A superheater is a device used to convert saturated steam or wet steam into superheated steam or dry steam. Superheated steam is used in steam turbines for electricity generation, steam engines, and in processes such as steam reforming. There are three types of superheaters: radiant, convection, and
separately fired. A superheater can vary in size from a few tens of
feet to several hundred feet (a few metres to some hundred metres).
Power plant furnaces may have a reheater section containing tubes
heated by hot flue gases outside the tubes. Exhaust steam from the
high-pressure turbine is passed through these heated tubes to
collect more energy before driving the intermediate and then
Superheater is to increase the temperature of the steam above its saturation
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.
|Material||carbon steel, alloy steel , or durable heat steel|
|Tube W.T.||0.8mm- 15mm|
vertical or horizontal
Related Industry: Power Generation
The steam superheater aids in the drying of process steam. To
maintain optimal performance of the system water vapor must be
removed from the steam turbine system.