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  1. mechchem

    Mathematical model nitrogen cooling

    Hey guys! I am REALLY SORRY for the confusion. There is a thermal vacuum chamber. The shroud goes IN the thermal vacuum chamber so it won't be exposed to air. However the pipes won't be touching the inside surface of the vacuum chamber since there are about 12 teflon blocks (3 each at 0 deg, 90...
  2. mechchem

    Mathematical model nitrogen cooling

    Hey Prex, if you can expand on two points please. 1. "formulae for fins of uniform section". What are those? 2. "Now imagine this area to be a circle with the weld at the center: you could take the half radius as a distance and the section through thickness of the shroud at mid radius as the...
  3. mechchem

    Mathematical model nitrogen cooling

    I kept the window open after posting a reply since I expected quality and fast replies from the brothers/sisters on this forum. Thanks for the reply prex, you contributed in very good points. Maybe others can pitch in with something too. Thanks for your time.
  4. mechchem

    Mathematical model nitrogen cooling

    I am trying to solve a problem on a shroud that covers vacuum chamber. It isn't in contact with the chamber but they are separated by teflon blocks. A shroud is a metal enclosure which has pipes on it's surface through which heating or cooling materials flow. Liquid Nitrogen is used to achieve...

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