| 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 |
|
| 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 |
| 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
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB97-117741 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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 |
NTIS |
| Type |
MERGE |
| OCLC Rec Leader |
01270nam 2200313Ka 45020 |
