Patent ID: 7827792

Claim:
A refrigerant cooled main steam condenser binary system with increased power output and reduced fuel consumption comprising a steam cycle and a refrigerant cycle, a main steam evaporator condenser ( 1 ) for condensing the exhaust steam from a steam turbine ( 12 ) and evaporating the refrigerant liquid of said refrigerant cycle, an inner cooler ( 2 ) for removing excess heat of the exhaust refrigerant gas from said main steam evaporator condenser ( 1 ) before said refrigerant gas entering a refrigerant compressor ( 3 ), a refrigerant condenser ( 4 ) for condensing the hot refrigerant gas from said compressor to form refrigerant liquid before sending said refrigerant liquid to a refrigerant receiver ( 5 ), an expansion valve ( 6 ) for controlling the input of said refrigerant liquid into said main steam evaporator condenser ( 1 ), a hotwell under said evaporator condenser ( 1 ) for collecting water formed by steam condensate, a pump ( 8 ) for pumping said water through a feedwater heater ( 9 ), a feedwater pump ( 10 ) for delivering the water to a boiler ( 11 ), said boiler generating steam for said steam turbine ( 12 ), said steam turbine ( 12 ) having a common shaft to drive a generator ( 15 ) and said refrigerant compressor ( 3 ), an exhaust steam trunk ( 13 ) for delivering the exhaust steam from said steam turbine ( 12 ) to said evaporator condenser ( 1 ), an air ejector ( 14 ) removing inert gases from said evaporator condenser ( 1 ).