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Some basic questions about the second law efficiency (gas turbine cycle)

  1. Jan 5, 2015 #1
    hi ,

    will change first law efficiency proportional to second law efficiency?

    for example in gas turbine cycle, how change?

    other equation:

    hi ,

    will change first law efficiency proportional to second law efficiency?

    for example in gas turbine cycle, how change?

    other equation:

    How is the analysis the second law efficiency of combustion chamber in the cycle gas turbine?
    in fact, It depends on what factors (inlet and exit temperature compressor and turbine inlet temperature ,....)?

    tank you for your help.
     
  2. jcsd
  3. Jan 8, 2015 #2

    Mech_Engineer

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    Gold Member

    I assume you're referring to the Laws of Thermodynamics. The first and second laws are independent; neither of these laws refers to the other, and there are no unspoken linear relationships between the two that I'm aware of.

    Simply put, the first and second laws are:

    1. Conservation of energy between input, output, and storage of a system. Basically energy has to "go" somewhere and can be neither created nor destroyed.
    2. Process irreversibility- in a thermodynamic process there is an increase in the net entropy of the participating systems.
    Wikipedia: Laws of Thermodynamics
     
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