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Algorithm for water distribution network segmentation using existing isolation valves

Algoritam za segmentaciju vodovodne mreže pomoću postojećih izolacionih zatvarača

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Authors
Ivetić, Damjan
Stanić, Miloš
Vasilić, Željko
Prodanović, Dušan
Article (Published version)
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Abstract
Dividing a complex water distribution network (segmentation) on smaller zones, with defined entry and exit points, is a precondition for better water loss management. In order to obtain these zones, often called District Metering Areas, it is necessary to divide a complex looped water distribution network on separate units by closure of minimal number of pipes. It is convenient to use existing isolation valves, placed earlier in the network, for this task. Water distribution network is analyzed as a topologically sorted system made out of pipes (connections), nodes and existing isolation valves. Segments in the distribution network are defined, where they represent a part of the network that can be isolated from the rest by closing certain isolation valves. Algorithm presented, has the task to, based on the hydraulic model of the water distribution system entered through standard software (EPANET, 3Dnet), define network segments, accidental disconnection of the network parts as a resul...t of the isolation of a segment, as well as a water demand shortfall which will occur due to the segment isolation. Algorithm is based on topological incidence matrices, which are used in the hydraulic model of the water distribution network. Methodology shown is applied on the example of water supply network of the Italian city of Ferrara.

Podela složene vodovodne mreže (segmentacija) na manje zone, sa jasnim ulazima i izlazima, je preduslov za uspostavljanje bolje kontrole nad gubicima. Da bi se formirale takve zone, koje se često zovu i osnovne zone bilansiranja, potrebno je složenu i prstenastu vodovodnu mrežu podeliti na odvojene celine zatvaranjem minimalnog broja cevi. Pri tome, zgodno je koristiti postojeće izolacione zatvarače, ranije postavljene u mreži. U radu se prikazuje algoritam za automatsku segmentaciju korišćenjem postojećih izolacionih zatvarača. Vodovodna mreža se posmatra kao topološki uređen sistem koji se sastoji od cevi (veza), čvorova i postojećih izolacionih zatvarača. Definišu se segmenti distributivne mreže koji predstavljaju delove mreže koji se mogu izolovati od ostatka sistema zatvaranjem određenih izolacionih zatvarača. Predstavljeni algoritam za segmentaciju ima za zadatak da na osnovu hidrauličkih modela vodovodnih mreža unetih preko standardnih softvera (EPANET, 3Dnet) definiše segmente ...mreže, nenamerna isključenja u mreži kao posledicu izolovanja određenog segmenta, kao i deficit u vodosnabdevanju koji će se izolovanjem određenog segmenta javiti. Algoritam je baziran na topološkim matricama povezanosti, koje se koriste u hidrauličkim modelima vodovodnih mreža. Prikazana metodologija za segmentaciju je primenjena na primeru vodovodne mreže italijanskog grada Ferara.

Keywords:
segments / water networks / topological incidence matrix / segmenti / vodovodne mreže / topološke matrice povezanosti
Source:
Voda i sanitarna tehnika, 2014, 44, 3-4, 37-48
Publisher:
  • Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd
Projects:
  • Urban Drainage Systems as Key Infrastructure in Cities and Towns (RS-37010)

ISSN: 0350-5049

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URI
http://grafar.grf.bg.ac.rs/handle/123456789/584
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  • Катедра за хидротехнику и водно-еколошко инжењерство
  • Катедра за геодезију и геоинформатику
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