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Topic: “Losses in supply infrastructure”
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Subject: Losses in supply infrastructure
Posted: 11/6/2007 Viewed: 36853 times I am interested in modeling the losses in supply infrastructure using WEAP. Does anybody have any experience to determine where the losses are greatest in supply infrastructure? |
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Subject: Losses in supply infrastructure
Posted: 11/8/2007 Viewed: 36843 times "I am interested in modeling the losses in supply infrastructure using WEAP. Does anybody have any experience to determine where the losses are greatest in supply infrastructure? " The greatest losses are usually in urban areas, particularly where the distribution infrastructure is ageing. Arthur Chapman achapman@csir.co.za -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. |
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Subject: RE: Losses in supply infrastructure
Posted: 11/8/2007 Viewed: 36838 times As part of a groundwater management strategy that I developed for the City of Calgary in 2005 we estimated urban groundwater recharge from surface wat er fed supply mains. According to the folks i spoke to from city infrastructure - waterworks, th ey lose approximately 12 % of water from the water main connections and L's . I would suggest that connections would be responsible for the majority o f losses but do not have a reference for you. Sincerely, Jeff M. Rempel, B.Sc. President / Owner - PhilEco Environmental Consulting Joint Masters in Water and Coastal Management - M.Sc. Candidate University of Plymouth, UK Ph: 0 7964396802 |
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Subject: Supply Losses
Posted: 11/8/2007 Viewed: 36817 times Conveyance) are direct evaporation and seepage. where both can be modeled by WEAP. On Storage side, direct evaporation is a major loss which can be explicitly specified in WEAP's Reservoir module. On Conveyance side, "irrecoverable" seepage loss and evaporation can be modeled as loss in Transmission Link expressed a fraction of supply delivered at the upstream end of the Link. The "recoverable" seepage losses, however, can be captured and routed to a ground water element in WEAP. ************************************************************** Mohammad Rayej, Ph.D., P.E. Senior Engineer, W.R. California Department of Water Resources Statewide Water Planning Branch 901 P Street, 2nd Floor Sacramento, CA 94236 (916)-653-8017 rayej@water.ca.gov |
Topic: “Losses in supply infrastructure”