Share

IIR document

Experimental investigations of two-phase ejector operating with isobutane.

Number: pap. n. 644

Author(s) : SMIERCIEW K., GAGAN J., BUTRYMOWICZ D., et al.

Summary

Application of a two-phase ejector in a vapour compression refrigeration system is a promising way to increase the system efficiency. Most of the investigations deal with the performance of the whole compression-refrigeration system. In contrary the paper deals with two-phase ejector only. Low GWP natural refrigerant R600a was used in the experiment. The velocity coefficients have been determined. Velocity coefficients f for nozzles in range 0.4 < f <1.0 and f < 0.4 for suction and mixing chambers and diffuser were obtained. Basing on the experimental results correlations for velocity coefficient for components of the ejector have been proposed. Two physical parameters: quality of fluid, and the volumetric entrainment ratio, were selected as parameters describing relation of the velocity coefficient. The numerical results based on the proposed correlations fits with experimental data within 30%.

Available documents

Format PDF

Pages: 8

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental investigations of two-phase ejector operating with isobutane.
  • Record ID : 30026456
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0644

Links


See other articles from the proceedings (632)
See the conference proceedings

Indexing