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OLS Field Name OLS Field Data
Main Title Evaluation of R-22 Alternatives for Heat Pumps.
Author Hwang, Y. ; Judge, J. F. ; Radermacher, R. ;
CORP Author Maryland Univ., College Park. Center for Environmental Energy Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher 1996
Year Published 1996
Report Number EPA-R-819710-01-0; EPA/600/A-96/007;
Stock Number PB96-143466
Additional Subjects Heat pumps ; Environmental chemical substitutes ; Halohydrocarbons ; Material substitution ; Retrofitting ; Alternatives ; Heat exchangers ; Heating systems ; Heat recovery ; Energy efficiency ; Refrigerants ; Chlorofluorocarbons ; Air pollution abatement ; Performance evaluation ; Reprints ; R-22 ; R-407C
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P100VILQ.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB96-143466 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 05/18/1996
Collation 10p
Abstract The paper reports results of a study investigating three different possibilities for replacing refrigerant R-22 with R-407C in a heat pump. The first and simplest scenario was a retrofit without any hardware modifications. The second possibility was a modification that required altering the refrigerant path to attain a near-counterflow configuration in the indoor coil for the heating mode. The third and most complex possibility was soft optimization, consisting of maximizing the coefficients for performance (COPs) in the heating and cooling modes by optimizing the refrigerant charge and expansion devices.
Supplementary Notes Presented at the International Mechanical Engineering Congress and Exposition, San Francisco, CA., November 12-17, 1995. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
NTIS Title Notes Rept. for Sep 93-Dec 94.
Title Annotations Reprint: Evaluation of R-22 Alternatives for Heat Pumps.
Category Codes 68A; 71M; 97J; 89B
NTIS Prices PC A02/MF A01
Primary Description 600/13
Document Type NT
Cataloging Source NTIS/MT
Control Number 612400820
Origin NTIS
Type CAT