A gas turbine power plant works between pressures of 1 bar and 5 bar and temperatures of 285 K and 1100 K. The intercooler cools the air at 2.3 bar to 285 K before the air is sent to the second stage...

A gas turbine power plant works between pressures of 1 bar and 5 bar and temperatures of 285 K and 1100 K. The intercooler cools the air at 2.3 bar to 285 K before the air is sent to the second stage compressor. The compressor air from the second-stage compressor passes through a regenerator having effectiveness of 0.72 and then through the combustion chamber. The heated air is then expanded in a high pressure turbine to 2.3 bar and is then reheated to 1100 K. The air is finally expanded in the low-pressure turbine to 1 bar. Assuming the compressor and turbine efficiencies to be 85%, determine: (i) the ratio of compression work to the turbine work, (ii) the power developed for an air flow of 3 kg/s, (iii) the thermal efficiency of the cycle, (iv) the heat rejected per second to the cooling water in the intercooler, and (v) the heat rejected per second to the atmosphere. Assume that all the components are mounted on the same shaft. Sketch the flow diagram of the turbine and represent the process on T-s plane. Also, assume cp = 1.005 kJ/kg.K and g = 1.4.