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Performance analysis of a dehumidifier using HFC-134a.

Author(s) : CARRINGTON C. G., BANNISTER P., LIU Q.

Type of article: Article, IJR article

Summary

The paper analyses the operating characteristics for a medium temperature dehumidifier employing a passive evaporator economizer and staged liquid subcooling. The refrigerant was HFC-134a and the compressor was a compliant scroll with a swept volume of 14.8 m3/h. The measurements were made in a psychrometric calorimeter and the data consistency is assessed by applying energy and moisture balance criteria. Local energy balance is used to determine the incidental heat gain of the evaporator. It is suggested the compressor energy balance was affected by refrigerant dissolved in the lubricant at the highest evaporating pressures tested (900 kilopascals). The maximum measured specific moisture extraction rate of the dehumidifier was 5.11 kg/kWh at 50 deg C dry-bulb temperature and 90% relative humidity. The results illustrate the potential for scroll compressors, and the use of HFC-134a, in this application.

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Pages: 477-485

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Details

  • Original title: Performance analysis of a dehumidifier using HFC-134a.
  • Record ID : 1997-2358
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 18 - n. 7
  • Publication date: 1995/09

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