A Brayton cycle inlet is at 300 K, 100 kPa and the combustion adds 670kJ/kg. The maximum

Question:

A Brayton cycle inlet is at 300 K, 100 kPa and the combustion adds 670kJ/kg. The maximum temperature is 1200 K due to material considerations. What is the maximum allowed compression ratio? For this calculate the net work and cycle efficiency assuming variable specific heat for the air, table A.7.