Yordanos Getnet and Sisay Demeku
This thesis focused on performance evaluation of water supply distribution system: case study Gudo Bahir, Bahir Dar, Ethiopia. The main objective of this study is to check the hydraulic performance of Gudo Bahir water distribution system by assessing losses of water, hydraulic performance of water distribution modeling and water supply and demand gap. Hydraulic network of the study area is simulated using Bentley Water GEMS V8i by using the data on the water distribution network of the area and master plan map of the town. The hydraulic simulation in the existing network system to satisfy the reliability of hydraulic parameters such as the pressure at a junction, head loss at each pipe material and flow of water were modeled. The water demand and supply of Gudo Bahir were not balanced. The daily water consumption of the area was 41 l/c/day used daily for different domestic activities with the billed water amount 1,619,591 m3/year was produced and 1, 087,704 m3/year was consumed and around 32.67% water was considered to be non-revenue (NRW). The level of connection in the study area was found 72.7%. The other observed big problem in Gudo Bahir area were intermittent water supply, pipe leakage, and one borehole creates a problem with the water distribution system line because it is directly joins the water distribution line without any disinfectants.
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