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    Entropy Generation in a Steam Turbine

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    Steam at a rate of 15lbm/s enters a turbine at 500 Psia, 800f and exits at 5 Psia. For a reversible, adiabatic process (iseentropic), what is the work out of the turbine in Btu/s and what is the entropy generation?

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    Solution Preview

    You need to determine the condition of the input steam. Use the accompanied references.

    At 500 Psia and 800F, the inlet steam is superheated. Thus s1 = 1.6571 Btu/lbm R and h1 =1412.1 Btu/lbm
    Because ...

    Solution Summary

    The solution determines the entropy generated in a steam turbine.