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An algorithm for minimization of pumping costs in water distribution systems using a novel approach to pump scheduling

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journal contribution
posted on 2024-06-04, 04:12 authored by AM Bagirov, AF Barton, H Mala-Jetmarova, A Al Nuaimat, ST Ahmed, N Sultanova, John YearwoodJohn Yearwood
The operation of a water distribution system is a complex task which involves scheduling of pumps, regulating water levels of storages, and providing satisfactory water quality to customers at required flow and pressure. Pump scheduling is one of the most important tasks of the operation of a water distribution system as it represents the major part of its operating costs. In this paper, a novel approach for modeling of explicit pump scheduling to minimize energy consumption by pumps is introduced which uses the pump start/end run times as continuous variables, and binary integer variables to describe the pump status at the beginning of the scheduling period. This is different from other approaches where binary integer variables for each hour are typically used, which is considered very impractical from an operational perspective. The problem is formulated as a mixed integer nonlinear programming problem, and a new algorithm is developed for its solution. This algorithm is based on the combination of the grid search with the Hooke-Jeeves pattern search method. The performance of the algorithm is evaluated using literature test problems applying the hydraulic simulation model EPANet. © 2012 Elsevier Ltd.

History

Journal

Mathematical and computer modelling

Volume

57

Pagination

873-886

Location

Amsterdam, The Netherlands

Open access

  • Yes

ISSN

0895-7177

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

2012 Elsevier

Issue

3-4

Publisher

Elsevier