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KSCE Journal of Civil Engineering

, Volume 14, Issue 4, pp 613–625 | Cite as

Development of a PDA model for water distribution systems using harmony search algorithm

  • Chun Woo Baek
  • Hwan Don JunEmail author
  • Joong Hoon Kim
Article

Abstract

Hydraulic analysis of water distribution systems can be divided into DDA (Demand-Driven Analysis) and PDA (Pressure-Driven Analysis). Many studies have reported the superiority of the PDA over the DDA in the realistic simulation of hydraulic conditions under abnormal operating conditions. Many of the developed PDA models rely on iterative processes to solve the equations, which is a time-consuming task and even worse it is not possible to solve them in some cases. To improve the efficiency of the PDA, the present study proposes a new PDA model which interfaces a hydraulic simulator and an optimization algorithm with a customized searching scheme. The suggested model is applied to differently sized water distribution systems under abnormal operating conditions and its results are compared with ones by the DDA model and two other PDA models. As results, the DDA may generate unrealistic hydraulic results under the abnormal operating conditions while the three PDA models produce more realistic results. Moreover, the suggested PDA model with the new optimization process simulates the hydraulic conditions under the abnormal operating conditions in large water distribution systems efficiently compared to the other PDA models.

Keywords

pressure driven analysis demand driven analysis abnormal operating conditions Harmony Search EPANET water distribution system 

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Copyright information

© Korean Society of Civil Engineers and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Chun Woo Baek
    • 1
  • Hwan Don Jun
    • 2
    Email author
  • Joong Hoon Kim
    • 3
  1. 1.Centre for Ecohydrology and School of Environmental System EngineeringUniversity of Western AustraliaCrawleyAustralia
  2. 2.School of Civil EngineeringSeoul National University of TechnologySeoulKorea
  3. 3.School of Civil, Environmental and Architectural EngineeringKorea UniversitySeoulKorea

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