The location of surge tank is close to ____________.

SOLUTION

Concept:

A surge tank in a hydroelectric power plant is an open tank that is often used with the pressure conduit of considerable length. The location of surge tank is at the turbine gate.

• The main purpose of providing a surge tank is to reduce the distance between free water surface and turbine, thereby reducing, the water hammer effect on the penstock and also protect the upstream tunnel from high pressure rises.
• It also serves as a supply tank to the turbine when the water to the pipe is accelerating during increased load conditions and as a storage tank when the water is decelerating during reduced load conditions.