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Optimizing pump operations in water distribution systems: energy cost, greenhouse gas emissions and water quality
Author(s) -
GüngörDemirci Gamze,
Lee Juneseok,
Keck Jonathan
Publication year - 2020
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12583
Subject(s) - greenhouse gas , environmental science , water quality , constraint (computer aided design) , environmental engineering , environmental economics , engineering , economics , ecology , mechanical engineering , biology
In this study, a multiobjective optimization approach was adopted to optimize pumping operations by minimizing energy cost and greenhouse gas (GHG) emissions while considering water quality either as an additional objective or as a constraint. When water quality was not included, a trade‐off between energy cost and GHG was found. Including water quality as a constraint led to an overall increase in energy cost and GHG emissions while keeping trade‐offs between the objectives. When water quality was included as a third objective, there was a positive correlation between energy cost and GHG emissions, but a negative correlation was found between water quality and the other two quantities (energy cost and GHG). The three‐objective formulation enabled a deeper understanding of each individual solution, while also providing a wider range of possible alternatives to consider.