Add time:09/05/2019 Source:sciencedirect.com
This work evaluates R-454C, R-459B, R-457A and R-455A as R-404A low-GWP substitutes in a stand-alone commercial refrigeration system for fresh product under ISO 23953-2. System is tested with and without receiver. Charge was optimized based on energy consumption tests in climatic chamber. A significant increment of the evaporating temperature of the new mixtures has been observed, which mitigate the negative effects associated to the large glide. Operation is compatible with R-404A for this system, offering energy consumption reductions for optimized charges without receiver of: 2.07% with R-454C, 10.76% with R-459B, 10.48% with R-457A and 2.95% R-455A. Energy consumption reductions with receiver are of 2.45% with R-454C, 11.55% with R-459B, 10.69% with R-457A and 2.9% with R-455A. In most of the cases the optimum refrigerant charge was below R-404A one. It is concluded that R-404A low-GWP substitutes can reduce refrigerant charge and improve energy performance in relation to R-404A.
We also recommend Trading Suppliers and Manufacturers of (R)-(+)-DIMETHYL-2 2'-DIHYDROXY-1 1'-BI& (cas 18531-91-4). Pls Click Website Link as below: cas 18531-91-4 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View