A gas turbine engine is considered in a race car design. Theengine operates on two stages of compression with intercooling andtwo stages of expansion. The pressure ratio across each stage ofthe compressor and the turbine is 7. The air enters each stage ofthe compressor at 300K and each stage of the turbine at 1300K.Using air standard assumptions determine:
Thermal efficiency and back work ratio if no regenerator isused;
Thermal efficiency and back work ratio if a regenerator witheffectiveness of 90 % is used