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Continuous dehumidification at sub-zero temperatures.

Author(s) : HEWETT D.

Type of article: Article

Summary

In a food processing system using low temperature cooling by a jacketed vessel, moisture from factory air will condense on the jacket, causing unhygienic conditions. To overcome this the author describes a plant for dehumidifying factory air to below dewpoint on a sub-zero surface. As the food process was continuous, dehydration was produced using two alternative dehumidifying coils, one hot gas defrosting while the other is cooling. The process plant was placed in an insulated room to reduce the heat load, and room air was recirculated with only sufficient fresh air added to pressurise the room. Cooling was by an R22 belt driven compressor plant. Defrost operation was by timer and a steam reheat coil was used. D.W.H.

Details

  • Original title: Continuous dehumidification at sub-zero temperatures.
  • Record ID : 1993-1396
  • Languages: English
  • Source: AIRAH J. - vol. 46 - n. 4
  • Publication date: 1992/04
  • Document available for consultation in the library of the IIR headquarters only.

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