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Ejector refrigeration: an overview of historical and present developments with an emphasis on air-conditioning applications.

Froid à éjecteur : un passage en revue des développements historiques et actuels avec l'accent mis sur les applications de conditionnement d'air.

Auteurs : ELBEL S., HRNJAK P.

Résumé

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.

Documents disponibles

Format PDF

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Ejector refrigeration: an overview of historical and present developments with an emphasis on air-conditioning applications.
  • Identifiant de la fiche : 2010-1879
  • Langues : Anglais
  • Source : 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Date d'édition : 14/07/2008

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