American Society of Civil Engineers

Hydraulic Transient Analysis of High-Head Hydropower Project

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

pp. 352-357

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Document type: Conference Proceeding Paper
Part of: Hydraulic Engineering
Abstract: 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 Finchaa Hydropower Project in Ethiopia which was built about 1973.

ASCE Subject Headings:
Case studies
Computer aided simulation
Hydraulic transients
Hydro power
Water hammer

Author Keywords:
Water Hammer
Hydroelectric Power Plants--Ethiopia - Mathematical Techniques--Iterative Methods - Pipelines--Flow - Pressure Effects
Case Study - High-Head Hydropower Project - Hydraulic Transient Analysis - Method of Characteristics - Surge Levels - Valve Closure