Engineering, 13.10.2020 05:01 trinityrolle529

A peak-load generator is to be powered by a simple gas turbine with free power turbine delivering 20 MW of shaft power. The following data are applicable: Compressor pressure ratio 11.0
Compressor isentropic efficiency 0.82
Combustion pressure loss 0.4 bar
Combustion efficiency 0.99
Turbine inlet temperature 1150 K
Gas-generator turbine isentropic efficiency 0.87
Power turbine isentropic efficiency 0.89
Mechanical efficiency (each shaft) 0.98
Ambient conditions pa, Ta 1 bar, 288 K

Required:
Calculate the air mass flow required and the SFC.

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A peak-load generator is to be powered by a simple gas turbine with free power turbine delivering 20...