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Water distribution networks robust design based on energy surplus index maximization

E. Creaco, A. Fortunato, M. Franchini, M. R. Mazzola
Available Online 29 June 2015, ws2015091; DOI: 10.2166/ws.2015.091
E. Creaco
Dipartimento di Ingegneria, Università degli Studi di Ferrara, Via Saragat, 1, 44122 Ferrara, Italy
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A. Fortunato
Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università degli Studi di Palermo, Viale delle Scienze, Ed. 8, 90128 Palermo, Italy E-mail: antonino.fortunato@unipa.it
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M. Franchini
Dipartimento di Ingegneria, Università degli Studi di Ferrara, Via Saragat, 1, 44122 Ferrara, Italy
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M. R. Mazzola
Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università degli Studi di Palermo, Viale delle Scienze, Ed. 8, 90128 Palermo, Italy E-mail: antonino.fortunato@unipa.it
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Abstract

The aim of this paper is to show that energy surplus indices, such as resilience index, besides providing a very good indirect measure of water distribution network reliability, also represent a valuable and effective indicator of the network robustness under alternative network scenarios. It can thus be profitably used for network design under conditions of uncertain future demands. The methodology adopted consisted of (I) multi-objective design optimization performed in order to minimize construction costs while maximizing the resilience index; (II) retrospective performance assessment of the alternative solutions of the Pareto front obtained, under demand conditions far from those assumed during the design phase. Two case studies of different topological complexity were considered. Results showed that the resilience index, which is one of the most effective indirect indices of reliability, represents a very good measure of robustness as well.

  • optimal robust design
  • resilience index
  • water distribution network
  • First received 25 January 2015.
  • Accepted in revised form 15 June 2015.
  • © IWA Publishing 2015

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SELECTED ISSUE

Water Science and Technology: Water Supply: 18 (2)
  Volume 18,issue 2

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Water distribution networks robust design based on energy surplus index maximization
E. Creaco, A. Fortunato, M. Franchini, M. R. Mazzola
Water Science and Technology: Water Supply Jun 2015, ws2015091; DOI: 10.2166/ws.2015.091
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Water distribution networks robust design based on energy surplus index maximization
E. Creaco, A. Fortunato, M. Franchini, M. R. Mazzola
Water Science and Technology: Water Supply Jun 2015, ws2015091; DOI: 10.2166/ws.2015.091

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Keywords

optimal robust design
resilience index
water distribution network
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