Abstract
Future water demands and pipe roughness coefficients used in the design of water distribution networks (WDNs) have a high degree of uncertainty. Fuzzy analysis of WDNs provide how the uncertainties in independent or basic parameters (such as nodal demands and pipe roughness coefficients) are propagated to dependent or derived parameters (such as pipe flows, pipe velocities, and available pressure heads). Usually demand dependent analysis is used for such analysis. A WDN may be pressure deficient or may become pressure deficient because of high pipe roughness or inadequate pump pressure and may not be able to meet desired demands at all nodes. Thus, it is desirable to consider the nodal outflows as unknown and as a function of available pressure heads under pressure-deficient conditions. An approach for fuzzy analysis of a WDN that takes into account pressure-deficient condition using node flow analysis is presented in this paper. The proposed methodology is illustrated with an example network taken from literature. The methodology is useful in identifying vulnerable zones in WDNs and can be extended for reliability analysis under uncertainty of nodal demands and pipe roughness coefficients. Comparison of results with usual demand-dependent analysis shows that proposed method is better for identifying vulnerable zones.
Original language | English |
---|---|
Title of host publication | World Environmental and Water Resources Congress 2014 |
Subtitle of host publication | Water Without Borders - Proceedings of the 2014 World Environmental and Water Resources Congress |
Editors | Wayne C. Huber, Wayne C. Huber |
Pages | 435-444 |
Number of pages | 10 |
ISBN (Electronic) | 9780784413548 |
DOIs | |
State | Published - 2014 |
Event | World Environmental and Water Resources Congress 2014: Water Without Borders - Portland, United States Duration: Jun 1 2014 → Jun 5 2014 |
Publication series
Name | World Environmental and Water Resources Congress 2014: Water Without Borders - Proceedings of the 2014 World Environmental and Water Resources Congress |
---|
Conference
Conference | World Environmental and Water Resources Congress 2014: Water Without Borders |
---|---|
Country/Territory | United States |
City | Portland |
Period | 6/1/14 → 6/5/14 |
Bibliographical note
Publisher Copyright:© 2014 American Society of Civil Engineers.
ASJC Scopus subject areas
- Water Science and Technology