Alternatives to HCFC-22 for air conditioners

被引:83
|
作者
Devotta, S [1 ]
Waghmare, AV [1 ]
Sawant, NN [1 ]
Domkundwar, BM [1 ]
机构
[1] Natl Chem Lab, Council Sci & Ind Res, Pune 411008, Maharashtra, India
基金
爱尔兰科学基金会;
关键词
HCFCs; HFCs; HCs; CFCs; air conditioners; Montreal protocol;
D O I
10.1016/S1359-4311(00)00079-X
中图分类号
O414.1 [热力学];
学科分类号
摘要
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, R-407C, R-410A, 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, R-407C is probably the best candidate. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:703 / 715
页数:13
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