| Main Title |
Screening of Non-CFC Alternatives for High-Temperature Heat Pumps. |
| Author |
Kazachki, G. ;
Gage, C. L. ;
|
| CORP Author |
Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div. |
| Publisher |
1997 |
| Year Published |
1997 |
| Report Number |
EPA-68-D4-0005; EPA/600/A-97/103; |
| Stock Number |
PB98-135197 |
| Additional Subjects |
Heat pumps ;
Environmental chemical substitutes ;
Thermodynamic properties ;
Comparative evaluations ;
Material substitution ;
Refrigerants ;
Chlorofluorocarbons ;
Alternatives ;
Screening ;
Air pollution abatement ;
Ozone depletion ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB98-135197 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12p |
| Abstract |
Ten pure fluids (R134, R134a, R245cb, R227ea, R236fa, RE134, R236ea, R245fa, R245ca, and R123) and three blends are analyzed as refrigerants for high-temperature heat pumps at three sets of evaporating/condensing temperatures: 7/80 deg C, 20/100 deg C, and 30/120 deg C. Aside from the commonly used thermodynamic analytical criteria, design criteria based on an R410a a scroll air-conditioning and heat-pump compressor are applied: discharge pressure of 3.4 MPa continuous and 4.1 to 4.5 MPa short-time, pressure ratio of 10, and isentropic discharge temperature at 130-145 deg C. The heat cost reflecting the market conditions is used to make the final selection. |
| Supplementary Notes |
Presented at the IIR Conference on Heat Pump Systems, Energy Efficiency, and Global Warming, Linz, Austria, September 28-October 1, 1997. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div. |
| Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| NTIS Title Notes |
Rept. for Jun-Aug 97. |
| Category Codes |
71M; 68A |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
821200280 |
| Origin |
NTIS |
| Type |
CAT |
