Patent ID: 6052997
Filing Date: 2000-04-25
Classification: F01K

Abstract:
In a combined cycle low temperature engine system having an absorption refrigeration subsystem with a circulating refrigerant medium for providing to the engine system a continuous-flow low temperature heat sink, the circulating refrigeration medium having a refrigerant vapor condensation path and a turbine cycle having a turbine with an upper and lower turbine section each provided with a turbine inlet and turbine outlet and providing a circulating turbine media having a vapor expansion path through a sub-ambient temperature portion of the turbine cycle, the improvement comprising:a reheat energy source located along the absorption refrigeration subsystem for admitting sub-ambient vapor extracted from the sub-ambient temperature portion of the vapor expansion path in heat exchange communication with condensing refrigerant medium being of a temperature higher than that of the extracted vapor, thereby permitting heat energy from the condensing refrigerant medium to be transmitted to the extracted turbine vapor, said heated vapor being returned by conduit means to the inlet of the turbine at a temperature higher than it possessed at its extraction point to continue its expansion through the remaining portion of the turbine cycle.