za dinamičko modeliranje rada akumulacija u nepovoljnim operativnim uslovima, Framework for the dynamic modelling of the reservoir operation in adverse operating conditions",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2835"
}

Ivetić, D., Milašinović, M., Stojković, M.,& Šotić, A.. (2022). Okvir za dinamičko modeliranje rada akumulacija u nepovoljnim operativnim uslovima. in Vodoprivreda
Srpsko društvo za odvodnjavanje i navodnjavanje., 54.
https://hdl.handle.net/21.15107/rcub_grafar_2835

Ivetić D, Milašinović M, Stojković M, Šotić A. Okvir za dinamičko modeliranje rada akumulacija u nepovoljnim operativnim uslovima. in Vodoprivreda. 2022;54.
https://hdl.handle.net/21.15107/rcub_grafar_2835 .

Ivetić, Damjan, Milašinović, Miloš, Stojković, Milan, Šotić, Aleksandar, "Okvir za dinamičko modeliranje rada akumulacija u nepovoljnim operativnim uslovima" in Vodoprivreda, 54 (2022),
https://hdl.handle.net/21.15107/rcub_grafar_2835 .

TY  - JOUR
AU  - Ivetić, Damjan
AU  - Milašinović, Miloš
AU  - Stojković, Milan
AU  - Šotić, Aleksandar
AU  - Charbonnier, Nicolas
AU  - Milivojević, Nikola
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2673
AB  - Dam and reservoir systems (DRSs) are crucial aspects of the infrastructure necessary for reliable water resource management. Nowadays, DRSs are being increasingly affected by numerous natural and anthropogenic impacts (aging and outdated infrastructure, climate change, natural hazards, global crises, etc.). Hence, additional pressure on DRS management is being applied as DRSs must be operated in adverse operating conditions, outside of their design envelopes. Since there is no practical way to redesign DRSs to meet all possible adverse conditions, efficient simulation tools are necessary for various “what-if” analyses. A system dynamics (SD) approach can be used, as it has shown the capacity to comprehend the intrinsic system complexity. In this paper, an 11-step framework for the dynamic modelling of reduced functionality in a DRS and the emulation of the system operation in adverse conditions is proposed. The framework covers the system model design, input scenario generation, system simulation, and performance evaluation steps. A focus is placed on the steps related to system decomposition, the identification of failure-indicative parameters, the definition and implementation of failure functions in the subsystem dynamic models, and dynamic failure modelling. Through these steps, a novel procedure is proposed for the dynamic modelling of the DRS subsystems’ failures (reduced functionality), common in the operation of DRSs under adverse conditions. For each subsystem prone to failure, failure-indicative parameters are identified. Failure functions employing generic functionality indicators, with values spanning from 0 to 1, are suggested to modify the values of the failure-indicative parameters in simulations and emulate the component failure impacts on DRS operation. Possibilities for modelling failure modes for different subsystems, varying in nature, duration, and magnitude are discussed. Potential physical damage to the system components, increases in measurement uncertainty, and the lack of the spare parts during periods of global crisis are applied as disturbances to the Pirot DRS case study to illustrate the possibilities of the suggested framework’s application for DRS failure modelling. It was concluded that the proposed framework allowed for the detection of severe impacts on system performance, emphasizing the need for DRS dynamic failure modelling in system analysis.
PB  - MDPI
T2  - Water MDPI
T1  - Framework for Dynamic Modelling of the Dam and Reservoir System Reduced Functionality in Adverse Operating Conditions
VL  - 14(10)
DO  - 10.3390/w14101549
ER  - 

@article{
author = "Ivetić, Damjan and Milašinović, Miloš and Stojković, Milan and Šotić, Aleksandar and Charbonnier, Nicolas and Milivojević, Nikola",
year = "2022",
abstract = "Dam and reservoir systems (DRSs) are crucial aspects of the infrastructure necessary for reliable water resource management. Nowadays, DRSs are being increasingly affected by numerous natural and anthropogenic impacts (aging and outdated infrastructure, climate change, natural hazards, global crises, etc.). Hence, additional pressure on DRS management is being applied as DRSs must be operated in adverse operating conditions, outside of their design envelopes. Since there is no practical way to redesign DRSs to meet all possible adverse conditions, efficient simulation tools are necessary for various “what-if” analyses. A system dynamics (SD) approach can be used, as it has shown the capacity to comprehend the intrinsic system complexity. In this paper, an 11-step framework for the dynamic modelling of reduced functionality in a DRS and the emulation of the system operation in adverse conditions is proposed. The framework covers the system model design, input scenario generation, system simulation, and performance evaluation steps. A focus is placed on the steps related to system decomposition, the identification of failure-indicative parameters, the definition and implementation of failure functions in the subsystem dynamic models, and dynamic failure modelling. Through these steps, a novel procedure is proposed for the dynamic modelling of the DRS subsystems’ failures (reduced functionality), common in the operation of DRSs under adverse conditions. For each subsystem prone to failure, failure-indicative parameters are identified. Failure functions employing generic functionality indicators, with values spanning from 0 to 1, are suggested to modify the values of the failure-indicative parameters in simulations and emulate the component failure impacts on DRS operation. Possibilities for modelling failure modes for different subsystems, varying in nature, duration, and magnitude are discussed. Potential physical damage to the system components, increases in measurement uncertainty, and the lack of the spare parts during periods of global crisis are applied as disturbances to the Pirot DRS case study to illustrate the possibilities of the suggested framework’s application for DRS failure modelling. It was concluded that the proposed framework allowed for the detection of severe impacts on system performance, emphasizing the need for DRS dynamic failure modelling in system analysis.",
publisher = "MDPI",
journal = "Water MDPI",
title = "Framework for Dynamic Modelling of the Dam and Reservoir System Reduced Functionality in Adverse Operating Conditions",
volume = "14(10)",
doi = "10.3390/w14101549"
}

Ivetić, D., Milašinović, M., Stojković, M., Šotić, A., Charbonnier, N.,& Milivojević, N.. (2022). Framework for Dynamic Modelling of the Dam and Reservoir System Reduced Functionality in Adverse Operating Conditions. in Water MDPI
MDPI., 14(10).
https://doi.org/10.3390/w14101549

Ivetić D, Milašinović M, Stojković M, Šotić A, Charbonnier N, Milivojević N. Framework for Dynamic Modelling of the Dam and Reservoir System Reduced Functionality in Adverse Operating Conditions. in Water MDPI. 2022;14(10).
doi:10.3390/w14101549 .

Ivetić, Damjan, Milašinović, Miloš, Stojković, Milan, Šotić, Aleksandar, Charbonnier, Nicolas, Milivojević, Nikola, "Framework for Dynamic Modelling of the Dam and Reservoir System Reduced Functionality in Adverse Operating Conditions" in Water MDPI, 14(10) (2022),
https://doi.org/10.3390/w14101549 . .

TY  - CONF
AU  - Babić, Branislav
AU  - Ivetić, Damjan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2905
AB  - U velikom broju vodovodnih sistema, naročito u zemlјama u razvoju, podaci o elementima sistema, merenja protoka i potrošnje vode imaju veliku neodređenost. Ova neodređenost se u dalјim proračunima propagira na izračunate vrednosti indikatora performansi (PI) sistema. Podaci velike neodređenosti mogu da navedu na pogrešne zaklјučke i samim tim dovedu do pogrešnih upravlјačkih odluka. Analiza grešaka i neodređenosti obuhvata proučavanje i kvantifikovanje neodređenosti, a na osnovu dobijenih rezultata preduzimaju se mere za njeno minimiziranje. U ovom radu je prikazana primena ISO metodologije, koja uklјučuje i zakon propagacije neodređenosti, za procenu neodređenosti merenja i njene propagacije na PI vodovodnih distributivnih sistema - VDS. Na primeru grada Požarevca (centralna Srbija), prikazan je postupak za smanjenje neodređenosti ulaznih parametara na osnovu kojih se računaju komponente vodnog bilansa i indikatora ILI (eng. Infrastructure Leakage Index), kao jednog od klјučnih PI za procenu stanja vodovodnog sistema.
PB  - Savez inženjera i tehničara Srbije
C3  - Konferencija Gubici vode u sistemu javnog vodosnabdevanja
T1  - Povećanje pouzdanosti procene komponenti vodnog bilansa u vodovodnom sistemu
EP  - 29
IS  - 14
SP  - 16
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2905
ER  - 

@conference{
author = "Babić, Branislav and Ivetić, Damjan",
year = "2022",
abstract = "U velikom broju vodovodnih sistema, naročito u zemlјama u razvoju, podaci o elementima sistema, merenja protoka i potrošnje vode imaju veliku neodređenost. Ova neodređenost se u dalјim proračunima propagira na izračunate vrednosti indikatora performansi (PI) sistema. Podaci velike neodređenosti mogu da navedu na pogrešne zaklјučke i samim tim dovedu do pogrešnih upravlјačkih odluka. Analiza grešaka i neodređenosti obuhvata proučavanje i kvantifikovanje neodređenosti, a na osnovu dobijenih rezultata preduzimaju se mere za njeno minimiziranje. U ovom radu je prikazana primena ISO metodologije, koja uklјučuje i zakon propagacije neodređenosti, za procenu neodređenosti merenja i njene propagacije na PI vodovodnih distributivnih sistema - VDS. Na primeru grada Požarevca (centralna Srbija), prikazan je postupak za smanjenje neodređenosti ulaznih parametara na osnovu kojih se računaju komponente vodnog bilansa i indikatora ILI (eng. Infrastructure Leakage Index), kao jednog od klјučnih PI za procenu stanja vodovodnog sistema.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "Konferencija Gubici vode u sistemu javnog vodosnabdevanja",
title = "Povećanje pouzdanosti procene komponenti vodnog bilansa u vodovodnom sistemu",
pages = "29-16",
number = "14",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2905"
}

Babić, B.,& Ivetić, D.. (2022). Povećanje pouzdanosti procene komponenti vodnog bilansa u vodovodnom sistemu. in Konferencija Gubici vode u sistemu javnog vodosnabdevanja
Savez inženjera i tehničara Srbije.(14), 16-29.
https://hdl.handle.net/21.15107/rcub_grafar_2905

Babić B, Ivetić D. Povećanje pouzdanosti procene komponenti vodnog bilansa u vodovodnom sistemu. in Konferencija Gubici vode u sistemu javnog vodosnabdevanja. 2022;(14):16-29.
https://hdl.handle.net/21.15107/rcub_grafar_2905 .

