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Cool Dryer Return Air

Modified on Monday, 02 February 2015 01:01 PM by mpieler Categorized as Extrusion Hints
Cool Dryer Return Air
Vol. 26 #2, September 1999 and Vol. 26 #3, December 1999

When using a dehumidifying dryer to pre-dry moisture sensitive hygroscopic resins, it is important to monitor the dryer’s return air temperature carefully. If the return air temperature climbs above 150°F, the moisture loading capacity of the dehumidifying dryer will be reduced below its design specifications. A return air temperature of 180°F will reduce the dryer’s moisture loading capacity by 50%. It will also greatly shorten the life of the dryer’s blower.

- Pete Stoughton, Conair

See also:
  • Closed loop dryer
  • Dryer inlet air
  • Installing a dehumidifying drying system

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