Modeling Reliability in Water Distribution Network Design

by Larry W. Mays, Univ of Texas at Austin, TX, USA,
Ning Duan, Univ of Texas at Austin, TX, USA,
Yu-Chun Su, Univ of Texas at Austin, TX, USA,

Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution


The component failures in a water distribution system include pipe breaks, pump failures, valve failures, storage malfunctions, etc. The reliability of these components has an effect upon the overall system reliability and must be used in determining the overall reliability of a system. The conventional design process for water distribution systems is a trial and error procedure that attempts to find a design that represents a least cost solution that can satisfy demands. These trial and error procedures make no attempt to analyze or define any realibility aspects of the designed system and have no guarantee that the resulting system is a minimum cost system. The purpose of this paper is to discuss some of the aspects of water distribution system reliability and present some ideas and a methodology that could possibly enhance the design of water distribution systems. Refs.

Subject Headings: Pipe failures | Hydraulic models | Hydrologic models | Hydraulic design | Water storage | Errors (statistics) | Water supply systems | Probability distribution

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