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Performance analysis of new alternatives to HCFC‐22 inside air/refrigerant‐enhanced surface tubing
Author(s) -
Sami Samuel M.,
Desjardins Daniel E.
Publication year - 2000
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/1099-114x(200007)24:9<759::aid-er622>3.0.co;2-k
Subject(s) - ashrae 90.1 , refrigerant , materials science , environmental science , discharge pressure , thermodynamics , nuclear engineering , mechanical engineering , engineering , meteorology , heat exchanger , physics , gas compressor
In this paper, the test results of a performance analysis of new alternatives; R‐410A, R‐507, R‐407C, R‐408A and R‐404A proposed as substitutes to HCFC‐22 are presented. The test results were obtained using an air‐source heat pump with enhanced surface tubing. Performance tests were conducted according to the ARI/ASHRAE Standards. The performance data demonstrated that as an interim replacement, the R‐404A blend has a superior performance particularly at low temperatures among the proposed blends. Furthermore, the alternatives to R‐22 are characterised by high discharge pressure compared to that of R‐22. In particular, R‐410A has the highest discharge pressure among the blend studied. R‐407C has similar discharge temperature to R‐22 at temperatures lower than −8°C. Copyright © 2000 John Wiley & Sons, Ltd.