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Heat VS Distance

  1. Feb 22, 2012 #1
    Hi Guys,

    Is there an easy way to determine this?

    Say I have a 300mm Dia Pipe that @ 200deg C, ambient temp 30gec C.

    What would be the Temp 100mm away from the surface.

    Thanks in advance
  2. jcsd
  3. Feb 22, 2012 #2


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    You need to specify what the pipe is made of, if it is painted/coated etc. Also you need to specify the composition of what you are measuring 100 mm away (another pipe? your face? air?) in order to determine what the temperature of that object would be. Otherwise you can only calculate the heat flux of the pipe.

    This link will provide some useful guidance: http://www.engineeringtoolbox.com/radiation-heat-transfer-d_431.html
  4. Feb 22, 2012 #3
    The pipe is made of unpainted steel and I would like to know the temp of air.
  5. Feb 22, 2012 #4


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  6. Feb 22, 2012 #5
    So if I had a 300mm X 600mm Steel Plate who's surface temp is 200deg C

    What would be the temp of Air 100mm From the surface?

    What the equation to work this out?

  7. Feb 24, 2012 #6
    Bump, Help Please
  8. Feb 28, 2012 #7
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