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Sweating on line

  1. Jul 18, 2008 #1
    Why sweating on line occures when Air flow from high pressure(6.5kg/cm2g) to Low pressure(0.1kg/cm2g)?
    Is this because of air expansion?
    Then Why sweating not occur if Air flows from high pressur(6.5 kg/cm2g) to atmosphere?
  2. jcsd
  3. Jul 19, 2008 #2


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    Science Advisor

    You need to describe the situation better. From the sounds of it, you are experiencing condensation on the outside of a pipe simply because of the expansion and resultant cooling of the media. If the cooling is below that day's dew point, you'll get condensation.

    What is your situation exactly?
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