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Experimental determination of the optimum performance of ejector refrigeration system depending on ejector area ratio.

Author(s) : YAPICI R., ERSOY H. K., AKTOPRAKOGLU A., et al.

Type of article: Article, IJR article

Summary

The performance of the ejector refrigeration system using ejectors with cylindrical mixing chamber is studied at operating conditions with choking in the mixing chamber. The condenser pressure is chosen so that the secondary flow choking can occur even in the ejector with the smallest area ratio. In this study, the performance of the constructed system is determined by using six configurations of ejector and R123 as working fluid in the system. The study is performed over a range of the ejector area ratio from 6.5 to 11.5 at the compression ratio 2.47. In the studied range, the experimental coefficient of performance of the system rises from 0.29 to 0.41, as the optimum generator temperature increases from 83 to 103 °C. Similar results were also found in the parametric study when the efficiencies of the nozzle and diffuser are taken as 0.90.

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Pages: 1183-1189

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Details

  • Original title: Experimental determination of the optimum performance of ejector refrigeration system depending on ejector area ratio.
  • Record ID : 2008-4000
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 7
  • Publication date: 2008/11
  • Document available for consultation in the library of the IIR headquarters only.

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