Question

A gas turbine power plant operates on a Brayton cycles has a pressure ratio of 7....

A gas turbine power plant operates on a Brayton cycles has a pressure ratio of 7. Air enters the
compressor at 300 K. The energy in the form of heat is transferred to the air in the amount of 950
kJ/kg. Using a variable specific heat for air and assuming the compressor isentropic efficiency is
83 percent and turbine isentropic efficiency is 85 percent. Determine the followings:
(i) The highest temperature in the cycle
(ii) The net work output, in kJ/kg
(iii) The back work ratio
(iv) The thermal efficiency.
(v) Show the cycle on T-s diagram

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