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Transient thermal problem

  1. Nov 21, 2007 #1
    Let's say I have a box, mounted to a plate in a vacuum (pure conduction). The system is initially at a steady state at temperature Ti. The plate then begins cooling at a rate of 3 C/min. The box is going to cool at some rate, and with some time constant. For this test, I have place a thermocouple on the box, so I can measure its response.

    Now I want to run it again such that the plate cools at a rate of 4 C/min. Is it possible to use the previous results to estimate the box's response for this new profile? If so, how could I go about doing it?

  2. jcsd
  3. Jan 26, 2008 #2
    vacuum does not necessarily mean conduction since there is also radiation. Your problem is rather ill defined. What are the dimensions, assumptions, why does the plate begins cooling?
    I cannot make up from you description if heat is going from the plate to the box or vise-versa
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