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Development of zero ODP, low TEWI, binary, ternary and quaternary mixtures to replace HCFC-22 in window air conditioner.

Author(s) : ASHOK BABU T. P., SAMAJE V. V., RAJEEV R.

Summary

Due to ecological problems like ozone depletion and global warming, certain refrigerants like R-22 have to be replaced. Alternative refrigerants like R-407C, R-410A and R-417 are having high TEWI values compared to R-22. Pure HFCs are having some disadvantages like flammability, miscibility, etc. In this paper, an attempt is made to find new alternatives for R-22 by considering flammability, azeotropic behaviour, miscibility with lubricant oil, thermodynamic properties, and performance parameters of window air conditioners. By comparing the performance parameters like discharge temperature, COP, TEWI, displacement volume, etc. it is recommended to use the binary mixture R-32/R-134a with POE oil & ASHRAE flammability category 1 or ternary mixture R-32/R-134a/R-290 with mineral oil & ASHRAE flammability category 2 as drop in substitute for R-22 in window air-conditioner with modification only in capillary.

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Details

  • Original title: Development of zero ODP, low TEWI, binary, ternary and quaternary mixtures to replace HCFC-22 in window air conditioner.
  • Record ID : 2007-1445
  • Languages: English
  • Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2006/07/17

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