Combined rankine and vapor compression cycles
First Claim
1. A combination of a rankine cycle turbine generator system and an air conditioner comprising:
- a rankine cycle system including a boiler, a turbine for driving a generator, a condenser and a pump, wherein said boiler is heated from the exhaust gases of a gas turbine engine; and
a vapor compression system including an evaporator, a motor driven compressor, a condenser and a throttle valve, wherein said evaporator is adapted to cool inlet air flowing to said gas turbine engine.
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Abstract
An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor.
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Citations
16 Claims
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1. A combination of a rankine cycle turbine generator system and an air conditioner comprising:
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a rankine cycle system including a boiler, a turbine for driving a generator, a condenser and a pump, wherein said boiler is heated from the exhaust gases of a gas turbine engine; and
a vapor compression system including an evaporator, a motor driven compressor, a condenser and a throttle valve, wherein said evaporator is adapted to cool inlet air flowing to said gas turbine engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12)
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8. A method of generating power comprising the steps of:
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operating a gas turbine for driving a generator, said gas turbine having an inlet for receiving inlet air and an outlet for discharging exhaust gases;
operating an rankine cycle system having a boiler, a turbine for driving a generator, a condenser and a pump wherein said boiler is heated by pumped gas turbine exhaust; and
operating an air conditioning system having an evaporator, a motor driven compressor, a condenser and a expansion device, wherein said evaporator is applied to cool said gas turbine inlet air. - View Dependent Claims (9, 10, 13, 14, 15)
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11. A method as set forth in claim wherein 10 said refrigerant is an organic refrigerant.
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16. A method of generating power comprising the steps of:
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heating a boiler to generate a high pressure vapor;
applying said high pressure vapor to a turbine and responsively driving a generator to produce electrical power while converting said high pressure vapor to a low pressure vapor;
causing said lower pressure vapor to flow to a condenser where it is condensed to a liquid;
pumping at least a portion of said liquid to said boiler;
passing a portion of said liquid to an expansion valve where it is flashed to a liquid/vapor mixture, and passing said mixture to an evaporator for conversion to a vapor;
passing said vapor to a compressor for compressing it to a high pressure and vapor;
andpassing said high pressure vapor to said duplex condenser.
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Specification