| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB96-143466 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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 |
