Layout of Hydro Power Plant
Q. What are the parts of a hydroelectric power plant?
Q. How does hydroelectric power plant operate draw diagram
Q. How hydroelectric power plant works?
- Hydro electric plants require continuous flow of water with large amount of hydraulic energy. Such a source can be a natural lake or reservoir at the high level or it can be formed by constructing a dam across a river.
- Figure represents a layout of hydro-electric plant using a reservoir formed by constructing a dam. The water surface in the reservoir is known as head-race level.
- Water from storage reservoir is carried through penstocks to power house. The penstocks are pipes of cast iron or R.C.C. which carry water under pressure from reservoir to a turbine. When there is a distance between reservoir and power house, small reservoirs are provided near the power house and they are known as forebays and penstocks are connected to forebays. They are used to temporarily store water when not required by plant and supply the same when required.
- Water after passing through the turbines is discharged in the tail race. The water from tail race joins the natural stream of water at some point away from the power house or it may flow to the same river on which the dam is built on downstream.