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Evaluation of Interaction Between Load of Refrigerated Display Cases and Air Conditioners in a Grocery Store Using CFD.

Number: No 286

Author(s) : WEI C., FUJITA M., NARUMI D.

Summary

In this paper, the cooling load of refrigerated display cases and the load of air conditioners in a grocery store were simulated by using computational fluid dynamics (CFD) models to understand the relationship between the loads of refrigerated display cases and air conditioners in summer and winter. In the summer, the results show that a higher preset temperature of the air conditioner led to an increase in the cooling load of the display cases and a decrease in the cooling load of the air conditioners. For this reason, the total electricity consumption was minimized when the preset temperature was set to 25°C, and the temperature was neither the highest nor the lowest explored. In the winter, the total electricity consumption of both display cases and air conditioners increased with increasing preset temperature. Furthermore, by replacing the frozen multi-deck display cases with frozen reach-in cases in the summer, the electricity consumption of the display cases decreased to half, while that of the air conditioners somewhat increased; in the winter, the electricity of the display cases and air conditioners both decreased.

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Pages: 13 p.

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Details

  • Original title: Evaluation of Interaction Between Load of Refrigerated Display Cases and Air Conditioners in a Grocery Store Using CFD.
  • Record ID : 30030082
  • Languages: English
  • Subject: Technology
  • Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Publication date: 2021/08/31

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