Surge tank or surge tower operation benefits in three different ways. 1. It shortens the distance between the turbine inlet and the nearest free water surface, and thereby greatly reduces the intensity of the water hammer waves. 2. With a reduction of turbine load, the water level in the chamber rises until it exceeds the level in the main reservoir, thus retarding the main conduit flow and absorbing the surplus kinetic energy. 3. In case of increase of turbine load, the chamber act as a reservoir which will provide sufficient water to enable the turbine to pick up their new load safely and quickly and to keep them running at the increased load until the water level in the surge chamber has fallen below its original level. Sufficient head is thereby created to accelerate the flow of water in the conduit until it meets the new demand. via Ghulam Nabi1, Habib-ur-Rehman 2, Muhammad Kashif 3 and Muhammad Tariq 4 1 Assistant Professor Center of Excellence in Water Resources Engineering, University of Engineering and Technology, Lahore. 2 Professor Department of Civil Engineering, University of Engineering and Technology, Lahore. 3. Assistant Engineer Federal Flood Commission Quetta. 4. Professor, Centre of Excellence in Water Resources Engineering, UET, Lahore
Posted on: Wed, 04 Sep 2013 05:45:49 +0000
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