TY - JOUR
T1 - Cycle performance of alternative refrigerants for domestic air-conditioning system based on a small finned tube heat exchanger
AU - Cheng, Song
AU - Wang, Shuangfeng
AU - Liu, Zhongmin
N1 - Funding Information:
The authors gratefully acknowledge the financial support for this project from the National Natural Science Foundation of China (Grant No. 51276068 ) and Science and Technology Program of Guangzhou, China (Grant No. 2012J5100003 ) and the International Cooperation and Exchange Program from the Ministry of Science and Technology of China (Grant No. 2013DFG60080 ).
PY - 2014/3
Y1 - 2014/3
N2 - In order to find alternative refrigerants which exhibit both favorable cycle performance and environmental friendliness, R32 and R290 were utilized to contrast to R22 and R410A as substitutes in the present study. The experiments were conducted with a 5 mm finned tube heat exchanger based on the enthalpy method in a small split household air conditioner. The results showed that in nominal cooling conditions, the COPR of R32 and R290 were 26.8% and 20.4% higher than R22, 7.3% and 2.1% higher than R410A. And in nominal heating conditions, the COPHR of R32 and R290 were both 11.0% higher than R22, 5.3% higher than R410A. The systems with R290 and R32 have similar capacities to that with R22 and R410A in heating mode, but a relatively huge difference of capacities in cooling mode. In consideration of charge amount, R290 could be considered as the most superior alternative refrigerant in air conditioners with the small finned tube heat exchanger.
AB - In order to find alternative refrigerants which exhibit both favorable cycle performance and environmental friendliness, R32 and R290 were utilized to contrast to R22 and R410A as substitutes in the present study. The experiments were conducted with a 5 mm finned tube heat exchanger based on the enthalpy method in a small split household air conditioner. The results showed that in nominal cooling conditions, the COPR of R32 and R290 were 26.8% and 20.4% higher than R22, 7.3% and 2.1% higher than R410A. And in nominal heating conditions, the COPHR of R32 and R290 were both 11.0% higher than R22, 5.3% higher than R410A. The systems with R290 and R32 have similar capacities to that with R22 and R410A in heating mode, but a relatively huge difference of capacities in cooling mode. In consideration of charge amount, R290 could be considered as the most superior alternative refrigerant in air conditioners with the small finned tube heat exchanger.
KW - 5 mm finned tube heat exchanger
KW - Alternative refrigerants
KW - Capacity
KW - COP
KW - R32 and R290
UR - http://www.scopus.com/inward/record.url?scp=84891778264&partnerID=8YFLogxK
U2 - 10.1016/j.applthermaleng.2013.12.022
DO - 10.1016/j.applthermaleng.2013.12.022
M3 - Journal article
AN - SCOPUS:84891778264
SN - 1359-4311
VL - 64
SP - 83
EP - 92
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
IS - 1-2
ER -