Babić, Branislav, Ivetić, Damjan, "Povećanje pouzdanosti procene komponenti vodnog bilansa u vodovodnom sistemu" in Konferencija Gubici vode u sistemu javnog vodosnabdevanja, no. 14 (2022):16-29,
https://hdl.handle.net/21.15107/rcub_grafar_2905 .

TY  - CONF
AU  - Ivetić, Damjan
AU  - Prodanović, Dušan
AU  - Milivojević, Nikola
AU  - Vojt, Predrag
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2834
AB  - To allow for the reliable hydraulic efficiency estimation of the tubular turbines before and after their revitalization at the Hydro Power Plant (HPP) Iron Gate 2, a novel flow measurement system was designed and tested on two turbines. In this paper the details of used approach for the assessment of the flow measurement uncertainty are presented. The presented methodology is tailored for specific application of the Velocity – Area flow measurements at HPP, based on the utilization of electro-magnetic velocity meters (EMVM), instead of traditional propeller current meters. Although the procedure for the assessment of the flow measurement uncertainty in similar cases of low-head plants and short intakes can be found in the literature, the adverse flow conditions, novel EMVM sensors and the specific operating modes have instigated a need for modifications and improvements of the procedure. Assuming analogy between the current meters and EM meters, the IEC 60041 and ISO 3354 procedure for flow rate measurement uncertainty assessment was used as a template, with implemented moderate changes accounting for the features of the applied measurement. Selected flow measurements from the 2020. campaign are analyzed, with an emphasis on the variation of the magnitudes of the measurement uncertainty components.
PB  - International group for hydraulic efficiency measurement (IGHEM)
C3  - 13th International conference on hydraulic efficiency measurement, Grenoble, France
T1  - Uncertainty assessment of flow measurements at Iron Gate 2
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2834
ER  - 

@conference{
author = "Ivetić, Damjan and Prodanović, Dušan and Milivojević, Nikola and Vojt, Predrag",
year = "2022",
abstract = "To allow for the reliable hydraulic efficiency estimation of the tubular turbines before and after their revitalization at the Hydro Power Plant (HPP) Iron Gate 2, a novel flow measurement system was designed and tested on two turbines. In this paper the details of used approach for the assessment of the flow measurement uncertainty are presented. The presented methodology is tailored for specific application of the Velocity – Area flow measurements at HPP, based on the utilization of electro-magnetic velocity meters (EMVM), instead of traditional propeller current meters. Although the procedure for the assessment of the flow measurement uncertainty in similar cases of low-head plants and short intakes can be found in the literature, the adverse flow conditions, novel EMVM sensors and the specific operating modes have instigated a need for modifications and improvements of the procedure. Assuming analogy between the current meters and EM meters, the IEC 60041 and ISO 3354 procedure for flow rate measurement uncertainty assessment was used as a template, with implemented moderate changes accounting for the features of the applied measurement. Selected flow measurements from the 2020. campaign are analyzed, with an emphasis on the variation of the magnitudes of the measurement uncertainty components.",
publisher = "International group for hydraulic efficiency measurement (IGHEM)",
journal = "13th International conference on hydraulic efficiency measurement, Grenoble, France",
title = "Uncertainty assessment of flow measurements at Iron Gate 2",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2834"
}

Ivetić, D., Prodanović, D., Milivojević, N.,& Vojt, P.. (2022). Uncertainty assessment of flow measurements at Iron Gate 2. in 13th International conference on hydraulic efficiency measurement, Grenoble, France
International group for hydraulic efficiency measurement (IGHEM)..
https://hdl.handle.net/21.15107/rcub_grafar_2834

Ivetić D, Prodanović D, Milivojević N, Vojt P. Uncertainty assessment of flow measurements at Iron Gate 2. in 13th International conference on hydraulic efficiency measurement, Grenoble, France. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_2834 .

Ivetić, Damjan, Prodanović, Dušan, Milivojević, Nikola, Vojt, Predrag, "Uncertainty assessment of flow measurements at Iron Gate 2" in 13th International conference on hydraulic efficiency measurement, Grenoble, France (2022),
https://hdl.handle.net/21.15107/rcub_grafar_2834 .

TY  - CONF
AU  - Prodanović, Dušan
AU  - Ivetić, Damjan
AU  - Milivojević, Nikola
AU  - Vojt, Predrag
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2833
AB  - Flow measurement of low head turbines, with short intakes like bulb turbines is challenging since there is no “regular” cross-section with fully developed velocity profile. In most situations the flow data during field turbine acceptance tests are obtained using the index method, with flow coefficients transferred from physical model tests done in the laboratory. In the non-standard situations, with adverse flow conditions this may lead to unpredicted flow rate uncertainty. This paper presents the used methodology and results of flow measurement at inlets of two bulb turbines of Hydro Power Plant (HPP) Iron Gate 2 (Danube river). Turbines are Kaplan, with low head (2.5 – 12.5 m), 27 MW and maximal flow rate 420 m3/s.
Due to HPP’s disposition the inflow angle (in a “horizontal” plane and in respect to the turbine axis) can be up to 400. Even reverse flow directions in upper regions of cross-section can occur.  The movable 14.5x3.1 m steel frame, shaped to minimize flow disturbances was used at the intake of turbine, upstream of the trash rack, to traverse the inflow cross section 14.5x26 m. The 15 spherical 3D electromagnetic velocity meters capable of bi-directional measurements were mounted on the frame, while redundant measurement were made using 2 ADVs. Two measurement strategies were used: incremental with 18 profiles and 10 min averaging time at each profile and continuous using constant lifting speed of 0.05 m/s. Uncertainty assessment procedure yielded discharge measurement uncertainties over 1 % for incremental, and up to 5 % for continuous traversing.
PB  - International group for hydraulic efficiency measurement (IGHEM)
C3  - 13th International conference on hydraulic efficiency measurement, Grenoble, France
T1  - Flow measurement methodology for low head and short intake bulb turbines - Iron Gate 2 case
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2833
ER  - 

@conference{
author = "Prodanović, Dušan and Ivetić, Damjan and Milivojević, Nikola and Vojt, Predrag",
year = "2022",
abstract = "Flow measurement of low head turbines, with short intakes like bulb turbines is challenging since there is no “regular” cross-section with fully developed velocity profile. In most situations the flow data during field turbine acceptance tests are obtained using the index method, with flow coefficients transferred from physical model tests done in the laboratory. In the non-standard situations, with adverse flow conditions this may lead to unpredicted flow rate uncertainty. This paper presents the used methodology and results of flow measurement at inlets of two bulb turbines of Hydro Power Plant (HPP) Iron Gate 2 (Danube river). Turbines are Kaplan, with low head (2.5 – 12.5 m), 27 MW and maximal flow rate 420 m3/s.
Due to HPP’s disposition the inflow angle (in a “horizontal” plane and in respect to the turbine axis) can be up to 400. Even reverse flow directions in upper regions of cross-section can occur.  The movable 14.5x3.1 m steel frame, shaped to minimize flow disturbances was used at the intake of turbine, upstream of the trash rack, to traverse the inflow cross section 14.5x26 m. The 15 spherical 3D electromagnetic velocity meters capable of bi-directional measurements were mounted on the frame, while redundant measurement were made using 2 ADVs. Two measurement strategies were used: incremental with 18 profiles and 10 min averaging time at each profile and continuous using constant lifting speed of 0.05 m/s. Uncertainty assessment procedure yielded discharge measurement uncertainties over 1 % for incremental, and up to 5 % for continuous traversing.",
publisher = "International group for hydraulic efficiency measurement (IGHEM)",
journal = "13th International conference on hydraulic efficiency measurement, Grenoble, France",
title = "Flow measurement methodology for low head and short intake bulb turbines - Iron Gate 2 case",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2833"
}

Prodanović, D., Ivetić, D., Milivojević, N.,& Vojt, P.. (2022). Flow measurement methodology for low head and short intake bulb turbines - Iron Gate 2 case. in 13th International conference on hydraulic efficiency measurement, Grenoble, France
International group for hydraulic efficiency measurement (IGHEM)..
https://hdl.handle.net/21.15107/rcub_grafar_2833

Prodanović D, Ivetić D, Milivojević N, Vojt P. Flow measurement methodology for low head and short intake bulb turbines - Iron Gate 2 case. in 13th International conference on hydraulic efficiency measurement, Grenoble, France. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_2833 .

