Razvoj modela za planiranje pouzdanosti složenih vodoprivrednih sistema
Reliability as tool for planning complex water resources systems
Doctoral thesis (Published version)
Metadata
Show full item recordAbstract
Failure of water resources systems, particularly water
supply systems, may cause serious consequences in
economical and social environment. So these systems
have to fulfill high requirements of their functional
safety. Although very important, that aspect of safety is
not treated adequately in the phases of planning water
distribution systems. That is why the aspects of overall
water resources systems reliability evaluation, as well
as the problems of allocation and reliability optimal
system configuration, are considered.
New methodology for water resources systems
reliability evaluation is presented. Proposed
methodology considers both: mechanical reliability
(probability of pipe failure) and reliability of hydraulic
parameters in nodes and links (pressure, velocity). On the base of this methodology NETREL and 2PFREL
models were developed. These models are useful for
determing reliability of systems with different
configurations and complexity. Also, they make
possi...ble restriction of various hydraulic parameters and
their values. Models were analyzed and verified on
different water supply systems: regional and
distribution, and gravity and pumping systems.
Another important task, considered in the thesis, was
problem of optimal reliability allocation. Different
methods were analyzed, but particular point was
focused on genetic algorithms. That method, coupled
with the reliability evaluation methods, is an efficient
tool for problems of water resources systems optimal
reliability allocation. This methodology provides
performing optimization in real time and results that are
usually the global optimum of the considered problem.
Mechanical characteristics of pipes, failure and repair
rates, are very important for system's overall reliability.
These rates were considered and critically analyzed.
Methods for planning operative monitoring-information
system are proposed. Such a system allows better
monitoring and management, reduction of repair time,
which leads to higher values of system's overall
reliability. Pipes failure and repair rates for Belgrade
water supply system were analyzed and used as the
base for evaluation of presented models.
Keywords:
water resources systems / reliability / reliability optimization / genetic algorithm / monitoring system / vodoprivredni sistemi / optimizacija pouzdanosti / genetski algoritmi / osmatranje sistemaSource:
2003Collections
Institution/Community
GraFarTY - THES AU - Dašić, Tina P. PY - 2003 UR - https://grafar.grf.bg.ac.rs/handle/123456789/1791 AB - Failure of water resources systems, particularly water supply systems, may cause serious consequences in economical and social environment. So these systems have to fulfill high requirements of their functional safety. Although very important, that aspect of safety is not treated adequately in the phases of planning water distribution systems. That is why the aspects of overall water resources systems reliability evaluation, as well as the problems of allocation and reliability optimal system configuration, are considered. New methodology for water resources systems reliability evaluation is presented. Proposed methodology considers both: mechanical reliability (probability of pipe failure) and reliability of hydraulic parameters in nodes and links (pressure, velocity). On the base of this methodology NETREL and 2PFREL models were developed. These models are useful for determing reliability of systems with different configurations and complexity. Also, they make possible restriction of various hydraulic parameters and their values. Models were analyzed and verified on different water supply systems: regional and distribution, and gravity and pumping systems. Another important task, considered in the thesis, was problem of optimal reliability allocation. Different methods were analyzed, but particular point was focused on genetic algorithms. That method, coupled with the reliability evaluation methods, is an efficient tool for problems of water resources systems optimal reliability allocation. This methodology provides performing optimization in real time and results that are usually the global optimum of the considered problem. Mechanical characteristics of pipes, failure and repair rates, are very important for system's overall reliability. These rates were considered and critically analyzed. Methods for planning operative monitoring-information system are proposed. Such a system allows better monitoring and management, reduction of repair time, which leads to higher values of system's overall reliability. Pipes failure and repair rates for Belgrade water supply system were analyzed and used as the base for evaluation of presented models. T1 - Razvoj modela za planiranje pouzdanosti složenih vodoprivrednih sistema T1 - Reliability as tool for planning complex water resources systems UR - https://hdl.handle.net/21.15107/rcub_grafar_1791 ER -
@phdthesis{ author = "Dašić, Tina P.", year = "2003", abstract = "Failure of water resources systems, particularly water supply systems, may cause serious consequences in economical and social environment. So these systems have to fulfill high requirements of their functional safety. Although very important, that aspect of safety is not treated adequately in the phases of planning water distribution systems. That is why the aspects of overall water resources systems reliability evaluation, as well as the problems of allocation and reliability optimal system configuration, are considered. New methodology for water resources systems reliability evaluation is presented. Proposed methodology considers both: mechanical reliability (probability of pipe failure) and reliability of hydraulic parameters in nodes and links (pressure, velocity). On the base of this methodology NETREL and 2PFREL models were developed. These models are useful for determing reliability of systems with different configurations and complexity. Also, they make possible restriction of various hydraulic parameters and their values. Models were analyzed and verified on different water supply systems: regional and distribution, and gravity and pumping systems. Another important task, considered in the thesis, was problem of optimal reliability allocation. Different methods were analyzed, but particular point was focused on genetic algorithms. That method, coupled with the reliability evaluation methods, is an efficient tool for problems of water resources systems optimal reliability allocation. This methodology provides performing optimization in real time and results that are usually the global optimum of the considered problem. Mechanical characteristics of pipes, failure and repair rates, are very important for system's overall reliability. These rates were considered and critically analyzed. Methods for planning operative monitoring-information system are proposed. Such a system allows better monitoring and management, reduction of repair time, which leads to higher values of system's overall reliability. Pipes failure and repair rates for Belgrade water supply system were analyzed and used as the base for evaluation of presented models.", title = "Razvoj modela za planiranje pouzdanosti složenih vodoprivrednih sistema, Reliability as tool for planning complex water resources systems", url = "https://hdl.handle.net/21.15107/rcub_grafar_1791" }
Dašić, T. P.. (2003). Razvoj modela za planiranje pouzdanosti složenih vodoprivrednih sistema. . https://hdl.handle.net/21.15107/rcub_grafar_1791
Dašić TP. Razvoj modela za planiranje pouzdanosti složenih vodoprivrednih sistema. 2003;. https://hdl.handle.net/21.15107/rcub_grafar_1791 .
Dašić, Tina P., "Razvoj modela za planiranje pouzdanosti složenih vodoprivrednih sistema" (2003), https://hdl.handle.net/21.15107/rcub_grafar_1791 .