Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7175514 | International Journal of Refrigeration | 2015 | 41 Pages |
Abstract
In the present paper, the refrigerant mixture R32/R290 (68%/32% by weight) is investigated as the drop-in replacement for R410A in household air conditioners. The GWP of it is only 22% of that of R410A. Theoretical and experimental investigations are conducted on the performance of the air conditioners working with both R32/R290 and R410A. Experimental results show that the refrigerant charge amount of R32/R290 is reduced by 30.0%-35.0%; the cooling and heating capacities are increased by 14.0%-23.7%. For further reducing charge amount and flammability, the micro-channel heat exchanger (condenser) is employed to replace the finned tube one. Compared with the R32/R290 system using finned tube heat exchanger, the R32/R290 charge amount and the power consumption are reduced by 34.1% and 0.4%, respectively; the cooling capacity and the COP are increased by 6.4% and 6.8%, respectively.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Qiqi Tian, Dehua Cai, Liang Ren, Weier Tang, Yuanfei Xie, Guogeng He, Feng Liu,