||Experimental Evaluation of Medium and High Pressure HFC Replacements for R-22.
Hwang, Y. ;
Judge, J. F. ;
Radermacher, R. ;
||Maryland Univ., College Park. Center for Environmental Energy Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.;Electric Power Research Inst., Palo Alto, CA.
Materials replacement ;
Air conditioning equipment ;
Heat pumps ;
Air pollution abatement ;
Environmental chemical substitutes ;
Cooling load ;
Coefficient of performance ;
Energy efficiency ;
Performance testing ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The paper gives results of investigations of three hydrofluorocarbon (HFC) refrigerants that have been proposed to replace R-22, which is frequently used as a refrigerant in air-conditioning and heat pump systems. The three replacements are: a ternary mixture of HFC-31/125/234a in the composition of 23/25/52 wt.% (Ternary A, R-407 C) and two binary mixtures, HFC-32/125 in the composition of 50/50 wt.% (Binary A, R-410 A) and HFC-32/125 in the composition of 45/55 wt.% (Binary B). The performance of these refrigerants was investigated in a residential heat pump originally designed for R-22 at the test conditions specified in ASHRAE Standard 116.
||Presented at International CFC and Halon Alternatives Conference, Washington, DC., October 23-25, 1995. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div. and Electric Power Research Inst., Palo Alto, CA.
||PC A02/MF A01