Prodanović, Dušan, Ivetić, Damjan, Milivojević, Nikola, Vojt, Predrag, "Flow measurement methodology for low head and short intake bulb turbines - Iron Gate 2 case" in 13th International conference on hydraulic efficiency measurement, Grenoble, France (2022),
https://hdl.handle.net/21.15107/rcub_grafar_2833 .

TY  - CONF
AU  - Ivetić, Damjan
AU  - Prodanović, Dušan
AU  - Vojt, Predrag
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2830
AB  - Za potrebe pouzdanije procene hidrauličke efikasnosti cevnih agregata na HE Đerdap 2, kao i unapređenja efikasnosti nakon revitalizacije agregata, projektovan je i primenjen inovativni sistem za posredno merenje protoka kroz jedan agregat. Merni sistem se može postaviti na ulazu u turbinu uzvodno od grube rešetke. Koristi se pristup Brzina – Proticajni presek, gde se polje brzina profiliše (meri) pomoću 15 novorazvijenih 3D elektromagnetnih (EM) sondi, horizontalno raspoređenih na čelični ram koji se podiže po visini proticajnog preseka. Čelični ram je opremljen i sa dva redudantna akustična Dopler senzora brzine (takođe mere sve tri komponente vektora brzine), merilima visine rama i dubine vode. Mogu se koristiti dva režima rada mernog sistema: inkrementalni (sporiji i pouzdaniji) i kontinualni (brži ali manje pouzdan). Budući da je merni sistem sinhronizovan sa lokalnim SCADA sistemom, u konačnoj obradi podataka i obračunu protoka, koriste se i odgovarajući podaci o radu turbine. Poseban izazov u proračunu protoka izvedenim sistemom predstavlja procena merne nesigurnosti (grešku ipak ne možemo znati jer nikad i ne poznajemo tačnu vrednost merne veličine). Kako bi se u proceni merne nesigurnosti, obuhvatile specifičnosti korišćene merne opreme (sa akcentom na 3D EM sonde), režima rada mernog sistema i hidrauličkih uslova na mernim mestima (koso dostrujavanje), razvijena je posebna procedura za proračun komponenata (doprinosa) i konačni obračun ukupne nesigurnosti izmerenog protoka na agregatima. Procedurom su obuhvaćeni doprinosi svih relevantnih veličina tokom trajanja merenja, postupka ekstrapolacije i interpolacije u obradi podataka, kao i integracije konačnog rasporeda brzina. Sam postupak procene merne nesigurnosti je integrisan i u namenski korisnički softver za obradu prikupljenih podataka. U ovom radu predstavljena je korišćena procedura za procenu merne nesigurnosti, kao i rezultati njene primene na konačnom broju izmerenih podataka. Analizirani su uticaji pojedinih komponenata mernih nesigurnosti kao i njihova promena u zavisnosti od korišćenog režima rada.
PB  - Društvo Metrologa
C3  - Kongres metrologa 2022
T1  - Procena merne nesigurnosti pri merenju protoka profilisanjem polja brzina
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2830
ER  - 

@conference{
author = "Ivetić, Damjan and Prodanović, Dušan and Vojt, Predrag",
year = "2022",
abstract = "Za potrebe pouzdanije procene hidrauličke efikasnosti cevnih agregata na HE Đerdap 2, kao i unapređenja efikasnosti nakon revitalizacije agregata, projektovan je i primenjen inovativni sistem za posredno merenje protoka kroz jedan agregat. Merni sistem se može postaviti na ulazu u turbinu uzvodno od grube rešetke. Koristi se pristup Brzina – Proticajni presek, gde se polje brzina profiliše (meri) pomoću 15 novorazvijenih 3D elektromagnetnih (EM) sondi, horizontalno raspoređenih na čelični ram koji se podiže po visini proticajnog preseka. Čelični ram je opremljen i sa dva redudantna akustična Dopler senzora brzine (takođe mere sve tri komponente vektora brzine), merilima visine rama i dubine vode. Mogu se koristiti dva režima rada mernog sistema: inkrementalni (sporiji i pouzdaniji) i kontinualni (brži ali manje pouzdan). Budući da je merni sistem sinhronizovan sa lokalnim SCADA sistemom, u konačnoj obradi podataka i obračunu protoka, koriste se i odgovarajući podaci o radu turbine. Poseban izazov u proračunu protoka izvedenim sistemom predstavlja procena merne nesigurnosti (grešku ipak ne možemo znati jer nikad i ne poznajemo tačnu vrednost merne veličine). Kako bi se u proceni merne nesigurnosti, obuhvatile specifičnosti korišćene merne opreme (sa akcentom na 3D EM sonde), režima rada mernog sistema i hidrauličkih uslova na mernim mestima (koso dostrujavanje), razvijena je posebna procedura za proračun komponenata (doprinosa) i konačni obračun ukupne nesigurnosti izmerenog protoka na agregatima. Procedurom su obuhvaćeni doprinosi svih relevantnih veličina tokom trajanja merenja, postupka ekstrapolacije i interpolacije u obradi podataka, kao i integracije konačnog rasporeda brzina. Sam postupak procene merne nesigurnosti je integrisan i u namenski korisnički softver za obradu prikupljenih podataka. U ovom radu predstavljena je korišćena procedura za procenu merne nesigurnosti, kao i rezultati njene primene na konačnom broju izmerenih podataka. Analizirani su uticaji pojedinih komponenata mernih nesigurnosti kao i njihova promena u zavisnosti od korišćenog režima rada.",
publisher = "Društvo Metrologa",
journal = "Kongres metrologa 2022",
title = "Procena merne nesigurnosti pri merenju protoka profilisanjem polja brzina",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2830"
}

Ivetić, D., Prodanović, D.,& Vojt, P.. (2022). Procena merne nesigurnosti pri merenju protoka profilisanjem polja brzina. in Kongres metrologa 2022
Društvo Metrologa..
https://hdl.handle.net/21.15107/rcub_grafar_2830

Ivetić D, Prodanović D, Vojt P. Procena merne nesigurnosti pri merenju protoka profilisanjem polja brzina. in Kongres metrologa 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_2830 .

Ivetić, Damjan, Prodanović, Dušan, Vojt, Predrag, "Procena merne nesigurnosti pri merenju protoka profilisanjem polja brzina" in Kongres metrologa 2022 (2022),
https://hdl.handle.net/21.15107/rcub_grafar_2830 .

TY  - CONF
AU  - Vojt, Predrag
AU  - Prodanović, Dušan
AU  - Ivetić, Damjan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2829
AB  - Druga najvažnija veličina u hidrotehničkoj praksi je protok vode i sa njom direktno povezana brzina vode (prva je, svakako, nivo/dubina odnosno, pritisak vode). Brzina vode se uglavnom meri posredno, korišćenjem nekog od odgovarajućih pretvarača, koje treba redovno kalibrisati. U sklopu hidrauličke laboratorije Instituta za vodoprivredu „Jaroslav Černi“ (IJČ) nalazi se 120 m dug kanal za kalibrisanje sondi za merenje brzine vode apsolutnom metodom, prema ISO 3445 standardu: kroz vodu koja miruje se zadatom brzinom vozi sonda, a brzina se određuje preko pređenog puta u jedinici vremena. Za potrebe analize uticaja kosog dostrujavanje vode na agregate HE Đerdap 2, projektovan je sistem za merenje brzine vode, i posredno protoka, sa elektromagnetnim (EM) sondama koje mogu istovremeno da mere sve tri komponente brzina (3D). Merni sistem se sadrži 15 3D EM sondi postavljenih horizontalno na čelični ram širine 14,5 m, koji se kontinualno, ili postepeno, podiže celom visinom proticajnog preseka (27 m). Tokom konstruisanja 3D EM sondi, na kanalu Instituta IJČ su rađena detaljna ispitivanja, kao i finalna kalibracija prostorne osetljivosti. U sklopu kalibracije samih sondi, ispitivan je i uticaj nosećeg rama na merenja. Kako je ram za terenske potrebe prevelik, izrađen je parcijalni model rama u razmeri 1:1 sa kojim su izvršena ispitivanja u IJČ kanalu. Sva merenja su sinhronizovana sa mernim sistemom po MODBUS protokolu. Merena je referentna brzina kolica preko enkodera sa točkom na tvrdoj podlozi i pokazivanje brzina 3D EM sondi. Ispitani su različiti napadni uglovi, gde je položaj sonde postavljen preko mehaničkog graničnika. U ovom radu je predstavljena procedura i detaljno su opisani postupci kalibracije i dodatnih ispitivanja 3D EM sondi sa modelom rama. Takođe, kako je kalibrisano 20 3D EM sondi, prikazani su rezultati testova i performanse istih pri različitim napadnim uglovima.
PB  - Društvo Metrologa
C3  - Kongres metrologa 2022
T1  - Kalibracija 3D elektromagnetnih merila brzine vode
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2829
ER  - 

