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Numerical and experimental investigation of the effect of the optimal usage of pump as turbine instead of pressure-reducing valves on leakage reduction by genetic algorithm
Energy Conversion and Management ( IF 10.4 ) Pub Date : 2022-09-24 , DOI: 10.1016/j.enconman.2022.116253
Sohrab Hanaei, Esmail Lakzian

The leakage, caused by design problems, pipe breakage, and fittings' failure, is a critical challenge that the beneficiaries face in the water distribution networks (WDNs). Control and management of the network pressure have always been considered helpful solutions to reduce the leakage in these systems. In the present study, locating and setting of the five pressure reducer valves (PRVs) have been optimized using GA (genetic algorithm) to minimize the leakage and make uniform pressure. Results show that the network leakage has reduced 21% from 34.53 lit/s to 27.26 lit/s. In the next step, the PRVs are replaced by two pumps as turbines (PATs) at two desirable points for converting extra elevation head of the real gravity WDN to generate electricity. It is also found that the performance of PATs in reducing the amount of leakage is similar to PRV, and there are slight differences. Therefore, nearly 153 MW/year is generated using two PATs that resulted in 15,000 $/year in cost-saving. As estimated, the cost for installing and operating two PATs is $14,000, so the return on capital will be at least one year.



中文翻译:

遗传算法优化泵作为涡轮代替减压阀使用对减少泄漏影响的数值和实验研究

由设计问题、管道破损和配件故障引起的泄漏是受益人在配水网络 (WDN) 中面临的关键挑战。管网压力的控制和管理一直被认为是减少这些系统泄漏的有用解决方案。在本研究中,五个减压阀 (PRV) 的定位和设置已使用 GA(遗传算法)进行了优化,以最大限度地减少泄漏并保持压力均匀。结果表明,网络泄漏量从 34.53 lit/s 减少了 21% 到 27.26 lit/s。在下一步中,PRV 在两个理想点被两个泵作为涡轮机 (PAT) 代替,用于将真实重力 WDN 的额外高程水头转换为发电。还发现PATs在减少泄漏量方面的表现与PRV相似,但略有差异。因此,使用两个 PAT 可产生近 153 兆瓦/年的发电量,从而节省了 15,000 美元/年的成本。据估计,安装和运行两个 PAT 的成本为 14,000 美元,因此资本回报将至少为一年。

更新日期:2022-09-25
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