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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 4: Responding to Shifting Water Resources : Least cost design of water distribution networks under uncertainty of nodal demands
Least cost design of water distribution networks under uncertainty of nodal demands
Author : S. R. Dongre1, Rajesh Gupta1 and P. R. Bhave2
A Fuzzy optimization model is proposed herein, which is converted to deterministic optimization problem by considering relationship between fuzzy demands and fuzzy nodal heads. This relationship provides bounds on minimum and maximum value of the nodal heads for maximum and minimum demands respectively. Genetic Algorithm is used as an optimization tool to find feasible solutions. The proposed methodology is illustrated through a benchmark problem and the results are compared with those obtained by other researchers. It is interesting to note that, there is no feasible solution possible to the example network with links consisting of single size from the list of available pipe sizes. The problem is also solved by dropping bounds on maximum value of nodal heads as usually considered in design of networks. The network design is obtained for various α-cuts (uncertainty levels) to obtain the trade-off of cost of network with uncertainty levels.
File Size : 239,623 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 4: Responding to Shifting Water Resources
Date Published : 01/07/2011
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