Transient Analysis of the Finchaa Hydroelectric Project

by T. Giorgis Goitom, Michael Baker, Jr., Inc, United States,
Stephen R. Bonema, Michael Baker, Jr., Inc, United States,

Document Type: Proceeding Paper

Part of: Waterpower '89


An iterative computer simulation procedure called LIQT (Liquid Transient), which performs simulations of hydraulic transients in closed conduit hydro-power systems, is used to estimate the magnitude of waterhammer pressures and surge levels during several transient process. LIQT procedure employs the Method of Characteristics procedure and models an array of pipeline hardware, including pumps, turbines, valves and surge protection devices. The main objective of this study is to determine the maximum and minimum transient pressures along the power conduit for various loading conditions so as to determine the allowable closure rate of the needle valves for the Pelton units. The case study used is the high-head Finchea Hydropower Project in Ethiopia which was built about 1973.

Subject Headings: Transient response | Hydro power | Project management | Case studies | Computer models | Hydraulic transients | Conduits | Water hammer | Ethiopia | Africa

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