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Discussion :: GATE Mechanical

  1. In a simple Brayton cycle, the pressure ratio is 8 and temperatures at the entrance of compressor and turbine are 300 K and 1400 K, respectively. Both compressor and gas turbine have isentropic efficiencies equal to 0.8. For the gas, assume a constant value of cp (specific heat at constant pressure) equal to 1 kJ/kgK and ratio of specific heats as 1.4. Neglect changes in kinetic and potential energies. 
    The power required by the compressor in kW/kg of gas flow rate is
    2. A.
    194.7
    B.
    243.4
    C.
    304.3
    D.
    378.5

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    Workspace

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    Answer : Option C

    Explanation :

    -NA-

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