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Failure assessment for drinking water distribution system in the case of Bahir Dar institute of technology, Ethiopia
Applied Water Science ( IF 5.7 ) Pub Date : 2021-07-15 , DOI: 10.1007/s13201-021-01465-7
Roman Abebe Mesalie 1 , Mekash Shiferaw Kifelew 1 , Dagnachew Aklog 2, 3
Affiliation  

In this paper, the issue of failure assessment in the drinking water distribution system was presented. This specific study was conducted on the water distribution system on the campus of Bahir Dar Institute of Technology. The current problem in Bahir Dar institute of technology is that the water infrastructure is aging and has not been spending adequate to repair, replace, or rehabilitate drinking water distribution systems. This develops higher stresses on the water distribution network causing pipes to crack, or rupture permanently while in service. Due to this problem, the whole water supply components in the distribution network led to increased water loss and quality reduction. The general objective of this study is to assess the risk of the water distribution system in the Bahir Dar Institute of technology water supply distribution system. In this study, a structural risk assessment was developed by using ARC GIS 10.5 and Water Cad V8i to get prioritize maps of the water distribution system and hydraulic analysis of the drinking water distribution system of the institute. In developing this assessment, the score was established based on the preset criteria to evaluate customer point risk and structural point risks such as water quality, water availability, pressure head adequacy, the flow rate of water, pipe, storage facility, and pump. Based on the result obtained from an equal weight approach, the score of the drinking water distribution system risk index is a medium level (2.56) with a low level of structural risk (2.5) and a medium level of consumer point risk (2.62). The results evaluated by the AHP method, structural risk has had the highest weight score (76%) which means it needs more priority than consumption point risk (24%), and the result of drinking water distribution system risk index laid at the medium level (2.7), it indicates the institution drinking water distribution system put at the satisfactory condition with the sum up the effect of medium structural risk index (2.65) and medium consumption point risk (2.82). Based on the findings and conclusions of the study, the components of the campus water supply distribution system, particularly parts of the pipe and the majority of the pump, should be replaced before they become obsolete, and suitable preventive measures should be taken.



中文翻译:

以埃塞俄比亚巴希尔达尔技术研究所为例的饮用水分配系统故障评估

在本文中,提出了饮用水分配系统中的故障评估问题。这项具体研究是在 Bahir Dar 理工学院校园内的配水系统上进行的。Bahir Dar 理工学院目前的问题是供水基础设施老化,并且没有花费足够的资金来维修、更换或修复饮用水分配系统。这会在配水网络上产生更高的压力,导致管道在使用中破裂或永久破裂。由于这个问题,分配网络中的整个供水组件导致水损失增加和质量下降。本研究的总体目标是评估 Bahir Dar 技术研究所供水分配系统中的供水系统风险。在这项研究中,使用ARC GIS 10.5 和Water Cad V8i 开发了结构风险评估,以获得该研究所的配水系统的优先图和饮用水配水系统的水力分析。在开发此评估时,该分数是根据预设标准建立的,以评估客户点风险和结构点风险,例如水质、可用水量、压头充足性、水流量、管道、存储设施和泵。根据等权重法得出的结果,饮水配送系统风险指数得分为中等水平(2.56),结构风险水平低(2.5),消费者点风险水平(2.62)中等。用AHP方法评价的结果,结构性风险的权重得分最高(76%),比消费点风险(24%)更需要优先考虑,饮水分配系统风险指数的结果处于中等水平(2.7),表明该机构中度结构风险指数(2.65)和中度消费点风险(2.82)综合影响,饮水配水系统处于满意状态。根据研究结果和结论,校园供水分配系统的部件,特别是部分管道和大部分泵,应在过时之前更换,并采取适当的预防措施。综合中等结构风险指数(2.65)和中等消费点风险(2.82)的影响,表明机构饮水配水系统处于良好状态。根据研究结果和结论,校园供水分配系统的部件,特别是部分管道和大部分泵,应在过时之前更换,并采取适当的预防措施。综合中等结构风险指数(2.65)和中等消费点风险(2.82)的影响,表明机构饮水配水系统处于良好状态。根据研究结果和结论,校园供水分配系统的部件,特别是部分管道和大部分泵,应在过时之前更换,并采取适当的预防措施。

更新日期:2021-07-15
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