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Low GWP refrigerants as alternatives to HCFC-22 in room air conditioners
, S. Devotta, A. Padalkar
Published in Taylor & Francis
Volume: 22.0
Issue: 8.0
Pages: 1128.0 - 1135.0
This article presents simulated and experimental performance evaluations of a few selected low global warming potential refrigerants as alternatives to HCFC-22 for room air conditioners. The alternatives considered are HC-290, HC-1270, HFC-161, HFC-32, and HFC-1234yf. The performance of each alternative has been evaluated by optimizing heat exchangers, compressors, and capillary for the maximum EERAC. Experiments were also conducted as per IS 1391 Part 1 for a few alternatives, including HC-290, HFC-161, and HFC-32. HC-290 and HFC-32 gave an EERAC of 3.7. The experiments indicate that HC-290 offers the best performance, and room air conditioners that have a capacity of less than 5.2 kW can meet the exiting safety standards. The discharge temperatures of HFC-32 are relatively high and need special attention in the compressor design. HFC-161 is also a potential ultra-low global warming potential alternative to HCFC-22, once its safety classification is established.
About the journal
JournalScience and Technology for the Built Environment
PublisherTaylor & Francis
Open AccessNo