Post-optimization heuristics complementing the design of real water distribution systems

Manuel A. Andrade, Doosun Kang, Christopher Y. Choi, Kevin Lansey

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

Abstract

Adaptive search methods are often used to design urban water distribution networks when the number of pipes in the network is insignificant. For complex, real-world networks, however, such methods are computationally demanding and they have difficulty finding near-global optima. To identify a solution as close to the global optimum (and in which no pipe can be reduced without violating pressure constraints), requires a high-speed computer potentially running for a long time and also probably some good fortune. This work presents a methodology for refining the solutions found by adaptive search algorithms used in the design of large waterdistribution networks. The approach employs two heuristics to search for an optimal combination of pipes that, after a reduction of their diameters, will maximize cost savings while continuing to meet design constraints. The post-optimization approach presented here is shown to be an efficient complement to heuristic search algorithms used in the design of real-world networks.

Original languageEnglish (US)
Title of host publicationWorld Environmental and Water Resources Congress 2012
Subtitle of host publicationCrossing Boundaries, Proceedings of the 2012 Congress
Pages3225-3236
Number of pages12
DOIs
StatePublished - Sep 17 2012
EventWorld Environmental and Water Resources Congress 2012: Crossing Boundaries - Albuquerque, NM, United States
Duration: May 20 2012May 24 2012

Publication series

NameWorld Environmental and Water Resources Congress 2012: Crossing Boundaries, Proceedings of the 2012 Congress

Other

OtherWorld Environmental and Water Resources Congress 2012: Crossing Boundaries
CountryUnited States
CityAlbuquerque, NM
Period5/20/125/24/12

Keywords

  • Greedy algorithm
  • Optimization
  • WDS design

ASJC Scopus subject areas

  • Water Science and Technology

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