Hydraulic Transient Analysis of Surge Tanks: Case Study of Satpara and Golen Gol Hydropower Projects in Pakistan

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Published: Jun 22, 2016

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Ghulam Nabi
Habib -ur- Rehman
Muhammad Kashif
Muhammad Tariq

Abstract

Surge tanks are used for dissipate the water hammer pressure in high head hydropower project. Commonly used surge tanks have one surge chamber. A double chamber surge tanks were introduced in two high head hydropower projects in Pakistan. In the present study hydraulic design of surge tanks for the two potential sites in Pakistan were analyzed for surge wave height and time to dissipate. Surge tanks designed for Golen Gol hydropower project and Satpara hydropower project were analyzed for the hydraulic transient under the two operational scenarios i.e. complete closure and complete opening. It was concluded that for Satpara hydropower plant, surge tank without chamber and surge tank with two chambers produces high range of surges to cause undesirably heavy governor movement. While surge tank with lower chamber produces the minimum surge height as compared to other types, so the hydraulic behavior of surge tank with lower chamber is more stable than other types of surge tanks. Similarly for Golen Gol hydropower plant surge tank with two chambers produces better surge protection as compared to surge tank with single chamber and no chamber

Article Details

Issue
2011: Volume 8 JAN 2011
Section
Civil Engineering,Structures, Construction, Geo technology, Water, Transportation

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