Record Display for the EPA National Library Catalog


Main Title Two-phase flow of two HFC refrigerant mixtures through short tube offices /
Author Payne, W. Vance. ; O'Neal, D. L.
Other Authors
Author Title of a Work
O'Neal, Dennis L.
Hendriks, Robert V.
CORP Author Texas A and M Univ., College Station. Dept. of Mechanical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory,
Year Published 1995
Report Number EPA/600/R-95/168; EPA-R-822227
Stock Number PB98-142045
Additional Subjects Two phase flow ; Hydrofluorocarbons ; Refrigerants ; Heat pumps ; Orifices ; Mass flow ; Mixtures ; Flow models ; Flow measurement ; Flow rates ; Tubes ; Halohydrocarbons ; Air pollution abatement ; Materials ; Replacement ; Environmental chemical substitutes ; Mathematical models ; Expansion devices ; Pollution prevention
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB98-142045 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 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.