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Influence of the refrigerant mass fraction in the performance of an ammonia absorption refrigerator.

Author(s) : TAKESHITA K., AMANO Y., HASHIZUME T., et al.

Type of article: Article

Summary

The performance of the rectifying column affects the COP of an ammonia absorption refrigerator. The ammonia mass fraction of the refrigerant is one of the key parameters indicating the performance of the rectifying column. The authors propose a method to estimate the refrigerant mass fraction with mass and energy balance equations around the separator at the inlet of the evaporator, and describe the results of experiments which measured the refrigerant mass fraction by sampling from the refrigerant receiver. Throughout these investigations, the refrigerant mass fraction turned out to be lower than the expected value calculated from the condition of dry-saturated vapour at the top of the rectifying column. The refrigerant mass fraction can be estimated within an accuracy of 0.3% by the estimation method based on mass and energy balance equations.

Details

  • Original title: Influence of the refrigerant mass fraction in the performance of an ammonia absorption refrigerator.
  • Record ID : 2005-1839
  • Languages: English
  • Source: JSME int. J., B - vol. 47 - n. 2
  • Publication date: 2004

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