D Y Lee.Y Ahn.Y Kim et a1 .Experimental investigation on the drop--in pe rformance ofR407C as a substitute for R22 in SCrew chiller with shell . and .. tube heat exchangers.D.-Y. Lee, Y. Ahn, Y. Kim, Y. Kim, Y.-S. Chang, L. Nam, Experimental investigation on the drop-...
One such mixture is R407C (38% by mole R32, 18% R125 and 44% R134a). Experimental results presented by Gabrielii and Vamling [1] for such a replacement show a severe drop in condenser performance in some applications. This drop can be as large as 70% compared to R22 at low duties...
For instance, a model analogous to a packed column was proposed based on the assumptions of laminar flow in the packing, a negligible effect of packing shape, and the replacement of gravity with centrifugal acceleration [30]. A similar approach was developed using the penetration theory [20]. ...
As a substitute for R22, R410A has more advantages than R407C in view of the characteristics of condensation heat transfer and pressure drop.doi:10.1016/j.ijheatmasstransfer.2012.03.012Hui-Yong ZhangKey Laboratory for Thermal Science and Power Engineering of Ministry of EducationJun-Ming Li...