Summary
The performance of the heat pump can be improved further when running under low temperature conditions when an ejector is used in a heat pump system coupled with economized vapor injection (EVI) scroll compressor. In this paper, the design method of the heat pump system with ejector (EVIe) is presented, and the process for designing the heat pump with ejector has been summarized. The optimal location of the vapor injection inlets is at the place where the vapor can inject into the working chambers when they just be closed. The reasonable value for the entrainment ratio u of the ejector is between 0.1 and 0.2. One prototype heat pump was designed under the condition of the evaporation temperature of -20°C, and an experimental setup was established to test the prototype. The measured results demonstrated that the heating EER of the heat pump system with ejector could reach about 4% higher than that of the system without ejector when the heating capacity remained nearly constant.
Available documents
Format PDF
Pages: 1587-1595
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Research on air-source heat pump coupled with economized vapor injection scroll compressor and ejector.
- Record ID : 30001657
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 7
- Publication date: 2011/11
Links
See other articles in this issue (18)
See the source
-
Experimental study on a quasi two-stage compres...
- Author(s) : PANG Z., MA G., YU L.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
View record
-
Characterization of a vapor injection scroll co...
- Author(s) : NAVARRO E., REDÓN A., GONZÁLVEZ-MACIÁ J., et al.
- Date : 2013/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 7
- Formats : PDF
View record
-
Method for designing Stirling refrigerating mac...
- Author(s) : KIRILLOV N. G.
- Date : 2003
- Languages : Russian
- Source: Kholodilnaya Tekhnika - n. 12
View record
-
Scroll Verdichter mit Dampfeinspritzung für Käl...
- Author(s) : KÄMMER N., TOMSKI T.
- Date : 2005/11
- Languages : German
- Source: Kälte + Klimatechnik (Die) - vol. 58 - n. 11
View record
-
Lab testing of a retrofitted CO2 boo...
- Author(s) : DICKES R., JOSE C. de, VEGA J., WINANDY E.
- Date : 2022/07/15
- Languages : English
- Source: 2022 Purdue Conferences. 26th International Compressor Engineering Conference at Purdue.
- Formats : PDF
View record