@conference{
author = "Vojt, Predrag and Prodanović, Dušan and Ivetić, Damjan",
year = "2022",
abstract = "Druga najvažnija veličina u hidrotehničkoj praksi je protok vode i sa njom direktno povezana brzina vode (prva je, svakako, nivo/dubina odnosno, pritisak vode). Brzina vode se uglavnom meri posredno, korišćenjem nekog od odgovarajućih pretvarača, koje treba redovno kalibrisati. U sklopu hidrauličke laboratorije Instituta za vodoprivredu „Jaroslav Černi“ (IJČ) nalazi se 120 m dug kanal za kalibrisanje sondi za merenje brzine vode apsolutnom metodom, prema ISO 3445 standardu: kroz vodu koja miruje se zadatom brzinom vozi sonda, a brzina se određuje preko pređenog puta u jedinici vremena. Za potrebe analize uticaja kosog dostrujavanje vode na agregate HE Đerdap 2, projektovan je sistem za merenje brzine vode, i posredno protoka, sa elektromagnetnim (EM) sondama koje mogu istovremeno da mere sve tri komponente brzina (3D). Merni sistem se sadrži 15 3D EM sondi postavljenih horizontalno na čelični ram širine 14,5 m, koji se kontinualno, ili postepeno, podiže celom visinom proticajnog preseka (27 m). Tokom konstruisanja 3D EM sondi, na kanalu Instituta IJČ su rađena detaljna ispitivanja, kao i finalna kalibracija prostorne osetljivosti. U sklopu kalibracije samih sondi, ispitivan je i uticaj nosećeg rama na merenja. Kako je ram za terenske potrebe prevelik, izrađen je parcijalni model rama u razmeri 1:1 sa kojim su izvršena ispitivanja u IJČ kanalu. Sva merenja su sinhronizovana sa mernim sistemom po MODBUS protokolu. Merena je referentna brzina kolica preko enkodera sa točkom na tvrdoj podlozi i pokazivanje brzina 3D EM sondi. Ispitani su različiti napadni uglovi, gde je položaj sonde postavljen preko mehaničkog graničnika. U ovom radu je predstavljena procedura i detaljno su opisani postupci kalibracije i dodatnih ispitivanja 3D EM sondi sa modelom rama. Takođe, kako je kalibrisano 20 3D EM sondi, prikazani su rezultati testova i performanse istih pri različitim napadnim uglovima.",
publisher = "Društvo Metrologa",
journal = "Kongres metrologa 2022",
title = "Kalibracija 3D elektromagnetnih merila brzine vode",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2829"
}

Vojt, P., Prodanović, D.,& Ivetić, D.. (2022). Kalibracija 3D elektromagnetnih merila brzine vode. in Kongres metrologa 2022
Društvo Metrologa..
https://hdl.handle.net/21.15107/rcub_grafar_2829

Vojt P, Prodanović D, Ivetić D. Kalibracija 3D elektromagnetnih merila brzine vode. in Kongres metrologa 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_2829 .

Vojt, Predrag, Prodanović, Dušan, Ivetić, Damjan, "Kalibracija 3D elektromagnetnih merila brzine vode" in Kongres metrologa 2022 (2022),
https://hdl.handle.net/21.15107/rcub_grafar_2829 .

TY  - JOUR
AU  - Rakić, Dragan
AU  - Stojković, Milan
AU  - Ivetić, Damjan
AU  - Živković, Miroslav
AU  - Milivojević, Nikola
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2672
AB  - The paper presents a functionality investigation of the key dam elements based on finite element analysis. A detailed analysis of filtration processes, dam strength, and the surrounding rock mass was conducted. Dam elements whose potential damage could jeopardize the normal functioning of the embankment dam have been identified. A particular emphasis was placed on the analysis of dam elements that have been identified as weak points. A numerical analysis of the impact of individual grout curtain zone failure on leakage under the dam body, a strength analysis of the overflow section, as well as the analysis of the slope stability that can compromise the functioning of the spillway have been performed. To analyze the partial stability of individual structural elements, a new measure of local stability was introduced as the remaining load-bearing capacity. As a case study, the Zavoj dam, which is a part of the Pirot reservoir system in the Republic of Serbia, was used. Investigation revealed that local damage to the grout curtain will not significantly increase leakage under the dam body, the overflow section is one of the most robust elements of the dam, but the slope above the spillway can compromise the functioning of the overflow and thus the safety of the entire dam. Based on the analysis of the results of the remaining load-bearing capacity, the dependence of the spillway capacity on earthquake intensity has been defined. The established relationship represents a surrogate model for further assessment of dynamic resilience of the complex multipurpose reservoir system, within the scope of the advanced reservoir system management.
PB  - MDPI
T2  - Applied sciences MDPI
T1  - Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System
VL  - 12(2)
DO  - 10.3390/app12020558
ER  - 

@article{
author = "Rakić, Dragan and Stojković, Milan and Ivetić, Damjan and Živković, Miroslav and Milivojević, Nikola",
year = "2022",
abstract = "The paper presents a functionality investigation of the key dam elements based on finite element analysis. A detailed analysis of filtration processes, dam strength, and the surrounding rock mass was conducted. Dam elements whose potential damage could jeopardize the normal functioning of the embankment dam have been identified. A particular emphasis was placed on the analysis of dam elements that have been identified as weak points. A numerical analysis of the impact of individual grout curtain zone failure on leakage under the dam body, a strength analysis of the overflow section, as well as the analysis of the slope stability that can compromise the functioning of the spillway have been performed. To analyze the partial stability of individual structural elements, a new measure of local stability was introduced as the remaining load-bearing capacity. As a case study, the Zavoj dam, which is a part of the Pirot reservoir system in the Republic of Serbia, was used. Investigation revealed that local damage to the grout curtain will not significantly increase leakage under the dam body, the overflow section is one of the most robust elements of the dam, but the slope above the spillway can compromise the functioning of the overflow and thus the safety of the entire dam. Based on the analysis of the results of the remaining load-bearing capacity, the dependence of the spillway capacity on earthquake intensity has been defined. The established relationship represents a surrogate model for further assessment of dynamic resilience of the complex multipurpose reservoir system, within the scope of the advanced reservoir system management.",
publisher = "MDPI",
journal = "Applied sciences MDPI",
title = "Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System",
volume = "12(2)",
doi = "10.3390/app12020558"
}

Rakić, D., Stojković, M., Ivetić, D., Živković, M.,& Milivojević, N.. (2022). Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System. in Applied sciences MDPI
MDPI., 12(2).
https://doi.org/10.3390/app12020558

Rakić D, Stojković M, Ivetić D, Živković M, Milivojević N. Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System. in Applied sciences MDPI. 2022;12(2).
doi:10.3390/app12020558 .

Rakić, Dragan, Stojković, Milan, Ivetić, Damjan, Živković, Miroslav, Milivojević, Nikola, "Failure Assessment of Embankment Dam Elements: Case Study of the Pirot Reservoir System" in Applied sciences MDPI, 12(2) (2022),
https://doi.org/10.3390/app12020558 . .

Prodanović, D., Ivetić, D., Milivojević, N., Vojt, P.,& Cvitkovac, M.. (2021). Sistem za merenje protoka na ulazima u cevne turbine na bazi elektromagnetnih senzora brzine. in Investitor: Elektroprivreda Srbije.
https://hdl.handle.net/21.15107/rcub_grafar_3319

Prodanović D, Ivetić D, Milivojević N, Vojt P, Cvitkovac M. Sistem za merenje protoka na ulazima u cevne turbine na bazi elektromagnetnih senzora brzine. in Investitor: Elektroprivreda Srbije. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_3319 .

Prodanović, Dušan, Ivetić, Damjan, Milivojević, Nikola, Vojt, Predrag, Cvitkovac, Mile, "Sistem za merenje protoka na ulazima u cevne turbine na bazi elektromagnetnih senzora brzine" in Investitor: Elektroprivreda Srbije (2021),
https://hdl.handle.net/21.15107/rcub_grafar_3319 .

