Browsing by Author "Dejene, Emebet"

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    Analysis of Hydraulic Performance and Water Loss Status using Water Balance Software in the Water Supply Distribution System of Yeka Abado Condominium in Addis Ababa
    (Addis Ababa University, 2021-10-13) Dejene, Emebet; Kebede, Andinet
    Water is a valuable resource that must be managed holistically in order to avoid scarcity. This study was carried out as part of the management to analyze hydraulic performance and water loss status in the water supply distribution system of Yeka Abado Condominium in Addis Ababa using water balancing software. To analyze water loss components and evaluate the system's performance, water balancing software was employed. The condominium's present water supply coverage was assessed using statistical analysis, and the hydraulic performance of the water distribution system was assessed using WaterGEMS V8i software. It was also used to add pressure-reducing valves to the system and assess the pressure reduction after they were installed. The average daily per capita water consumption and level of connection per family, according to the analysis, were 65 l/p/d and 17.3 percent, respectively. This demonstrates a lack of water supply coverage for condominium residents, which is mostly impacted by water scarcity. The findings of the water loss analysis, on the other hand, revealed that the overall water loss in the study area water supply system was 24.6 percent of the system input volume, with 96 percent of this being true loss and only 4% being apparent loss. The results revealed that the water loss value was modest, indicating that the system is in good working order. The WaterGEMS model, on the other hand, found that a number of junctions had pressures exceeding the maximum permissible pressure of 60 m. Pressure lowered valves were installed in the system to solve the high-pressure problem and reduce pipe leakage, and the changed pressures were within the standard's optimum level. As a result, maintaining appropriate pressure in the system to meet customer demands is necessary, as is restricting the optimal values to prevent leakage flow rate and the risk of pipe burst or fracture.