New methodology for determining the optimal rehabilitation and replacement of water distribution system components

Yu Chun Su, Larry W. Mays

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

A methodology is presented for the determination of the optimal timing for the rehabilitation/replacement of water distribution system components in order to minimize costs. In this model the pipe roughness together with the water quantity and the pressure requirements at demand nodes are considered as random variables so that constraints on nodal demands and minimum pressure heads are expressed in probabilistic form. A chance constrained approach is used to transform the model into a deterministic equivalent model which is further decomposed into an integer programming master problem and a nonlinear programming subproblem. An enumeration method can be used to solve the integer master problem, and a generalized reduced gradient method together with a hydraulic simulation model can be used to solve the nonlinear subproblem.

Original languageEnglish (US)
Title of host publicationHydraul Eng Proc 1988 Natl Conf Hydraul Eng
PublisherPubl by ASCE
Pages1149-1154
Number of pages6
ISBN (Print)0872626709, 0872626709
StatePublished - Dec 1 1988
EventHydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering - Colorado Springs, CO, USA
Duration: Aug 8 1988Aug 12 1988

Publication series

NameHydraul Eng Proc 1988 Natl Conf Hydraul Eng

Other

OtherHydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering
CityColorado Springs, CO, USA
Period8/8/888/12/88

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Su, Y. C., & Mays, L. W. (1988). New methodology for determining the optimal rehabilitation and replacement of water distribution system components. In Hydraul Eng Proc 1988 Natl Conf Hydraul Eng (pp. 1149-1154). (Hydraul Eng Proc 1988 Natl Conf Hydraul Eng). Publ by ASCE.