ID:
publications-4604
Type:
article
Year:
1987
Authors:
Su, Yu and Su, Yu Chun and Mays, Larry W. and Mays, Larry W. and Duan, Ning and Duan, Ning and Lansey, Kevin and Lansey, Kevin E
Title:
Reliabilityβ€Based Optimization Model for Water Distribution Systems
Venue/Journal:
Journal of Hydraulic Engineering
DOI:
10.1061/(asce)0733-9429(1987)113:12(1539)
Research type:
Water System:
Technical Focus:
Abstract:
This paper presents the basic framework for a model that can be used to determine the optimal (leastβ€cost) design of a water distribution system subject to continuity, conservation of energy, nodal head bounds, and reliability constraints. Reliability is defined as the probability of satisfying nodal demands and pressure heads for various possible pipe failures (breaks) in the water distribution system. The overall model includes three that are linked: a steadyβ€state simulation model, a reliability model, and an optimization model. The simulation model is used to implicitly solve the continuity and energy constraints and is used in the reliability model to define minimum cut sets. The reliability model, which is based on a minimum cutβ€set method, determines the values of system and nodal reliability. The optimization model is based on a generalized reducedβ€gradient method. Examples are used to illustrate the model.
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