what is the role of super-heater in a boiler?
Priya, the super-heater adds power AND efficiency to the system, by efficiently adding heat to the working medium, usually water (steam). The medium will come out of the boiler at the heat of vaporisation for the boiler pressure. If the boiler pressure is atmospheric and the medium is water, that temperature will be around 212 degrees F, depending on the height of the boiler above sea level (the HIGHER the LESS the atmospheric pressure, and the LOWER the boiling temperature). The higher the temperature of the medium, the higher the power and greater the efficiency of the system. so to increase both, either the pressure in the boiler can be increased or the temperature of the medium increased through the use of the super-heater. Often the system designer will choose to do both! Hope this helps - CQ