TY  - JOUR
AU  - Vasilić, Željko
AU  - Ivetić, Damjan
AU  - Stanić, Miloš
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3211
AB  - U ovom radu je predstavljena metodologija za podršku odlučivanju u postupku sektorizacije vodovodne distributivne mreže na osnovne zone bilansiranja. Obzirom da sektorizacija mreže nije jednoznačna, razvijena metodologija je implementirana u hidroinformacioni alat koji omogućava sagledavanje većeg skupa mogućih rešenja sektorizacije. Metodologija za sektorizaciju je 
zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koji omogućava 
identifikaciju klastera u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijenog hidroinformacionog alata je obezbeđena kroz implementaciju sledećih celina: 1) algoritma za automatsku sektorizaciju mreže na klastere, 2) efikasnog modela za hidrauličke simulacije i 3) višekriterijumske optimizacije. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Na ovaj način se donosiocima odluka koji upravljaju komunalnim preduzećima omogućava olakšano planiranje mera i potencijalnih intervencija na mreži u cilju smanjenja gubitaka u sistemu, kao i sagledavanje efekata tih mera. Dodatno je omogućeno objedinjenje osnovnih kriterijuma sektorizacije (veličina zone) sa lokalnim kriterijumima (inženjerskim i hidrauličkim) karakterističnim za predmetnu vodovodnu mrežu koja se analizira. Primena opisane metodologije je ilustrovana na konkretnom primeru vodovodne distributivne mreže naseljenog mesta u Holandiji.
AB  - This paper presents decision support methodology for sectorization of water distribution 
networks (WDNs) into district meter areas (DMAs). Considering that complexity of the real life WDNs
results in many different alternatives in which network sectorization into DMAs can be done, presented 
methodology is implemented into comprehensive hydroinformatics tool which allow end-user to 
investigate broad set of feasible sectorization solutions. Sectorization algorithm used in this researh 
utilizes newly developed Uniformity Index which drives the sectorization process and identifies clusters 
in the network with uniform demand. The efficiency, usability and succesufull application of the 
developed hydroinformatics tool is ensured through the implementation of the following: 1) algorithm 
for automatic sectorization of the network into clusters, 2) efficient model for hydraulic simulations and 
3) multicriteria optimization. Least investment for field implementation and maintaining the same level 
of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of 
preferable solution. This enables decision-makers easier planning of measures and potential 
interventions in the water distribution network in order to reduce losses in the system, as well as to
assess the potential impacts of those measures. Additionaly, it is possible to combine general 
sectorization criteria (DMA size) with local criteria (engineering and hydraulic), specific to the water 
distribution network being analyzed. Presented methodology is applied on a real-sized WDN of a small 
area in Netherlands.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
T2  - Voda i sanitarna tehnika
T1  - Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja
T1  - Decision support methodology for sectorization of water distribution networks into district meter areas
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3211
ER  - 

@article{
author = "Vasilić, Željko and Ivetić, Damjan and Stanić, Miloš",
year = "2021",
abstract = "U ovom radu je predstavljena metodologija za podršku odlučivanju u postupku sektorizacije vodovodne distributivne mreže na osnovne zone bilansiranja. Obzirom da sektorizacija mreže nije jednoznačna, razvijena metodologija je implementirana u hidroinformacioni alat koji omogućava sagledavanje većeg skupa mogućih rešenja sektorizacije. Metodologija za sektorizaciju je 
zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koji omogućava 
identifikaciju klastera u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijenog hidroinformacionog alata je obezbeđena kroz implementaciju sledećih celina: 1) algoritma za automatsku sektorizaciju mreže na klastere, 2) efikasnog modela za hidrauličke simulacije i 3) višekriterijumske optimizacije. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Na ovaj način se donosiocima odluka koji upravljaju komunalnim preduzećima omogućava olakšano planiranje mera i potencijalnih intervencija na mreži u cilju smanjenja gubitaka u sistemu, kao i sagledavanje efekata tih mera. Dodatno je omogućeno objedinjenje osnovnih kriterijuma sektorizacije (veličina zone) sa lokalnim kriterijumima (inženjerskim i hidrauličkim) karakterističnim za predmetnu vodovodnu mrežu koja se analizira. Primena opisane metodologije je ilustrovana na konkretnom primeru vodovodne distributivne mreže naseljenog mesta u Holandiji., This paper presents decision support methodology for sectorization of water distribution 
networks (WDNs) into district meter areas (DMAs). Considering that complexity of the real life WDNs
results in many different alternatives in which network sectorization into DMAs can be done, presented 
methodology is implemented into comprehensive hydroinformatics tool which allow end-user to 
investigate broad set of feasible sectorization solutions. Sectorization algorithm used in this researh 
utilizes newly developed Uniformity Index which drives the sectorization process and identifies clusters 
in the network with uniform demand. The efficiency, usability and succesufull application of the 
developed hydroinformatics tool is ensured through the implementation of the following: 1) algorithm 
for automatic sectorization of the network into clusters, 2) efficient model for hydraulic simulations and 
3) multicriteria optimization. Least investment for field implementation and maintaining the same level 
of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of 
preferable solution. This enables decision-makers easier planning of measures and potential 
interventions in the water distribution network in order to reduce losses in the system, as well as to
assess the potential impacts of those measures. Additionaly, it is possible to combine general 
sectorization criteria (DMA size) with local criteria (engineering and hydraulic), specific to the water 
distribution network being analyzed. Presented methodology is applied on a real-sized WDN of a small 
area in Netherlands.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Voda i sanitarna tehnika",
title = "Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja, Decision support methodology for sectorization of water distribution networks into district meter areas",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3211"
}

Vasilić, Ž., Ivetić, D.,& Stanić, M.. (2021). Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja. in Voda i sanitarna tehnika
Udruženje za tehnologijiu vode i sanitarno inženjerstvo..
https://hdl.handle.net/21.15107/rcub_grafar_3211

Vasilić Ž, Ivetić D, Stanić M. Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja. in Voda i sanitarna tehnika. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_3211 .

Vasilić, Željko, Ivetić, Damjan, Stanić, Miloš, "Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja" in Voda i sanitarna tehnika (2021),
https://hdl.handle.net/21.15107/rcub_grafar_3211 .

TY  - CONF
AU  - Rosić, Nikola
AU  - Ivetić, Damjan
AU  - Jaćimović, Nenad
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3210
AB  - Jedan od pristupa za redukovanje štetnog dejstvo talasa usled vetra na obalu i objekte u, i na vodi, zasniva se na izgradnji zaštitnih građevina u priobalju. Izgradnjom ovakvih građevina omogućava se delimično, ili potpuno (odbijanje),umanjenje amplitude i energije dolaznog talasa. U radu se predstavljaju mogućnosti SPH (Smoothed Particle Hydrodynamics) numeričkog modela, implementiranog u programskom kodu DualSPHysics, u projektovanju građevina za smanjenje visine talasa. Prikazani su rezultati primene SPH modela strujanja na osnovu kojih je određena konfiguracija specijalne vodopropusne konstrukcije koja se sastoji iz vertikalnog niza odbojnika oslonjenih na šipove. U radu se daje poseban osvrt na izbor parametara računskog modela.
PB  - Srpsko društvo za hidraulička istraživanja i Srpsko društvo za hidrologiju
C3  - 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021
T1  - Primena SPH modela strujanja u analizi transformacija talasa u  otvorenim tokovima
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3210
ER  - 

@conference{
author = "Rosić, Nikola and Ivetić, Damjan and Jaćimović, Nenad",
year = "2021",
abstract = "Jedan od pristupa za redukovanje štetnog dejstvo talasa usled vetra na obalu i objekte u, i na vodi, zasniva se na izgradnji zaštitnih građevina u priobalju. Izgradnjom ovakvih građevina omogućava se delimično, ili potpuno (odbijanje),umanjenje amplitude i energije dolaznog talasa. U radu se predstavljaju mogućnosti SPH (Smoothed Particle Hydrodynamics) numeričkog modela, implementiranog u programskom kodu DualSPHysics, u projektovanju građevina za smanjenje visine talasa. Prikazani su rezultati primene SPH modela strujanja na osnovu kojih je određena konfiguracija specijalne vodopropusne konstrukcije koja se sastoji iz vertikalnog niza odbojnika oslonjenih na šipove. U radu se daje poseban osvrt na izbor parametara računskog modela.",
publisher = "Srpsko društvo za hidraulička istraživanja i Srpsko društvo za hidrologiju",
journal = "19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021",
title = "Primena SPH modela strujanja u analizi transformacija talasa u  otvorenim tokovima",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3210"
}

Rosić, N., Ivetić, D.,& Jaćimović, N.. (2021). Primena SPH modela strujanja u analizi transformacija talasa u  otvorenim tokovima. in 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021
Srpsko društvo za hidraulička istraživanja i Srpsko društvo za hidrologiju..
https://hdl.handle.net/21.15107/rcub_grafar_3210

Rosić N, Ivetić D, Jaćimović N. Primena SPH modela strujanja u analizi transformacija talasa u  otvorenim tokovima. in 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_3210 .

Rosić, Nikola, Ivetić, Damjan, Jaćimović, Nenad, "Primena SPH modela strujanja u analizi transformacija talasa u  otvorenim tokovima" in 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021 (2021),
https://hdl.handle.net/21.15107/rcub_grafar_3210 .

