Maximum entropy design of water distribution systems under multiple operating conditions

Anna Czajkowska, Tiku Tanyimboh

Research output: Contribution to conferenceProceeding

Abstract

This paper presents an optimal design methodology for the design of water distribution systems based on a multi-objective genetic algorithm, namely NSGA II, coupled with water distribution network simulation software, EPANET 2 and subroutine that calculates entropy. The novelty of this research is that it is a reliability-based approach that combines least cost design based on real-world commercial pipe sizes with maximum entropy for water distribution systems working under multiple operating conditions. The new approach has been demonstrated by designing a well known benchmark network. Results generated using multiple operating conditions and the commonly used single operating condition are presented and compared. It is shown that designs based on multiple operating conditions do not entail excessive cost, have more uniform pipe diameters and are more reliable.
LanguageEnglish
Number of pages8
Publication statusPublished - Jul 2012
Event10th International Conference on Hydroinformatics - Hamburg, Germany
Duration: 14 Jul 201218 Jul 2012

Conference

Conference10th International Conference on Hydroinformatics
CountryGermany
CityHamburg
Period14/07/1218/07/12

Fingerprint

Water distribution systems
Entropy
Pipe
Subroutines
Electric power distribution
Costs
Genetic algorithms
Water

Keywords

  • maximum entropy formalism
  • water distribution system
  • surrogate reliability indicators
  • multiobjective evolutionary optimization
  • genetic algorithm
  • NSGA II
  • EPANET 2
  • resilience index
  • surplus power factor

Cite this

Czajkowska, A., & Tanyimboh, T. (2012). Maximum entropy design of water distribution systems under multiple operating conditions. 10th International Conference on Hydroinformatics, Hamburg, Germany.
Czajkowska, Anna ; Tanyimboh, Tiku. / Maximum entropy design of water distribution systems under multiple operating conditions. 10th International Conference on Hydroinformatics, Hamburg, Germany.8 p.
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Czajkowska, A & Tanyimboh, T 2012, 'Maximum entropy design of water distribution systems under multiple operating conditions' 10th International Conference on Hydroinformatics, Hamburg, Germany, 14/07/12 - 18/07/12, .

Maximum entropy design of water distribution systems under multiple operating conditions. / Czajkowska, Anna; Tanyimboh, Tiku.

2012. 10th International Conference on Hydroinformatics, Hamburg, Germany.

Research output: Contribution to conferenceProceeding

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AU - Tanyimboh, Tiku

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AB - This paper presents an optimal design methodology for the design of water distribution systems based on a multi-objective genetic algorithm, namely NSGA II, coupled with water distribution network simulation software, EPANET 2 and subroutine that calculates entropy. The novelty of this research is that it is a reliability-based approach that combines least cost design based on real-world commercial pipe sizes with maximum entropy for water distribution systems working under multiple operating conditions. The new approach has been demonstrated by designing a well known benchmark network. Results generated using multiple operating conditions and the commonly used single operating condition are presented and compared. It is shown that designs based on multiple operating conditions do not entail excessive cost, have more uniform pipe diameters and are more reliable.

KW - maximum entropy formalism

KW - water distribution system

KW - surrogate reliability indicators

KW - multiobjective evolutionary optimization

KW - genetic algorithm

KW - NSGA II

KW - EPANET 2

KW - resilience index

KW - surplus power factor

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Czajkowska A, Tanyimboh T. Maximum entropy design of water distribution systems under multiple operating conditions. 2012. 10th International Conference on Hydroinformatics, Hamburg, Germany.