A novel robust optimization approach for an integrated municipal water distribution system design under uncertainty: A case study of Mashhad

•A deterministic multi-echelon model for municipal water supply network is proposed.•A two-stage stochastic programming model for the water supply system is extended.•Both potable and non-potable water are separated through the integrated models.•A novel robust optimization approach is developed. Th...

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Bibliographic Details
Published in:Computers & chemical engineering Vol. 110; pp. 13 - 34
Main Authors: Ghelichi, Zabih, Tajik, Javad, Pishvaee, Mir Saman
Format: Journal Article
Language:English
Published: Elsevier Ltd 02.02.2018
Subjects:
Robust optimization
Two-stage scenario-based stochastic programming
Water distribution system
Water distribution system
Robust optimization
Two-stage scenario-based stochastic programming
ISSN:0098-1354, 1873-4375
Online Access:Get full text
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Summary:•A deterministic multi-echelon model for municipal water supply network is proposed.•A two-stage stochastic programming model for the water supply system is extended.•Both potable and non-potable water are separated through the integrated models.•A novel robust optimization approach is developed. This paper proposes a novel robust optimization (RO) approach along with a two-stage scenario-based stochastic programming to optimize a municipal water distribution system (WDS) under demand and rainfall uncertainties. Firstly, we have proposed a new multi-period mixed-integer linear programming (MILP) formulation of a municipal WDS. The goal is to find solutions that are both cost-effective and completely fulfill potable and non-potable demand in an integrated system. Furthermore, a novel RO approach is developed which attempts to adjust protection level in a column what we call “adjustable column-wise robust optimization”. The interesting point of the proposed RO approach is its linear structure and being computationally tractable. The efficiency of the proposed models are evaluated through a real case study of Mashhad. The acquired results reveal the proposed WDS model have dramatically reduced the total costs. Simultaneously, the RO approach has risen robustness besides realization demonstrates its better performance than deterministic one.
ISSN:0098-1354
1873-4375
DOI:10.1016/j.compchemeng.2017.11.017