Projects per year
Abstract
In water distribution networks (WDNs), the available flow at a demand node is dependent on the pressure at that node. When a network is lacking in pressure, not all consumer demands will be met in full. In this context, the assumption that all demands are fully satisfied regardless of the pressure in the system becomes unreasonable and represents the main limitation of the conventional demand driven analysis (DDA) approach to WDS modelling. A realistic depiction of the network performance can only be attained by considering demands to be pressure dependent. This paper presents an extension of the renowned DDA based hydraulic simulator EPANET 2 to incorporate pressure‐dependent demands. This extension is termed “EPANET‐PDX” (pressure‐dependent extension) herein. The utilization of a continuous nodal pressure‐flow function coupled with a line search and backtracking procedure greatly facilitate the algorithm's convergence rate and robustness. Simulations of real life networks consisting of multiple sources, pipes, valves and pumps were successfully executed and results are presented herein. Excellent modelling performance was achieved for analysing both normal and pressure deficient conditions of the WDNs.
Original language | English |
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Title of host publication | 12th International Conference on Water Distribution Systems Analysis |
Publication status | Published - Sept 2010 |
Event | 12th International Conference on Water Distribution Systems Analysis - Tucson, Arizona, United States Duration: 12 Sept 2010 → 15 Sept 2010 |
Conference
Conference | 12th International Conference on Water Distribution Systems Analysis |
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Country/Territory | United States |
City | Tucson, Arizona |
Period | 12/09/10 → 15/09/10 |
Keywords
- EPANET
- pressure-dependent demand
- water distribution systems
Fingerprint
Dive into the research topics of 'Pressure-dependent EPANET extension: pressure-dependent demands'. Together they form a unique fingerprint.Projects
- 1 Finished
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PF-MOEA: Penalty-free feasibility boundary-convergent multi-objective evolutionary approach for water distribution
Tanyimboh, T. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/09 → 31/03/13
Project: Research
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Pressure dependent network water quality modelling
Seyoum, A. G. & Tanyimboh, T., Jun 2014, In: Proceedings of the ICE - Water Management . 167, 6, p. 342-355 14 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile24 Citations (Scopus)320 Downloads (Pure) -
Assessment of water quality modelling capabilities of EPANET multi-species and pressure dependent extension models
Seyoum, A. G., Tanyimboh, T. T. & Siew, C., 31 Aug 2013, In: Water Science and Technology: Water Supply. 13, 4, p. 1161-1166 6 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile16 Citations (Scopus)313 Downloads (Pure) -
Penalty-free feasibility boundary convergent multi-objective evolutionary algorithm for the optimization of water distribution systems
Siew, C. & Tanyimboh, T., Dec 2012, In: Water Resources Management. 26, 15, p. 4485-4507 23 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile39 Citations (Scopus)149 Downloads (Pure)