Results 1 to 2 of 2

Thread: Condensation - dew point

  1. #1
    Reinhard Guest

    can somebody tell me from what temperature on a filter or a duct work has to be thermically isolated to prevent condensation?

    Calculating the dewpoint or the relative humidity does not cause any problem, but how far away do we have to be from these?

    Working temperatures are around 80°C.


  2. Dear Reinhard,

    If the temperature outside the pipe/duct is well above the maximum possible dew point there is no need of insulation to prevent condensation outside the pipe / duct. Please note that dew point vary depending on relative humidity. If the criteria is only to prevent condensation providing sufficient insulation to keep surface temperature within about 5 degree above dew point should suffice.

    In most cases prevention of condensation is not the sole criteria for providing an insulation. The other criteria being
    • Reduce wastage of energy in heating / cooling
    • Control surface temp for personnel and equipment protection.
    • Control the temp. of commercial and industrial processes

    etc to name a few

    You may visit where some frequnetly asked questions are answered

    Good Luck


Similar Threads

  1. Condensation Separator
    By Jaybee in forum Pneumatic Conveying
    Replies: 18
    Last Post: 11th July 2010, 9:49
  2. Likert Scales --> Averaging Different Scales (4-point & 5-point)
    By mathy in forum Sampling, Inspection & Statistics
    Replies: 1
    Last Post: 23rd March 2009, 23:12
  3. Water Condensation in Convey Air
    By Teus Tuinenburg in forum Pneumatic Conveying
    Replies: 1
    Last Post: 9th May 2006, 19:44
  4. Condensation of Moisture Inside Idlers
    By krgiri in forum Trough Belt Conveying
    Replies: 4
    Last Post: 14th November 2002, 14:31
  5. Condensation of Moisture Inside Idlers
    By krgiri in forum Ask Lyn Forum
    Replies: 0
    Last Post: 23rd October 2002, 8:20

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Single Sign On provided by vBSSO