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The design considerations of single-band air curtains used in multi-deck refrigerated display cabinets.

Author(s) : CHEN Y., YUAN X.

Summary

The performance of cold air curtains is of great importance for food storage and energy saving for multi-deck refrigerated display cabinets. Sealing ability of recirculated single-band cold air curtains was numerically studied in the present study for design purpose. The results indicate that cold air curtains are negatively buoyant jets and flows toward the inside cabinet due to stack pressure, therefore the initial momentum must be sufficient large to sustain the pressure difference across the air curtain and assure the insulation. The length/width ratio and discharge angle of air curtains, the height/depth ratio of the cabinet enclosure and the dimensions of the inside shelves would influence the stability of air curtains, therefore were extensively discussed in the present work. The maximum Richardson numbers or the optimum parameter selections in each situation were presented for practical design of single-band air curtains used in multi-deck display cabinets.

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Pages: ICR07-D1-1351

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Details

  • Original title: The design considerations of single-band air curtains used in multi-deck refrigerated display cabinets.
  • Record ID : 2008-0236
  • 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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