Water enters the pump of a steam power plant as saturated liquid at 20 kPa at a rate of 45 kg/s and exits at MPa. Neglecting the changes in

Question

Water enters the pump of a steam power plant as saturated liquid at 20 kPa at a rate of 45 kg/s and exits at MPa. Neglecting the changes in kinetic and potential energies and assuming the process to be reversible, determine the power input to the pump.

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Vodka 4 years 2021-08-29T13:18:32+00:00 1 Answers 3 views 0

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  1. thuhuong
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    2021-08-29T13:20:28+00:00
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    Answer:power input =44.85kw

    Explanation:

    V=0.001017m³/kg

    The power input of the pump

    W=mv(p2-p1)

    =45*0.001017*(1000-20)

    45*0.001017*980

    44.85kw

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