In: Mechanical Engineering
The pressure ratio of a Brayton cycle with air operated regenerator is 8. The lowest and highest temperatures of the cycle are 310 K and 1150 K. The adiabatic efficiency of the compressor and turbine is 75% and 82%, respectively, and the efficiency of the regenerator is 65%. Show the cycle in the T-s diagram. Consider the variation of specific temperatures with temperature.
a) Calculate the temperature of the air at the turbine outlet,
b) Net work of the cycle,
c) Calculate the thermal efficiency of the cycle.