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RECORD NUMBER: 22 OF 1316

OLS Field Name OLS Field Data
Main Title A transient and steady state study of pure and mixed refrigerants in a residential heat pump /
Author Judge, John. ; Hwang, Y. ; Radermacher, R.
Other Authors
Author Title of a Work
Hwang, Y.
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 U.S. Environmental Protection Agency, Air Pollution Prevention and Control Division,
Year Published 1996
Report Number EPA/600/4-96/129; EPA/600/R-96/129
Stock Number PB97-117741
OCLC Number 48433651
Subjects Heat pump. ; Refrigerants. ; Heat--Transmission--Computer simulation.
Additional Subjects Refrigerants ; Materials replacement ; Air conditioning equipment ; Heat pumps ; Air pollution abatement ; Ozone ; Residential buildings ; Hydrochlorofluorocarbons ; Performance evaluation ; Models ; Comparison ; Computerized simulation ; Pollution prevention
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB97-117741 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 314 pages : illustrations ; 29 cm
Abstract The report gives results of an experimental and theoretical investigation of the transient and steady state performance of a residential air-conditioning/heat pump (AC/HP) operating with different refrigerants. (NOTE: The project was motivated by environmental concerns related to the replacement of stratospheric ozone depleting refrigerants as required by international agreement and U.S. law. Hydrochlorofluorocarbon (HCFC)-22, and a medium pressure refrigerant, is scheduled to be phased out of production and must be replaced. Significant empirical data are available on HCFC-22, but relatively little data exist on the transient performance of any of the zeotropic mixtures being considerd as HCFC-22 replacements). The experimental work, conducted by testing an AC/HP in environmental chambers, documented refrigerant performance for steady state, cyclic, and seasonal performance, evaluated various equipment modifications, and measured changes in the concentrations of refrigerant mixtures as a function of time. A computer model was developed, capable of modeling the transient and steady state performance of an AC/HP. This model is the first capable of representing the significant transient and steady state physics of an AC/HP operating with pure and mixed refrigerants while utilizing minimal empirical data.
Notes EPA/600/R-96/129. Includes bibliographical references. Microfiche.
Place Published Research Triangle Park, NC : U.S. Environmental Protection Agency, Air Pollution Prevention and Control Division,
Supplementary Notes Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Corporate Au Added Ent United States. Environmental Protection Agency. ; University of Maryland at College Park. Dept. of Mechanical Engineering.
PUB Date Free Form 1996.
NTIS Prices PC A15/MF A03
BIB Level m
Cataloging Source OCLC/T
OCLC Time Stamp 20011115181607
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 01270nam 2200313Ka 45020