Optimal Design of Sanitary Sewersby James S. Gidley, West Virginia Univ, Morgantown, WV, USA,
Abstract: Virtually all recent research has been on conventional gravity sewers without pumping. A variety of optimization techniques has been used, including linear programming, nonlinear programming, separable programming, geometric programming, mixed integer programming, and dynamic programming. Cost savings of 2 to 30% compared with traditional designs have been claimed. Optimization does not appear to have had a significant impact on design practice, because researchers have focused on problems for which an experienced and cost-conscious designer could relatively easily arrive at a nearly optimal design using traditional methods, and because software for optimal sewer design does not appear to have been made generally available. Further research is needed on alternative sewer systems, and generally available software is needed.
Subject Headings: Computer aided design | Gravity sewers | Pumps | Linear functions | Geometrics
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