Share
IIR document
Analysis of an ejector expansion device in a transcritical CO2 air-conditioning system.
Author(s) : LI D. Q., GROLL E. A.
Summary
A two-phase flow ejector model was developed and validated using experimental results. An ejector expansion transcritical CO2 air-conditioning system simulation model was developed by incorporating the two-phase flow ejector model into an existing transcritical CO2 air-conditioning system simulation model. Parametric studies were performed to investigate the effects of ejector design parameters on the system performance of an US military environmental control unit for varying operating conditions. It was found that when both systems have the same gas cooler, evaporator and compressor, the ejector expansion system could have 11% higher COP and a 9.5% higher cooling capacity over the basic transcritical system.
Available documents
Format PDF
Pages: 2006-2
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: Analysis of an ejector expansion device in a transcritical CO2 air-conditioning system.
- Record ID : 2007-1548
- Languages: English
- Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
- Publication date: 2006/05/29
Links
See other articles from the proceedings (111)
See the conference proceedings
Indexing
-
Themes:
Other air-conditioning equipment;
Expansion systems;
Refrigerant circulation: piping, control, automation, safety;
CO2;
Ejector systems, air cycle, Stirling cycle, other cycles) - Keywords: Refrigerating system; Ejector system; Military application; Simulation; Modelling; Expansion; Transcritical cycle; COP; Air conditioning; CO2
-
Investigation of a two-phase flow ejector in a ...
- Author(s) : LIU F., GROLL E.
- Date : 2008/09/07
- Languages : English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
View record
-
Transcritical CO2 refrigeration cycle with ejec...
- Author(s) : LI D., GROLL E. A.
- Date : 2005/08
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 5
- Formats : PDF
View record
-
Experimental validation and design study of a t...
- Author(s) : ELBEL S., HRNJAK P.
- Date : 2006/05/29
- Languages : English
- Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
- Formats : PDF
View record
-
Particular characteristics of a transcritical C...
- Author(s) : DENG J. Q., JIANG P. X., LU T., et al.
- Date : 2007/02
- Languages : English
- Source: Applied Thermal Engineering - vol. 27 - n. 2-3
View record
-
Scroll expander for carbon dioxide cycle.
- Author(s) : WESTPHALEN D., DIECKMANN J.
- Date : 2006/07/17
- Languages : English
- Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
View record