Air enters the gas turbine cycle of Fig. 9.44 at 25°C and 100 kPa with a flow rate of 1.2 kg/s. It is compressed so that the temperature at state 2 is 400°C. The temperature entering the turbine is 1400ºC. Assuming constant specific heats for the air and ideal conditions in all components, calculate:
i) The thermal efficiency
ii) The heat added in the combustor
iii) The net power produced by the cycle
iv) The back-work ratio
Figure 9.44

Transcribed Image Text:

in Combustor Heat ดไ exchanger 1 IC) 800°C Compresson Turbine net โย) 100 kPa 25°C Heat exchanger