TY  - CONF
AU  - Rosić, Nikola
AU  - Ivetić, Damjan
AU  - Jaćimović, Nenad
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3209
AB  - U radu se prezentuju rezultati analize uticaja građevine u rečnom koritu na režim talasa 
usled dejstva vetra. Za dve varijante poprečnih građevina u zoni obale Dunava kod Donjeg Milanovca, prikazani u računski postupci određivanja merodavne visine talasa i uticaja građevina na transformaciju merodavnih talasa, sve u cilju povećanja stepena zaštite postojeće obale. Takođe, izvršena je i analiza uticaja građevina na propusnost korita za vodu i nanos. U predstavljenim analizama uticaja građevina na dejstvo talasa korišćeni su računski modeli STWAVE (Steady state spectral wave) i SPH (Smoothed particle hydrodynamics) dok je u analizi uticaja građevina na propusnost korita korišćen model ravanskog strujanja implementiran u programskom kodu Telemac 2D.
PB  - Srpsko društvo za hidraulička istraživanja i Srpsko društvo za hidrologiju
C3  - 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021
T1  - Analiza uticaja poprečne građevine u rečnom koritu na dejstvo  talasa usled vetra
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3209
ER  - 

@conference{
author = "Rosić, Nikola and Ivetić, Damjan and Jaćimović, Nenad",
year = "2021",
abstract = "U radu se prezentuju rezultati analize uticaja građevine u rečnom koritu na režim talasa 
usled dejstva vetra. Za dve varijante poprečnih građevina u zoni obale Dunava kod Donjeg Milanovca, prikazani u računski postupci određivanja merodavne visine talasa i uticaja građevina na transformaciju merodavnih talasa, sve u cilju povećanja stepena zaštite postojeće obale. Takođe, izvršena je i analiza uticaja građevina na propusnost korita za vodu i nanos. U predstavljenim analizama uticaja građevina na dejstvo talasa korišćeni su računski modeli STWAVE (Steady state spectral wave) i SPH (Smoothed particle hydrodynamics) dok je u analizi uticaja građevina na propusnost korita korišćen model ravanskog strujanja implementiran u programskom kodu Telemac 2D.",
publisher = "Srpsko društvo za hidraulička istraživanja i Srpsko društvo za hidrologiju",
journal = "19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021",
title = "Analiza uticaja poprečne građevine u rečnom koritu na dejstvo  talasa usled vetra",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3209"
}

Rosić, N., Ivetić, D.,& Jaćimović, N.. (2021). Analiza uticaja poprečne građevine u rečnom koritu na dejstvo  talasa usled vetra. in 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021
Srpsko društvo za hidraulička istraživanja i Srpsko društvo za hidrologiju..
https://hdl.handle.net/21.15107/rcub_grafar_3209

Rosić N, Ivetić D, Jaćimović N. Analiza uticaja poprečne građevine u rečnom koritu na dejstvo  talasa usled vetra. in 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_3209 .

Rosić, Nikola, Ivetić, Damjan, Jaćimović, Nenad, "Analiza uticaja poprečne građevine u rečnom koritu na dejstvo  talasa usled vetra" in 19. Savetovanje SDHI i SDH, Beograd, Srbija, 2021 (2021),
https://hdl.handle.net/21.15107/rcub_grafar_3209 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Ivetić, Damjan
AU  - Stanić, Miloš
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2503
AB  - Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija optimalnog rasporeda izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. U ovom radu je prikazana metodologija za sektorizaciju zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koja omogućava identifikaciju klastera u mreži ujednačenih po potrošnji. Optimizacioni algoritam, podržan inženjerskom logikom, je korišćen za određivanje položaja kontrolnih uređaja (zatvarača i merača protoka) na granicama prethodno identifikovanih klustera, čime se uspostavljaju zone bilansiranja.  Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Rezultati testiranja metodologije na realnom primeru vodovodne mreže, sa primenom lokalnih kriterijuma, potvrđuju da može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije.
AB  - Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is a proven measure for proactive leakage and pressure control. Sectorization of WDN into an optimal system of DMAs is a hard task to achieve, especially for the existing and continuously operating WDN. Beside general criteria (e.g. DMA size, network length), sectorisation process should be driven by the case-specific criteria such as required number of feeds, fire flow regulations etc. This paper presents sectorization algorithm that utilizes newly developed uniformity index which drives the sectorization process and identifies clusters in the network with uniform demand. Engineering heuristic is coupled with optimization algorithm in order to search the broader range of feasible solutions and identify (near)optimal positions of flow-meters an isolation valves on clusters’ boundary edges, converting them to DMAs. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of preferable solution. Testing algorithm on a part of real-life WDN, subjected to the specific local design criteria, proved it can be a valuable decision support tool for sectorization process.
PB  - Građevinski fakultet Univerziteta u Beogradu
C3  - 19. Naučno savetovanje SDHI i SDH
T1  - Višekriterijumska analiza sektorizacije vodovodne mreže
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2503
ER  - 

@conference{
author = "Vasilić, Željko and Ivetić, Damjan and Stanić, Miloš",
year = "2021",
abstract = "Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija optimalnog rasporeda izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. U ovom radu je prikazana metodologija za sektorizaciju zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koja omogućava identifikaciju klastera u mreži ujednačenih po potrošnji. Optimizacioni algoritam, podržan inženjerskom logikom, je korišćen za određivanje položaja kontrolnih uređaja (zatvarača i merača protoka) na granicama prethodno identifikovanih klustera, čime se uspostavljaju zone bilansiranja.  Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Rezultati testiranja metodologije na realnom primeru vodovodne mreže, sa primenom lokalnih kriterijuma, potvrđuju da može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije., Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is a proven measure for proactive leakage and pressure control. Sectorization of WDN into an optimal system of DMAs is a hard task to achieve, especially for the existing and continuously operating WDN. Beside general criteria (e.g. DMA size, network length), sectorisation process should be driven by the case-specific criteria such as required number of feeds, fire flow regulations etc. This paper presents sectorization algorithm that utilizes newly developed uniformity index which drives the sectorization process and identifies clusters in the network with uniform demand. Engineering heuristic is coupled with optimization algorithm in order to search the broader range of feasible solutions and identify (near)optimal positions of flow-meters an isolation valves on clusters’ boundary edges, converting them to DMAs. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of preferable solution. Testing algorithm on a part of real-life WDN, subjected to the specific local design criteria, proved it can be a valuable decision support tool for sectorization process.",
publisher = "Građevinski fakultet Univerziteta u Beogradu",
journal = "19. Naučno savetovanje SDHI i SDH",
title = "Višekriterijumska analiza sektorizacije vodovodne mreže",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2503"
}

Vasilić, Ž., Ivetić, D.,& Stanić, M.. (2021). Višekriterijumska analiza sektorizacije vodovodne mreže. in 19. Naučno savetovanje SDHI i SDH
Građevinski fakultet Univerziteta u Beogradu..
https://hdl.handle.net/21.15107/rcub_grafar_2503

Vasilić Ž, Ivetić D, Stanić M. Višekriterijumska analiza sektorizacije vodovodne mreže. in 19. Naučno savetovanje SDHI i SDH. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2503 .

Vasilić, Željko, Ivetić, Damjan, Stanić, Miloš, "Višekriterijumska analiza sektorizacije vodovodne mreže" in 19. Naučno savetovanje SDHI i SDH (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2503 .

TY  - CHAP
AU  - Larrarte, Frédérique
AU  - Lepot, Mathieu
AU  - Clemens-Meyer, Francois
AU  - Bertrand-Krajewski, Jean-Luc
AU  - Ivetić, Damjan
AU  - Prodanović, Dušan
AU  - Stageman, Bram
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2510
AB  - The knowledge of water levels and discharges in urban drainage and stormwater management (UDSM) systems is of key importance to understand their functioning and processes, to evaluate their performance, and to provide data for modelling. In this chapter, devoted mainly to underground combined and separate sewer pipe systems, various methods and technologies are described and discussed. After an introduction to important aspects to deal with when measuring discharges in sewer systems, the following parts are presented successively: (i) measurement of water level with rulers, and pressure, ultrasonic and radar sensors, (ii) measurement of flow velocity with ultrasonic, Doppler, velocity profiler, free surface, and electromagnetic sensors, (iii) direct measurement of discharge with pre-calibrated devices, physical scale models, computational fluid dynamics modelling and use of pumping stations, and (iv) detection and/or measurement of infiltration into and exfiltration from sewers, with flow or pressure measurements, tracer experiments, distributed temperature sensing and geophysical methods.
PB  - IWA Publishing
T2  - Metrology in Urban Drainage and Stormwater Management: Plug & Pray
T1  - Water level and discharge measurements in: Metrology in Urban Drainage and Stormwater Management: Plug and Pray
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2510
ER  - 

@inbook{
author = "Larrarte, Frédérique and Lepot, Mathieu and Clemens-Meyer, Francois and Bertrand-Krajewski, Jean-Luc and Ivetić, Damjan and Prodanović, Dušan and Stageman, Bram",
year = "2021",
abstract = "The knowledge of water levels and discharges in urban drainage and stormwater management (UDSM) systems is of key importance to understand their functioning and processes, to evaluate their performance, and to provide data for modelling. In this chapter, devoted mainly to underground combined and separate sewer pipe systems, various methods and technologies are described and discussed. After an introduction to important aspects to deal with when measuring discharges in sewer systems, the following parts are presented successively: (i) measurement of water level with rulers, and pressure, ultrasonic and radar sensors, (ii) measurement of flow velocity with ultrasonic, Doppler, velocity profiler, free surface, and electromagnetic sensors, (iii) direct measurement of discharge with pre-calibrated devices, physical scale models, computational fluid dynamics modelling and use of pumping stations, and (iv) detection and/or measurement of infiltration into and exfiltration from sewers, with flow or pressure measurements, tracer experiments, distributed temperature sensing and geophysical methods.",
publisher = "IWA Publishing",
journal = "Metrology in Urban Drainage and Stormwater Management: Plug & Pray",
booktitle = "Water level and discharge measurements in: Metrology in Urban Drainage and Stormwater Management: Plug and Pray",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2510"
}

Larrarte, F., Lepot, M., Clemens-Meyer, F., Bertrand-Krajewski, J., Ivetić, D., Prodanović, D.,& Stageman, B.. (2021). Water level and discharge measurements in: Metrology in Urban Drainage and Stormwater Management: Plug and Pray. in Metrology in Urban Drainage and Stormwater Management: Plug & Pray
IWA Publishing..
https://hdl.handle.net/21.15107/rcub_grafar_2510

Larrarte F, Lepot M, Clemens-Meyer F, Bertrand-Krajewski J, Ivetić D, Prodanović D, Stageman B. Water level and discharge measurements in: Metrology in Urban Drainage and Stormwater Management: Plug and Pray. in Metrology in Urban Drainage and Stormwater Management: Plug & Pray. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2510 .

