供水分配系统绩效评价——以埃塞俄比亚奥罗米亚地区Muke Turi镇为例

IF 1.6 Q3 WATER RESOURCES Water Practice and Technology Pub Date : 2023-09-27 DOI:10.2166/wpt.2023.150
Solomon Ayele Negese, Habtamu Hailu Kebede
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引用次数: 0

摘要

在发展中国家的城市地区,充足和可持续的饮用水供应往往是一个挑战。本研究评估了埃塞俄比亚奥罗米亚州Muke Turi镇供水系统的性能。采用水地理空间工程建模系统(waterergems)模型对配电网进行水力分析。水损失由不同的指标确定,包括非收入水(NRW)、每个管道连接的损失(LPC)、每个主管道长度的损失(LMPL)、不可避免的年实际损失(UARL)和基础设施泄漏指数(ILI)。该城镇的供水覆盖率为43.34%,相当低。通过水力分析,54.2%的管道流速和60%的节点压力均在推荐范围内。NRW估计为37.61%,超过可接受的限度。其中,实际亏损占比最大,为37.14%。此外,LPC和LMPL分别为298 l/d和29,709 l/km/d,再次超过建议限值。根据ILI,每年的实际损失估计为UARL的4.31倍。最后,得出的结论是,该镇的供水不足,而高损失加剧了这一点。
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Performance evaluation of water supply distribution system: a case study of Muke Turi town, Oromia region, Ethiopia
Abstract Adequate and sustainable supply of potable water in urban areas of developing countries is often a challenge. This study assessed the performance of the water supply system in Muke Turi town, Oromia, Ethiopia. The Water Geospatial Engineering Modeling System (WaterGEMS) model was used for hydraulic analysis of the distribution network. The water losses were determined by different indicators including non-revenue water (NRW), losses per pipe connection (LPC), losses per main pipe length (LMPL), unavoidable annual real losses (UARL), and infrastructure leakage index (ILI). The water supply coverage of the town was found as 43.34%, which is considerably low. From the hydraulic analysis, the velocity of flow in 54.2% of the pipe and pressure at 60% of the nodes were found within the recommended ranges. The NRW was estimated at 37.61%, which is above the acceptable limit. Of which, the real losses are the major ones with 37.14%. Moreover, the LPC and LMPL were found to be 298 l/d and 29,709 l/km/d, respectively, which are again above the recommended limits. Based on ILI, the annual real losses were estimated to be 4.31 times the UARL. Finally, it was concluded that access to water in the town is inadequate which is exacerbated by high losses.
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来源期刊
CiteScore
2.30
自引率
6.20%
发文量
136
审稿时长
14 weeks
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