my question is are there is a imperical relation betwen vaccum and steam turbine genaration(load).Also how vaccum correction by relative humidity&cooling water inlet temp.
The steam turbine itself is a device to convert the heat in steam to mechanical power. The difference between the heat of steam per unit weight at the inlet to the turbine and the heat of steam per unit weight at the outlet to the turbine represents the heat which is converted to mechanical power. Therefore, the more the conversion of heat per pound or kilogram of steam to mechanical power in the turbine, the better is its efficiency. By condensing the exhaust steam of a turbine at a pressure below atmospheric pressure, the steam pressure drop between the inlet and exhaust of the turbine is increased, which increases the amount of heat available for conversion to mechanical power. Most of the heat liberated due to condensation of the exhaust steam is carried away by the cooling medium (water or air) used by the surface condenser.
What you need to do is go to your steam tables and subtract the enthalpies at your different pressures/temperatures.
Steam Turbine Suface Condenser Vaccum
Re: steam turbine suface condensor vaccum
