# Answer to Question #4642 in Molecular Physics | Thermodynamics for Siva

Question #4642

A gas turbine has an overall pressure ratio of 5 and a maximum cycle temperature of 550 celcius. The turbine drives the compressor and an electric generator, the mechanical efficiency of the drive being 97%. The embient temperature is 20 celcius and airs enter the compressor at rate of 15 kg/s, the isentropic efficiencies of the compressor and turbine are 80% and 83%. Neglecting changes in kinetic energy, the mass flow rate of fuel, and all pressure losses, calculate

a)the power output

b)the cycle efficiency

c)the work ratio

a)the power output

b)the cycle efficiency

c)the work ratio

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