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Development of optimal water distribution system design and operation approach considering hydraulic and water quality criteria in many-objective optimization framework
Journal of Computational Design and Engineering ( IF 4.9 ) Pub Date : 2022-03-21 , DOI: 10.1093/jcde/qwac017
Young Hwan Choi 1
Affiliation  

Abstract Water distribution systems (WDSs) are major infrastructure, and it needs to consider economic, hydraulic stability, and water quality safety to optimal design and operation of WDSs. However, the previous studies related to WDS design and operation were focused on each field (i.e. design: optimal pipe diameter, pump sizing, and valve location; operation: optimal pump scheduling, etc.) even though the WDS design and operation have a correlation. Therefore, to achieve economic feasibility, hydraulic stability, and water quality safety under WDS design and operation process, this study develops an optimal WDS design and operation approach considering hydraulic and water quality criteria in the many-objective optimization framework. To consider design and operation, this study applies three objective functions to minimize the total design and operation cost (i.e. the pipe cost, pump construction, and pump operation cost), maximize system robustness, and minimize the amount of chlorine requisition simultaneously under the hydraulic and quality constraints. The proposed optimal WDS design and operation model was applied to the two-stage optimization procedures. The first process determined the optimal pipe diameter set. The second process determined the optimal pump construction and scheduling considering three objective functions such as the total pump cost, the system robustness, and the quantity of the required residual chlorine for determining optimally the available number of pumps, capacity, and scheduling. For the optimization, the self-adaptive multi-objective harmony search is used and a famous benchmark network for the optimal design and pump operation of WDSs is applied to verify the proposed approach. This study can provide a new perspective on WDS design and operation technique considering the essential design factors to the water utility.

中文翻译:

在多目标优化框架中开发考虑水力和水质标准的最优配水系统设计和运行方法

摘要 配水系统(WDSs)是主要的基础设施,需要考虑经济性、水力稳定性和水质安全性来优化WDSs的设计和运行。然而,以往与 WDS 设计和运行相关的研究都集中在各个领域(即设计:优化管径、泵尺寸和阀门位置;运行:优化泵调度等),尽管 WDS 设计和运行具有相关性。 . 因此,为了在 WDS 设计和运行过程中实现经济可行性、水力稳定性和水质安全,本研究在多目标优化框架中开发了一种考虑水力和水质标准的最优 WDS 设计和运行方法。考虑设计和操作,本研究应用三个目标函数来最小化总设计和运行成本(即管道成本、泵结构和泵运行成本),最大限度地提高系统稳健性,并在水力和质量约束下同时最大限度地减少氯的需求量。将所提出的最优 WDS 设计和运行模型应用于两阶段优化程序。第一个过程确定了最佳管径设置。第二个过程考虑三个目标函数,如总泵成本、系统鲁棒性和所需余氯量,确定最佳泵的构造和调度,以最佳地确定可用的泵数量、容量和调度。对于优化,使用自适应多目标和谐搜索,并应用著名的 WDS 优化设计和泵运行基准网络来验证所提出的方法。考虑到水务公司的基本设计因素,本研究可以为 WDS 设计和操作技术提供新的视角。
更新日期:2022-03-21
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