Summary
Ever since the renaissance of transcritical R744 systems in the late 1980s, ejectors have been considered to improve energy efficiencies. However, the invention of the ejector dates back far longer. This review paper gives an overview of historical and recent developments regarding air-conditioning and refrigeration systems that use ejectors. More than 150 ejector papers available in the open literature have been studied and important findings and trends were summarized. Included are the early beginnings starting with the invention of the ejector and major fields of use are outlined. Research on refrigeration cycles that utilize low-grade energy to produce a refrigeration effect is summarized. Another major field, expansion work recovery by two-phase ejector, is described next. This application appears very promising when used in transcritical R744 cycles. Less commonly encountered setups, such as systems in which ejectors are used to raise the compressor discharge pressure instead of the suction pressure are also introduced.
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Details
- Original title: Ejector refrigeration: an overview of historical and present developments with an emphasis on air-conditioning applications.
- Record ID : 2010-1879
- Languages: English
- Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Publication date: 2008/07/14
Links
- See translations: Refrigeración con eyector en aplicaciones de aire acondicionado: visión general de la evolución de desarrollos históricos y actuales.
See other articles from the proceedings (125)
See the conference proceedings
Indexing
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Refrigeración con eyector en aplicaciones de ai...
- Author(s) : ELBEL S., HRNJAK P.
- Date : 2009/07
- Languages : Spanish
- Source: Frío Calor Aire acondicionado - vol. 37 - n. 416
- Formats : PDF
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Historical and present developments of ejector ...
- Author(s) : ELBEL S.
- Date : 2011/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 7
- Formats : PDF
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Experimental investigation of different ejector...
- Author(s) : HAFNER A., LADAM Y., ANDRESEN T., et al.
- Date : 2010/04/12
- Languages : English
- Source: 9th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2010). Proceedings. Sydney, Australia, April 12-14, 2010.
- Formats : PDF
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Investigación en laboratorio de diferentes geom...
- Author(s) : HAFNER A., LADAM Y., ANDRESEN T., et al.
- Date : 2011/09
- Languages : Spanish
- Source: Frío Calor Aire acondicionado - vol. 39 - n. 439
- Formats : PDF
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Analysis of a two-phase flow ejector for the tr...
- Author(s) : LIU F., GROLL E. A.
- Date : 2008/07/14
- Languages : English
- Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
View record