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    Rankine Open Cycle

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    Rankine Open Cycle has an Ideal steam reheat cycle where steam enters the high pressure turbine at 3 MPa and 400C and then expands to 0.8 MPa. It's then reheated at constant pressure of 0.8 MPa to 400C and expands to 10kPa in the low-pressure turbine. Each turbine stage is entropic efficiency of 85% FWH is open T-S diagram for cycle?

    What is thermal efficiency and the moisture content of the steam leaving the low-pressure turbine?

    © BrainMass Inc. brainmass.com October 9, 2019, 3:43 pm ad1c9bdddf
    https://brainmass.com/engineering/mechanical-engineering/rankine-open-cycle-11438

    Solution Preview

    ** For the chart, please see the attachment **

    P3=3MPa, T3=400Ã?°C
    P4=0.8MPa
    P5=P4=0.8MPa, T5=400Ã?°C
    P6=10KPa
    Eff-Isen=0.85%
    Eff-thermal=1-(qout/qin)
    qin=(h3-h2)+(h5-h4)
    Eff-Isen=(h5-h6)/(h5-h6s)=(h3-h4)/(h3-h4s)
    s5=s6=7.5716 ...

    Solution Summary

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