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Homework Help: Thermodynamic questions

  1. Dec 9, 2007 #1
    1. The problem statement, all variables and given/known data
    consider an ideal rankine cycle with 1 open feedwater heater, the operates at a condenser pressure of 1inch of mercury absolute pressure and a turbine inlet pressure of 950psig and 850 deg F. The cycle produces turbine output power of 30MW.
    a)draw system diagram---done
    b)first determine the amout of turbine extraction steam flow rate for a turbine inlet flow of 100 lb/h to heat the feedwater water to 325 deg F and state the gauge pressure of the extraction steam. ---- no idea how to set this up,
    c)determine the actual amount of extraction stream(lb/h) to produce 30MW fo turbine power. ----im guessing this would be easily done once i figure out part b
    d)cycle efficiency --- i see no problem in doing this part
    e) t-s diagram-----done.

    2. Relevant equations

    3. The attempt at a solution
    nothing noteworthy....i need most of the help on getting started and setting up, i am pretty sure everything else will follow pretty easily from there
  2. jcsd
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