Optimal cost design of water distribution networks using harmony search

Optimal cost design of water distribution networks using harmony search

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Article ID: iaor2007835
Country: United Kingdom
Volume: 38
Issue: 3
Start Page Number: 259
End Page Number: 280
Publication Date: Apr 2006
Journal: Engineering Optimization
Authors:
Keywords: engineering, optimization, networks
Abstract:

This study presents a cost minimization model for the design of water distribution networks. The model uses a recently developed harmony search optimization algorithm while satisfying all the design constraints. The harmony search algorithm mimics a jazz improvisation process in order to find better design solutions, in this case pipe diameters in a water distribution network. The model also interfaces with a popular hydraulic simulator, EPANET, to check the hydraulic constraints. If the design solution vector violates the hydraulic constraints, the amount of violation is considered in the cost function as a penalty. The model was applied to five water distribution networks, and obtained designs that were either the same or cost 0.28–10.26% less than those of competitive meta-heuristic algorithms, such as the genetic algorithm, simulated annealing and tabu search under similar or less favorable conditions. The results show that the harmony search-based model is suitable for water network design.

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