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Theoretical and experimental study on a frost-free refrigerated display cabinet.

Number: 292572

Author(s) : ZHANG L., NAKAJIMA K., TASHIRO Y., YAMADA H., SAIKAWA M., HASEGAWA H.

Summary

We propose a frost-free refrigerated display cabinet (RDC) that mainly comprises a compressor, a low-temperature evaporator and two desiccant-coated heat exchangers (DCHEs). One of the DCHEs works as a mid-temperature evaporator, in which the return air is dehumidified due to the desiccant adsorption process. The dry air leaving the DCHE is cooled by the low-temperature evaporator and supplied to the display cabinet. Meanwhile, another DCHE works as a condenser, in which the desiccant is regenerated using condensation heat that would otherwise be ejected into the ambient air in conventional RDCs. Calculation was conducted for a forced draft, open-type frost-free RDC, with cabin volume of 67L and cabin temperature of 2~8°C and the results show daily electricity consumption of 10.4 MJ, 70% of which is due to the compressor.

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Details

  • Original title: Theoretical and experimental study on a frost-free refrigerated display cabinet.
  • Record ID : 30027577
  • Languages: English
  • Subject: Technology
  • Source: 6th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Nantes, France, August 26-28 2020
  • Publication date: 2020/08/26
  • DOI: http://dx.doi.org/10.18462/iir.iccc.2020.292572
  • Document available for consultation in the library of the IIR headquarters only.

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