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Ejector in R410A vapor compression systems with experimental quantification of two major mechanisms of performance improvement: work recovery and liquid feeding.

Author(s) : POTTKER G., HRNJAK P.

Type of article: Article, IJR article

Summary

This paper presents experimental data and analysis comparing the performance of an R410A ejector vapor compression system to those of a liquid-fed evaporator system and a conventional expansion valve system. The objective was to quantify separately two major improvements of the ejector system: work recovery and liquid-fed evaporator. The ejector system was first compared to a system with liquid-fed evaporator at matching cooling capacities and revealed improvements from 1.9% to 8.4% solely due to the work recovery of the ejector. When compared to a conventional expansion valve system at the same cooling capacity, the ejector setup improved COP from 8.2% to 14.8% due to simultaneous benefits of liquid-fed evaporator and work recovery. Overall ejector efficiencies from 12.2% to 19.2% were achieved.

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Pages: 184-192

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Details

  • Original title: Ejector in R410A vapor compression systems with experimental quantification of two major mechanisms of performance improvement: work recovery and liquid feeding.
  • Record ID : 30013375
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 50
  • Publication date: 2015/02

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