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Reducing energy consumption of a dehumidifying system for a dry room: basic investigation and experiment of a pilot plant using a CO2 heat pump cycle.

Author(s) : FUJII T., KASHIRAJIMA Y., SUGIURA T., et al.

Summary

The purpose of this study was to reduce the energy consumption of an industrial air-conditioning system. The energy conservation of an air-conditioning system that supplies low dew point air was investigated and validated experimentally. The consumption of energy was reduced by introducing a heat pump for both heating and cooling of the air at the same time. The authors studied working fluid that is suitable for the heat pump and found that R-744 (CO2) has higher heating performance than R-410A and R-22. A simulation of the system with a CO2 heat pump was found to reduce energy consumption by 8.2% at peak conditions and 13.2% at intermediate conditions. The authors also developed a pilot plant that combines dehumidifier and heat pump cycle, and the experimental results indicated a 6.5% energy reduction at peak conditions and a 10.2% reduction at intermediate conditions.

Details

  • Original title: Reducing energy consumption of a dehumidifying system for a dry room: basic investigation and experiment of a pilot plant using a CO2 heat pump cycle.
  • Record ID : 2008-2706
  • Languages: English
  • Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
  • Publication date: 2007/06/10

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