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Homework Help: Power plants

  1. Feb 19, 2008 #1
    I desperately need help with a equation. During a planning stage of a steam plant it was determent that 21 650 kg steam per hour at a pressure of 0.5 MPa and a temperature of 200 deg C were required.The available feed water temperature is 34,6 deg C.The efficiency of the plant is 70% and wast gasses will be used for the heating of the plant the temperature of the gasses is 760 deg C while the atmospheric temp is 15 deg C

    Calculate
    a)the mass of wast gas required
    b)the temperature of the gasses
    1)leaving the evaporator
    2)leaving the superheater
    3)leaving the economizer
    c)temp of water leaving the economizer

    Please help me
     
    Last edited: Feb 19, 2008
  2. jcsd
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