(DE4438624-A1)      The indirect-heated has turbine cycle utilises hot cathode recycle gases to provide a substantial portion of the heat required for the indirect heating in the heat exchanger (22) of the compressed air from a compressor (16) used in the gas turbine cycle. A separate combustor (50) provides the balance of the heat needed for the indirect heating of the compressed air used in the gas turbine cycle. Hot gases from the fuel cell anode (36) are used in the combustor (50) to reduce both the fuel requirements of the combustor and the NOx emissions from it.    Residual heat remaining in the air-heating gases leaving the heat exchanger (22) is used in a boiler (62) to generate steam to drive a steam turbine (64) or run an absorption refrigeration cycle. Some of the hot gases from the cathode can be diverted from the air-heating function and used in the absorption refrigeration cycle or in the steam cycle for steam generating purposes.    ADVANTAGE -   Gas turbine can be operated at optimum pressures for efficient power conversion.    (JP7201349-A)      The indirect-heated has turbine cycle utilises hot cathode recycle gases to provide a substantial portion of the heat required for the indirect heating in the heat exchanger (22) of the compressed air from a compressor (16) used in the gas turbine cycle. A separate combustor (50) provides the balance of the heat needed for the indirect heating of the compressed air used in the gas turbine cycle. Hot gases from the fuel cell anode (36) are used in the combustor (50) to reduce both the fuel requirements of the combustor and the NOx emissions from it.    Residual heat remaining in the air-heating gases leaving the heat exchanger (22) is used in a boiler (62) to generate steam to drive a steam turbine (64) or run an absorption refrigeration cycle. Some of the hot gases from the cathode can be diverted from the air-heating function and used in the absorption refrigeration cycle or in the steam cycle for steam generating purposes.    ADVANTAGE -   Gas turbine can be operated at optimum pressures for efficient power conversion.    (US5449568-A)      The indirect-fired gas turbine cycle bottomed with a fuel cell cycle, comprising in combination compressor means for providing a stream of compressed air, indirect heat exchange means for receiving the stream of compressed air from the compressor means, means for supplying the heat exchange means with a stream of heated gases for indirectly heating the stream of compressed air, gas turbine means for receiving the heated stream of the heated compressed air, fuel cell means having anode means and cathode means, conduit means connecting the gas turbine means to the cathode means for conveying thereinto a stream of heated air discharged from the gas turbine means, fuel supply means coupled to the anode means for supplying fuel thereinto, said fuel at the anode means and said stream of heated air at the cathode means undergoing an electrochemical reaction within the fuel cell means for producing an electrical output while generating a stream of heated gases at the anode means and a stream of heated gases at the cathode means, and conduit means coupling the cathode means to the heat exchange means for conveying the stream of heated gases into the heat exchange means to provide at least a portion of the stream of heated gases supplied to the heat exchange means for indirectly heating the stream of compressed air.    (GB2283284-B)      The indirect-heated has turbine cycle utilises hot cathode recycle gases to provide a substantial portion of the heat required for the indirect heating in the heat exchanger (22) of the compressed air from a compressor (16) used in the gas turbine cycle. A separate combustor (50) provides the balance of the heat needed for the indirect heating of the compressed air used in the gas turbine cycle. Hot gases from the fuel cell anode (36) are used in the combustor (50) to reduce both the fuel requirements of the combustor and the NOx emissions from it.    Residual heat remaining in the air-heating gases leaving the heat exchanger (22) is used in a boiler (62) to generate steam to drive a steam turbine (64) or run an absorption refrigeration cycle. Some of the hot gases from the cathode can be diverted from the air-heating function and used in the absorption refrigeration cycle or in the steam cycle for steam generating purposes.    ADVANTAGE -   Gas turbine can be operated at optimum pressures for efficient power conversion.