Question 3:

The Mitsubishi M501JAC Series is one of the cutting-edge gas turbines. The inlet temperature that the turbine can handle is 1600ºC due to combination of effective cooling technologies and advanced thermal barrier coating. The pressure ratio across the compressor is 23. The inlet temperature to the compressor is 300 K. Assuming that the compressor and turbine has the same isentropic efficiency, perform your calculations on cycle performance for a simple gas power plant (Brayton Cycle) with isentropic efficiencies of 87.5%, 90% and 92.5%. Give your judgement on what the isentropic efficiency of the turbine is by comparing it with the data available for the Mitsubishi M501JAC Series Turbine – as shown below.

To know more about the performance of Mitsubishi’s J-series, please see:

https://power.mhi.com/products/gasturbines/lineup/m501j