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Heat transfer model of latent heat thermal storage in CO2 refrigerant heat pump in vending machine.

Number: O-IT-1068

Author(s) : FUJII H., SATO H., KASUYA J., et al.

Summary

Optimum utilization of heat by thermal storage is one of the methods to improve efficiency and to save energy for various heat pump systems. In this research, in order to save power of heating or cooling of the beverage vending machines with CO2 heat pump, we clarified some design guidelines of a latent heat thermal storage for its installation in a heating cabinet. This thermal storage has two heat transfer surfaces; it stores CO2 heat during the heat pump running, and then radiates it into the heating cabinet during the heat pump stopping. For this thermal storage, it is found that promoting thermal conduction in the thermal storage side is effective, and that promotion of heat transfer into the air side is necessary.

Details

  • Original title: Heat transfer model of latent heat thermal storage in CO2 refrigerant heat pump in vending machine.
  • Record ID : 30023244
  • Languages: English
  • Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.
  • Publication date: 2017/08/07

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