Method for Extended Period Simulation of Water Distribution Networks with Pressure Driven Demands

D. Paez (), C. R. Suribabu and Y. Filion
Additional contact information
D. Paez: Queen’s University
C. R. Suribabu: SASTRA University
Y. Filion: Queen’s University

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2018, vol. 32, issue 8, No 17, 2837-2846

Abstract: Abstract This paper proposes a non-iterative method to perform the simulation of water distribution systems with pressure driven demands using EPANET2 without the need to use its programmer’s toolkit. The method works for single period simulation (snapshot) and for extended period simulation (EPS) as well. It is based on the addition of a flow control valve (FCV), a throttle control valve (TCV), a check valve (CV) and a reservoir to each demand node in the network, in addition to a list of simple controls to modify the setting of the FCV and TCV in each time step. The main advantages of this approach are: 1. the source code of EPANET2 is not modified, 2. the toolkit functions are not needed for the simulation and they remain available for further uses, 3. the extended period simulation (EPS) is performed by EPANET2 and it carries tank levels, demand variation and other time-changing variables internally. The performance of the method is tested in two benchmark networks and a real size network with pumps, tanks and a 24 h demand pattern. The results show that the method computed the pressures and outflows accurately and that the computational time required is not significantly higher than a demand driven execution in most cases.

Keywords: Pressure driven demand; EPANET; Non iterative; Control valves (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s11269-018-1961-1

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