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Experimental investigation of motive nozzle in two-phase ejector.

Number: pap. ID: 696

Author(s) : KARWACKI J., DUDAR A., BUTRYMOWICZ D., et al.

Summary

The two-phase ejectors may be applied in refrigeration and heat pump systems to reduce the throttling losses in the compression systems. However, this requires a special design of the ejector. The possible partial evaporation of a motive liquid jet emanating from a motive nozzle is the very specific feature of the ejector operating with refrigerants. The appropriate operation of the ejector requires a special design which is the reason for the dedicated experimental investigations. The paper deals with the investigation of the critical flow in motive two-phase nozzle. A special testing stand for investigation has been described in the paper. The results of systematic investigation carried out with two-phase motive nozzles are presented. The results were compared with the classical Henry-Fauske model for critical flux and quite good agreement was observed for analysed nozzle.

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Pages: 8 p.

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Details

  • Original title: Experimental investigation of motive nozzle in two-phase ejector.
  • Record ID : 30002080
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

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