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Cold store and loading dock design to minimize condensation and coil frosting problems.

Author(s) : CLELAND D. J.

Summary

Two frequent problems for refrigerated storage facilities are condensation/icing in loading docks and very rapid decline of cooling coil performance due to formation of "unfavourable" frost if the air becomes super-saturated as it is cooled. Models of the main moisture transport processes that enable air relative humidity and the potential for condensation/icing and unfavourable frosting to be predicted are summarised. Use of the models for a typical facility with a cold store and loading dock showed that condensation and unfavourable frost formation are likely even if ambient conditions are not that extreme and moisture entry is reduced by doorway protection. Condensation/icing and unfavourable frosting can be best avoided by a combination of improved coil design (e.g. appropriate temperature difference) and enhanced door protection (especially doors opening to the ambient) but occasionally active dehumidification or special coil designs (e.g. staggered fin spacing) must be used.

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Pages: ICR07-D1-409

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Details

  • Original title: Cold store and loading dock design to minimize condensation and coil frosting problems.
  • Record ID : 2007-2723
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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