||Two-phase flow of two HFC refrigerant mixtures through short tube offices /
Payne, W. Vance. ;
O'Neal, D. L.
||Texas A and M Univ., College Station. Dept. of Mechanical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
|| U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory,
Two phase flow ;
Heat pumps ;
Mass flow ;
Flow models ;
Flow measurement ;
Flow rates ;
Air pollution abatement ;
Environmental chemical substitutes ;
Mathematical models ;
Expansion devices ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||132 pages : illustrations ; 28 cm
The report gives results of an experimental investigation to develop an acceptable flow model for short tube orifice expansion devices used in heat pumps. The refrigerants investigated were two hydrofluorocarbon (HFC) mixtures considered hydrochlorofluorocarbon (HCFC)-22 replacements: HFC-32/HFC-125/HFC-134a (23/25/52% on a mass percentage basis) and HFC-32/HFC-125 (50/50%).
"CR822227, contract number." "EPA/600/R-95/168." "Robert V. Hendriks, project officer." "May 1998." Microfiche.