1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Nuclear Powerplant Efficiency

  1. Feb 6, 2008 #1
    [SOLVED] Nuclear Powerplant Efficiency

    1. The problem statement, all variables and given/known data
    A nuclear power plant operates at 78% of its maximum theoretical (Carnot) efficiency between temperatures of 540°C and 330°C. If the plant produces electric energy at the rate of 1.3 GW, how much exhaust heat is discharged per hour?

    2. Relevant equations
    1)e=(Qh-Qc)/Qh
    2)e=W/Qh
    3)e=1-(Tc/Th)

    3. The attempt at a solution
    e=(Qh-Qc)/Qh, so...
    e=[(540+273)-(330+273)]/(540+273)
    e=.258302583
    e=.258302583(.78) since its operating at 78% efficiency
    e=.2014760148
    e=W/Qh, so...
    .2014760148=(1.3*10^9)(60))/Qh
    Qh=3.87*10^11
    e=1-(Qc/Qh), so...
    Qc/3.87*10^11=(1-.2014760148)
    Qc=3.091*10^11
    3.091*10^11*60
    Qc=1.855*10^13 J/h

    I don't know where I went wrong???
     
    Last edited: Feb 6, 2008
  2. jcsd
  3. Feb 6, 2008 #2
    nevermind i had it right all along doh!!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Nuclear Powerplant Efficiency
  1. Efficiency of a hill (Replies: 7)

  2. Efficiency PowerPlant (Replies: 4)

  3. Transformer efficiency (Replies: 2)

Loading...