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Alternatives to HCFC-22 for air conditioners.

Author(s) : DEVOTTA S., WAGHMARE A. V., SAWANT N. N., et al.

Type of article: Article

Summary

Some selected fluids have been assessed for their suitability as alternatives to HCFC-22 for air conditioners. Only those refrigerants with zero ozone depletion potential are considered. NIST CYCLE_D has been used for the comparative thermodynamic analysis. Among the refrigerants studied (HFC-134a, HC-290, R407C, R410A and three blends of HFC-32, HFC-134a and HFC-125), HFC-134a offers the highest COP, but its capacity is the lowest and requires much larger compressors. The characteristics of HC-290 are very close to those of HCFC-22, and compressors require very little modification. Therefore, HC-290 is a potential candidate provided the risk concerns are mitigated as had been accomplished for refrigerators. For retrofitting, R407C is probably the best candidate.

Details

  • Original title: Alternatives to HCFC-22 for air conditioners.
  • Record ID : 2001-2911
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 21 - n. 6
  • Publication date: 2001/04

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