scholarly journals Solution of Water Distribution Networks Design with Evolutionary Optimization Techniques

Author(s):  
Büşra Seval DOĞAN ◽  
Tahir SAG
2017 ◽  
Author(s):  
Dagnachew Aklog ◽  
Yoshihiko Hosoi

Abstract. This paper discusses development of an easy-to-use, all-in-one model for designing optimal water distribution networks. The model combines different optimization techniques into a single package in which a user can easily choose what optimizer to use and can compare results of different optimizers to gain confidence on the performances of the models. At present, three optimization techniques are included in the model: linear programming (LP), genetic algorithm (GA), and a heuristic one by one reduction method (OBORM) which was previously developed by the authors. The optimizers were tested on a number of benchmark problems and performed very well in terms of finding optimal or near-optimal solutions with a reasonable computation effort. The results indicate that the model effectively addresses the issues of complexity and limited performance trust associated with previous models and thus can be used for practical purposes.


Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2235
Author(s):  
Samer El-Zahab ◽  
Abobakr Al-Sakkaf ◽  
Eslam Mohammed Abdelkader ◽  
Tarek Zayed

Maximizing benefit from budget allocation is a major challenge for municipalities in the modern era. This is especially significant when it comes to infrastructure network management such as water distribution networks. The main challenges of water distribution networks are leakage and leak repairs. Municipalities commonly use first-in-first-out approaches to determine which leaks to allocate budget for first. Yet, the deterioration of leaks is not linear through time and requires a more in-depth assessment of the condition of the leak. Therefore, this article presents two prioritization approaches for the scheduling of leaks while incorporating deterioration over time. This paper proposes and compares two optimization techniques: (1) a well-known genetic algorithm and (2) a novel approach named the Lazy Serpent Algorithm. The Lazy Serpent Algorithm has proved capable of surpassing the genetic algorithm in determining a more optimal order by using much less computation time. The Lazy Serpent Algorithm helps municipalities better distribute their resources to maximize their desired benefits.


2017 ◽  
Vol 10 (1) ◽  
pp. 33-38
Author(s):  
Dagnachew Aklog ◽  
Yoshihiko Hosoi

Abstract. This paper discusses the development of an easy-to-use, all-in-one model for designing optimal water distribution networks. The model combines different optimization techniques into a single package in which a user can easily choose what optimizer to use and compare the results of different optimizers to gain confidence in the performances of the models. At present, three optimization techniques are included in the model: linear programming (LP), genetic algorithm (GA) and a heuristic one-by-one reduction method (OBORM) that was previously developed by the authors. The optimizers were tested on a number of benchmark problems and performed very well in terms of finding optimal or near-optimal solutions with a reasonable computation effort. The results indicate that the model effectively addresses the issues of complexity and limited performance trust associated with previous models and can thus be used for practical purposes.


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