Larrarte, Frédérique, Lepot, Mathieu, Clemens-Meyer, Francois, Bertrand-Krajewski, Jean-Luc, Ivetić, Damjan, Prodanović, Dušan, Stageman, Bram, "Water level and discharge measurements in: Metrology in Urban Drainage and Stormwater Management: Plug and Pray" in Metrology in Urban Drainage and Stormwater Management: Plug & Pray (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2510 .

TY  - JOUR
AU  - Ignjatović, Lazar
AU  - Stojković, Milan
AU  - Ivetić, Damjan
AU  - Milašinović, Miloš
AU  - Milivojević, Nikola
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2454
AB  - The objective of this research is to introduce a novel framework to quantify the risk of
the reservoir system outside the design envelope, taking into account the risks related to floodprotection and hydro-energy generation under unfavourable reservoir element conditions (system
element failures) and hazardous situations within the environment (flood event). To analyze water
system behavior in adverse conditions, a system analysis approach is used, which is founded
upon the system dynamics model with a causal loop. The capability of the system in performing
the intended functionality can be quantified using the traditional static measures like reliability,
resilience and vulnerability, or dynamic resilience. In this paper, a novel method for the assessment
of a multi-parameter dynamic resilience is introduced. The multi-parameter dynamic resilience
envelops the hydropower and flood-protection resilience, as two opposing demands in the reservoir
operation regime. A case study of a Pirot reservoir, in the Republic of Serbia, is used. To estimate
the multi -parameter dynamic resilience of the Pirot reservoir system, a hydrological model, and a
system dynamic simulation model with an inner control loop, is developed. The inner control loop
provides the relation between the hydropower generation and flood-protection. The hydrological
model is calibrated and generated climate inputs are used to simulate the long-term flow sequences.
The most severe flood event period is extracted to be used as the input for the system dynamics
simulations. The system performance for five different scenarios with various multi failure events
(e.g., generator failure, segment gate failure on the spillway, leakage from reservoir and water supply
tunnel failure due to earthquake) are presented using the novel concept of the explicit modeling of the
component failures through element functionality indicators. Based on the outputs from the system
dynamics model, system performance is determined and, later, hydropower and flood protection
resilience. Then, multi-parameter dynamic resilience of the Pirot reservoir system is estimated and
compared with the traditional static measures (reliability). Discrepancy between the drop between
multi-parameter resilience (from 0.851 to 0.935) and reliability (from 0.993 to 1) shows that static
measure underestimates the risk to the water system. Thus, the results from this research show that
multi-parameter dynamic resilience, as an indicator, can provide additional insight compared to the
traditional static measures, leading to identification of the vulnerable elements of a complex reservoir system. Additionally, it is shown that the proposed explicit modeling of system components failure
can be used to reflect the drop of the overall system functionality
PB  - MDPI
T2  - Water
T1  - Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System
IS  - 22
VL  - 13
DO  - 10.3390/w13223157
ER  - 

@article{
author = "Ignjatović, Lazar and Stojković, Milan and Ivetić, Damjan and Milašinović, Miloš and Milivojević, Nikola",
year = "2021",
abstract = "The objective of this research is to introduce a novel framework to quantify the risk of
the reservoir system outside the design envelope, taking into account the risks related to floodprotection and hydro-energy generation under unfavourable reservoir element conditions (system
element failures) and hazardous situations within the environment (flood event). To analyze water
system behavior in adverse conditions, a system analysis approach is used, which is founded
upon the system dynamics model with a causal loop. The capability of the system in performing
the intended functionality can be quantified using the traditional static measures like reliability,
resilience and vulnerability, or dynamic resilience. In this paper, a novel method for the assessment
of a multi-parameter dynamic resilience is introduced. The multi-parameter dynamic resilience
envelops the hydropower and flood-protection resilience, as two opposing demands in the reservoir
operation regime. A case study of a Pirot reservoir, in the Republic of Serbia, is used. To estimate
the multi -parameter dynamic resilience of the Pirot reservoir system, a hydrological model, and a
system dynamic simulation model with an inner control loop, is developed. The inner control loop
provides the relation between the hydropower generation and flood-protection. The hydrological
model is calibrated and generated climate inputs are used to simulate the long-term flow sequences.
The most severe flood event period is extracted to be used as the input for the system dynamics
simulations. The system performance for five different scenarios with various multi failure events
(e.g., generator failure, segment gate failure on the spillway, leakage from reservoir and water supply
tunnel failure due to earthquake) are presented using the novel concept of the explicit modeling of the
component failures through element functionality indicators. Based on the outputs from the system
dynamics model, system performance is determined and, later, hydropower and flood protection
resilience. Then, multi-parameter dynamic resilience of the Pirot reservoir system is estimated and
compared with the traditional static measures (reliability). Discrepancy between the drop between
multi-parameter resilience (from 0.851 to 0.935) and reliability (from 0.993 to 1) shows that static
measure underestimates the risk to the water system. Thus, the results from this research show that
multi-parameter dynamic resilience, as an indicator, can provide additional insight compared to the
traditional static measures, leading to identification of the vulnerable elements of a complex reservoir system. Additionally, it is shown that the proposed explicit modeling of system components failure
can be used to reflect the drop of the overall system functionality",
publisher = "MDPI",
journal = "Water",
title = "Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System",
number = "22",
volume = "13",
doi = "10.3390/w13223157"
}

Ignjatović, L., Stojković, M., Ivetić, D., Milašinović, M.,& Milivojević, N.. (2021). Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System. in Water
MDPI., 13(22).
https://doi.org/10.3390/w13223157

Ignjatović L, Stojković M, Ivetić D, Milašinović M, Milivojević N. Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System. in Water. 2021;13(22).
doi:10.3390/w13223157 .

Ignjatović, Lazar, Stojković, Milan, Ivetić, Damjan, Milašinović, Miloš, Milivojević, Nikola, "Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System" in Water, 13, no. 22 (2021),
https://doi.org/10.3390/w13223157 . .

TY  - CONF
AU  - Stojadinović, Luka
AU  - Ivetić, Damjan
AU  - Milašinović, Miloš
AU  - Ignjatović, Lazar
AU  - Stojković, Milan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2459
AB  - Održivo upravljanje složenim vodoprivrednim sistemima, u neizvesnim i promenljivim klimatskim uslovima, kao i pod rastućim socio-ekonomskim zahtevima i ograničenjima, predstavlja kompleksan izazov. Samo u poslednjih par decenija, zabeležene su katastrofalne prirodne nepogode (poplave, suše, zemlotresi itd) koje su po intezitetu prevazilazile dosad zabeležene vrednosti. Vodoprivredni sistemi, kao što su višenamenske akumulacije, predstavljaju jedan primer vitalnih sistema čije je pouzdano funkcionisanje dodatno ugroženo u svetlu novih okolnosti. Kvantifikovanje „spremnosti“ sistema na navedene događaje, se uobičajeno sprovodi kroz analizu rizika primenom tradicionalnih statičkih veličina. Kako statičke mere imaju izvesna ograničenja, u poslednje vreme, sve više se koristi koncept dinamičke rezilijentnosti (izdržljivosti). Kako bi se obezbedila minimizacija štetnog uticaja navedenih događaja na funkcionalnost vodoprivrednih sistema, neophodno je povećati tzv. „rezilijentnost“ sistema, odnosno sposobnost sistema da izdrži i prihvati neki poremećaj i povrati pređašnju funkcionalnost. Kako bi se ispitala „spremnost“ sistema na razne nepovoljne scenarije, koji podrazumevaju smanjenje funkcionalnosti različitih komponenata sistema, neophodno je koristiti adekvatan simulacioni model vodoprivrednog sistema i model otkaza. Na osnovu ovih modela moguće je proceniti ponašanje sistema nakon širokog spektra mogućih nepovoljnih događaja. Takođe, moguće je detektovati komponente koje bi uz pravovremeno ulaganje i poboljšanje stanja ublažile pad funkcionalnosti sistema pri različitim poremećajima i povećale rezilijentnost celog sistema. U ovom istraživanju predstavljen je pristup za modeliranje otkaza i implementaciju istih u vodoprivredni model. Kao primer korišćen je vodoprivredni sistem Pirot.
C3  - 19. Savetovanje SDHI i SDH, Beograd, Srbija
T1  - Dinamička rezilijentnost kao mera za upravljanje rizikom kod složenih vodoprivrednih sistema: Implementacija modela otkaza u vodoprivredni model
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2459
ER  - 

