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Performance assessment of air conditioners with HC-290.

Evaluación de las prestaciones de acondicionadores de aire con HC-290.

Author(s) : PADALKAR A. S., MALI K. V., RAJADHYAKSHA D. D., et al.

Type of article: Article

Summary

This article is the Spanish translation of a paper presented at the IIR-Gustav Lorentzen conference on natural working fluids, in Sydney, Australia (see the Bulletin of the IIR, reference 2010-1978). HCFC-22, widely used in room air conditioners, has to be phased out by 2030 under the Montreal Protocol. HC-290 is being considered as alternative to HCFC-22. A 5.13 kW capacity split air conditioner designed for HCFC-22 was considered. After establishing the baseline performance data with HCFC-22, the unit was retrofitted with HC-290. Under the drop-in test, the cooling capacity with HC-290 was lower by 6% and COP higher by 14%. The optimized charge of HC-290 was about 50% of HCFC-22 by weight. A 30% larger condenser gave 1.6% lower capacity and 10% higher COP. With a 10% higher capacity compressor, the cooling capacity was improved by 2.8% and COP was lower by 1.1%. In the case of 10% higher capacity compressor and 14.7% longer capillary, the cooling capacity was 5.2% higher with 2.9% lower COP. ORNL Heat Pump Design Model was used to predict the performance of the systems with HC-290 and to optimize the system.

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Format PDF

Pages: pp. 38-44 (6 p.)

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Details

  • Original title: Evaluación de las prestaciones de acondicionadores de aire con HC-290.
  • Record ID : 2011-0271
  • Languages: Spanish
  • Source: IIF-IIR/Frío Calor Aire acond. - vol. 39 - n. 434
  • Publication date: 2011/03

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