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Thermal conductivity problem

  1. Jul 20, 2008 #1
    Hello. As you can see, I'm new here.
    I have a little experience in physics and I've taken through Calc 2 in college.

    I'm trying to build a portable air conditioning unit. My current design consists of a tub of water with a 6" cube-shaped container of some kind submerged in it containing dry ice, then pumping the water through a used heater core and using a fan to move air from around the core.

    My problem is what material to use for the container for the dry ice - I need to pick one with the highest possible thermal conductivity without allowing the water to freeze. (Also it has to be one I can buy online or in a store for relatively cheap and manipulate easily)

    I don't know how to manipulate thermal conductivity data to determine which material will work best here. Any help would be greatly appreciated.
     
  2. jcsd
  3. Jul 20, 2008 #2

    Redbelly98

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    I would use some type of metal container. Then adjust the flow rate of the water: fast enough so that it does not freeze, slow enough so that it is cooled sufficiently.
     
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