Improving heating performance of a MPS heat pump system with consideration of compressor heating effects in a heat exchanger design.
Author(s) : PARK J. T., OH S. Y., SONG C. H., et al.
Summary
An innovative way of improving heating performance was developed for a 3.5-RT MPS (multi power system) heat pump system. In the heat pump system, there were three heat exchangers, one in each front, rear and bottom. The front and rear heat exchangers were supplied with the air from open space when the bottom heat exchanger was supplied with the air heated by the compressor. The result came out as the great temperature difference between the incoming air and the refrigerant in the bottom heat exchanger. The difference was greater than those in the other two heat exchangers. The inlet air temperatures were numerically estimated with a commercial code, and the compressor was modelled as a constant temperature heat source. The temperature distributions were obtained over the three heat exchangers. According to the temperature profile, the refrigerant distribution to the three heat exchangers was redesigned, which means more refrigerant was distributed to the portion of the heat exchanger with greater temperature difference between the air and refrigerant. It directs to the improvement of heating capacities by 10% and in addition of 5% for low temperature heating steady state, and standard rating conditions, ARI 210/240, respectively. The heating season performance factor was improved by 5.2%, without any increase in cost or consuming more energy.
Available documents
Format PDF
Available
Public price
20 €
Member price*
15 €
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Improving heating performance of a MPS heat pump system with consideration of compressor heating effects in a heat exchanger design.
- Record ID : 2008-2278
- Languages: English
- Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Publication date: 2006/07/17
Links
See other articles from the proceedings (157)
See the conference proceedings
Indexing
- Themes: Heat pumps techniques
- Keywords: Enhancement; Air-air; Heat pump; Performance
-
Research on improving the performance of an air...
- Author(s) : ZHEN B., LIU Z. H., WANG Q., et al.
- Date : 2007/02
- Languages : Chinese
- Source: Journal of Refrigeration - vol. 28 - n. 1
- Formats : PDF
View record
-
High increase in efficiency of the gas engine d...
- Author(s) : NAKANO S.
- Date : 2008/05
- Languages : Japanese
- Source: Refrigeration - vol. 83 - n. 967
View record
-
Possibilities of improving the thermodynamic wo...
- Author(s) : NOWOTNY S.
- Date : 1979/05
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 2 - n.3
- Formats : PDF
View record
-
Performance enhancement of some alternatives to...
- Author(s) : SAMI S. M., DESJARDINS D. E.
- Date : 2000/03/25
- Languages : English
- Source: Int. J. Energy Res. - vol. 24 - n. 4
View record
-
Een nieuwe generatie warmtepompen in opkomst.
- Author(s) : MEUWESE N., LEERDAM M. van
- Date : 2008/06
- Languages : Dutch
- Source: Koude & Luchtbehandeling - vol. 101 - n. 6
View record