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Temperature at the tip of a fin

  1. Feb 18, 2014 #1
    1. The problem statement, all variables and given/known data
    jQuuEp8.png

    3. The attempt at a solution
    I initially found the temperature tip without accounting for the corrected length. But the solution uses the corrected length for finding the temperature which doesn't make sense to me. Don't we want the temperature at the tip L, if we find the temperature at the corrected length then that isn't the ACTUAL temperature, it is an approximation we use to find efficiency I thought?

    Both answers are pretty close, only off by around 0.01 C.

    Here is my solution along with the relevant equations:
    OTduogE.jpg

    Here is the textbook solution:
    fDwRg9R.png
     
    Last edited: Feb 18, 2014
  2. jcsd
  3. Feb 18, 2014 #2

    BvU

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    Science Advisor
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    Gold Member

    Dear animal,

    Love this exercise. Can't get up to speed quick enough, so can't help you. Do find it interesting you worry about .01 degree if h is given in 1 decimal. Just try to imagine how hard it is to establish this h !

    Interesting thread, will look at what comes out.
     
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