@conference{
author = "Stojadinović, Luka and Ivetić, Damjan and Milašinović, Miloš and Ignjatović, Lazar and Stojković, Milan",
year = "2021",
abstract = "Održivo upravljanje složenim vodoprivrednim sistemima, u neizvesnim i promenljivim klimatskim uslovima, kao i pod rastućim socio-ekonomskim zahtevima i ograničenjima, predstavlja kompleksan izazov. Samo u poslednjih par decenija, zabeležene su katastrofalne prirodne nepogode (poplave, suše, zemlotresi itd) koje su po intezitetu prevazilazile dosad zabeležene vrednosti. Vodoprivredni sistemi, kao što su višenamenske akumulacije, predstavljaju jedan primer vitalnih sistema čije je pouzdano funkcionisanje dodatno ugroženo u svetlu novih okolnosti. Kvantifikovanje „spremnosti“ sistema na navedene događaje, se uobičajeno sprovodi kroz analizu rizika primenom tradicionalnih statičkih veličina. Kako statičke mere imaju izvesna ograničenja, u poslednje vreme, sve više se koristi koncept dinamičke rezilijentnosti (izdržljivosti). Kako bi se obezbedila minimizacija štetnog uticaja navedenih događaja na funkcionalnost vodoprivrednih sistema, neophodno je povećati tzv. „rezilijentnost“ sistema, odnosno sposobnost sistema da izdrži i prihvati neki poremećaj i povrati pređašnju funkcionalnost. Kako bi se ispitala „spremnost“ sistema na razne nepovoljne scenarije, koji podrazumevaju smanjenje funkcionalnosti različitih komponenata sistema, neophodno je koristiti adekvatan simulacioni model vodoprivrednog sistema i model otkaza. Na osnovu ovih modela moguće je proceniti ponašanje sistema nakon širokog spektra mogućih nepovoljnih događaja. Takođe, moguće je detektovati komponente koje bi uz pravovremeno ulaganje i poboljšanje stanja ublažile pad funkcionalnosti sistema pri različitim poremećajima i povećale rezilijentnost celog sistema. U ovom istraživanju predstavljen je pristup za modeliranje otkaza i implementaciju istih u vodoprivredni model. Kao primer korišćen je vodoprivredni sistem Pirot.",
journal = "19. Savetovanje SDHI i SDH, Beograd, Srbija",
title = "Dinamička rezilijentnost kao mera za upravljanje rizikom kod složenih vodoprivrednih sistema: Implementacija modela otkaza u vodoprivredni model",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2459"
}

Stojadinović, L., Ivetić, D., Milašinović, M., Ignjatović, L.,& Stojković, M.. (2021). Dinamička rezilijentnost kao mera za upravljanje rizikom kod složenih vodoprivrednih sistema: Implementacija modela otkaza u vodoprivredni model. in 19. Savetovanje SDHI i SDH, Beograd, Srbija.
https://hdl.handle.net/21.15107/rcub_grafar_2459

Stojadinović L, Ivetić D, Milašinović M, Ignjatović L, Stojković M. Dinamička rezilijentnost kao mera za upravljanje rizikom kod složenih vodoprivrednih sistema: Implementacija modela otkaza u vodoprivredni model. in 19. Savetovanje SDHI i SDH, Beograd, Srbija. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2459 .

Stojadinović, Luka, Ivetić, Damjan, Milašinović, Miloš, Ignjatović, Lazar, Stojković, Milan, "Dinamička rezilijentnost kao mera za upravljanje rizikom kod složenih vodoprivrednih sistema: Implementacija modela otkaza u vodoprivredni model" in 19. Savetovanje SDHI i SDH, Beograd, Srbija (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2459 .

TY  - JOUR
AU  - Ignjatović, Lazar
AU  - Stojković, Milan
AU  - Ivetić, Damjan
AU  - Milašinović, Miloš
AU  - Milivojević, Nikola
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2671
AB  - The objective of this research is to introduce a novel framework to quantify the risk of the reservoir system outside the design envelope, taking into account the risks related to flood-protection and hydro-energy generation under unfavourable reservoir element conditions (system element failures) and hazardous situations within the environment (flood event). To analyze water system behavior in adverse conditions, a system analysis approach is used, which is founded upon the system dynamics model with a causal loop. The capability of the system in performing the intended functionality can be quantified using the traditional static measures like reliability, resilience and vulnerability, or dynamic resilience. In this paper, a novel method for the assessment of a multi-parameter dynamic resilience is introduced. The multi-parameter dynamic resilience envelops the hydropower and flood-protection resilience, as two opposing demands in the reservoir operation regime. A case study of a Pirot reservoir, in the Republic of Serbia, is used. To estimate the multi -parameter dynamic resilience of the Pirot reservoir system, a hydrological model, and a system dynamic simulation model with an inner control loop, is developed. The inner control loop provides the relation between the hydropower generation and flood-protection. The hydrological model is calibrated and generated climate inputs are used to simulate the long-term flow sequences. The most severe flood event period is extracted to be used as the input for the system dynamics simulations. The system performance for five different scenarios with various multi failure events (e.g., generator failure, segment gate failure on the spillway, leakage from reservoir and water supply tunnel failure due to earthquake) are presented using the novel concept of the explicit modeling of the component failures through element functionality indicators. Based on the outputs from the system dynamics model, system performance is determined and, later, hydropower and flood protection resilience. Then, multi-parameter dynamic resilience of the Pirot reservoir system is estimated and compared with the traditional static measures (reliability). Discrepancy between the drop between multi-parameter resilience (from 0.851 to 0.935) and reliability (from 0.993 to 1) shows that static measure underestimates the risk to the water system. Thus, the results from this research show that multi-parameter dynamic resilience, as an indicator, can provide additional insight compared to the traditional static measures, leading to identification of the vulnerable elements of a complex reservoir system. Additionally, it is shown that the proposed explicit modeling of system components failure can be used to reflect the drop of the overall system functionality.
PB  - MDPI
T2  - Water MDPI
T1  - Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System
VL  - 13(22)
DO  - 10.3390/w13223157
ER  - 

@article{
author = "Ignjatović, Lazar and Stojković, Milan and Ivetić, Damjan and Milašinović, Miloš and Milivojević, Nikola",
year = "2021",
abstract = "The objective of this research is to introduce a novel framework to quantify the risk of the reservoir system outside the design envelope, taking into account the risks related to flood-protection and hydro-energy generation under unfavourable reservoir element conditions (system element failures) and hazardous situations within the environment (flood event). To analyze water system behavior in adverse conditions, a system analysis approach is used, which is founded upon the system dynamics model with a causal loop. The capability of the system in performing the intended functionality can be quantified using the traditional static measures like reliability, resilience and vulnerability, or dynamic resilience. In this paper, a novel method for the assessment of a multi-parameter dynamic resilience is introduced. The multi-parameter dynamic resilience envelops the hydropower and flood-protection resilience, as two opposing demands in the reservoir operation regime. A case study of a Pirot reservoir, in the Republic of Serbia, is used. To estimate the multi -parameter dynamic resilience of the Pirot reservoir system, a hydrological model, and a system dynamic simulation model with an inner control loop, is developed. The inner control loop provides the relation between the hydropower generation and flood-protection. The hydrological model is calibrated and generated climate inputs are used to simulate the long-term flow sequences. The most severe flood event period is extracted to be used as the input for the system dynamics simulations. The system performance for five different scenarios with various multi failure events (e.g., generator failure, segment gate failure on the spillway, leakage from reservoir and water supply tunnel failure due to earthquake) are presented using the novel concept of the explicit modeling of the component failures through element functionality indicators. Based on the outputs from the system dynamics model, system performance is determined and, later, hydropower and flood protection resilience. Then, multi-parameter dynamic resilience of the Pirot reservoir system is estimated and compared with the traditional static measures (reliability). Discrepancy between the drop between multi-parameter resilience (from 0.851 to 0.935) and reliability (from 0.993 to 1) shows that static measure underestimates the risk to the water system. Thus, the results from this research show that multi-parameter dynamic resilience, as an indicator, can provide additional insight compared to the traditional static measures, leading to identification of the vulnerable elements of a complex reservoir system. Additionally, it is shown that the proposed explicit modeling of system components failure can be used to reflect the drop of the overall system functionality.",
publisher = "MDPI",
journal = "Water MDPI",
title = "Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System",
volume = "13(22)",
doi = "10.3390/w13223157"
}

Ignjatović, L., Stojković, M., Ivetić, D., Milašinović, M.,& Milivojević, N.. (2021). Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System. in Water MDPI
MDPI., 13(22).
https://doi.org/10.3390/w13223157

Ignjatović L, Stojković M, Ivetić D, Milašinović M, Milivojević N. Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System. in Water MDPI. 2021;13(22).
doi:10.3390/w13223157 .

Ignjatović, Lazar, Stojković, Milan, Ivetić, Damjan, Milašinović, Miloš, Milivojević, Nikola, "Quantifying Multi-Parameter Dynamic Resilience for Complex Reservoir Systems Using Failure Simulations: Case Study of the Pirot Reservoir System" in Water MDPI, 13(22) (2021),
https://doi.org/10.3390/w13223157 . .