Stochastic model and method of zoning water networks
DOI:
https://doi.org/10.15587/1729-4061.2014.21080Keywords:
zoning, quasi-stationary mode, dispersion, pressure regulator, overpressure, stochastic modelAbstract
Water consumption at different time of the day is uneven. The model of steady flow distribution in water-supply networks is calculated for maximum consumption and effectively used in the network design and reconstruction. Quasi-stationary modes, in which the parameters are random variables and vary relative to their mean values are more suitable for operational management and planning of rational network operation modes.
Leaks, which sometimes exceed 50 % of the volume of water supplied, are one of the problems in water-supply systems. One of the ways to reduce leaks is zoning (overpressure zone definition) and pressure regulators installation.
The method of reengineering water networks by their zoning and pressure regulators installation was developed in the paper. Its implementation provides a significant reduction of the total overpressure in the water network nodes, water leak volumes and saving material and energy resources.
The improved method for zoning the water network is based on the stochastic model of quasi-stationary modes in the water supply and distribution systems, and pressure regulators parameters optimization for each determined zone.
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