Question

What is the use of a reheater in the thermal power plant?

Answer 1

A reheater is basically a superheater that superheats steam exiting the high-pressure stage of a turbine. The reheated steam is then sent to the low-pressure stage of the turbine. By reheating steam between high-pressure and low-pressure turbine it is possible to increase the electrical efficiency of the power plant cycle beyond 40%.The reheat cycle is used in large power boilers since it is feasible economically only in larger power plants. Reheater design is very much similar to superheater design because both operate at high temperature conditions.

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