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I Heat transfer by radiation and Temperature difference

  1. Dec 14, 2016 #1
    Hello all, this is related to a project that I am working on.

    It is not directly related to the project but as part of it, I thought it would be a good idea to check the temperature difference that I need to maintain in order to effectively transfer a certain amount of heat between the TH in a refrigeration cycle and the environment.

    The heat that I need to transfer is the amount of heat generated by the human body while performing physical activities. The rate is averaged at 400 W. For 8 hours that is a total of 11520 kJ of heat. The environment is on Mars where the atmosphere is 100 times thinner than Earth.

    Thanks in advance!
     
  2. jcsd
  3. Dec 15, 2016 #2

    Nidum

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    Temperature difference needed depends on the design of the heat dissipating element and nature of the environment .

    So what can you tell us about :

    The element configuration ?

    The heat transfer mode ? You say radiation but could convection also be relevant or even possibly dominant ?

    The environmental conditions ?
     
    Last edited: Dec 15, 2016
  4. Dec 15, 2016 #3

    Nidum

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    In the real situation it would not be a simple case of removing excess body heat .

    The need would be to maintain body temperature within safe limits . Heating or cooling might be needed at any time as working and environmental conditions changed .
     
    Last edited: Dec 15, 2016
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