Share

IIR document

Experimental study of R600a mass flow rate in non-equilibrium subcooled two-phase state.

Number: 0028

Author(s) : RASTI M., HASAN M. R., JEONG J. H.

Summary

A few researchers reported the presence of vapor bubbles of R600a at the capillary tube inlet of refrigerators under subcooled conditions. However, an appropriate empirical correlation for prediction of the refrigerant mass flow rate under a non-equilibrium two-phase state has not yet been studied. The aim of this study was to investigate the effects of ambient temperature and R600a charge amount on the refrigerant state and examination the ability of empirical correlations for prediction of the mass flow rate. For visualization of the refrigerant flow, a transparent tube was installed at the capillary tube inlet of a parallel two-circuit cycle refrigerator-freezer. The visualization results demonstrated the presence of a non-equilibrium state under subcooled conditions for most experiments. Empirical correlations of Rasti et al. and Wolf and Pate. predicted the mass flow rate with a large deviation under a non-equilibrium state and acceptable deviation under a fully liquid state.

Available documents

Format PDF

Pages: 9 p.

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 study of R600a mass flow rate in non-equilibrium subcooled two-phase state.
  • Record ID : 30029665
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0028
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (169)
See the conference proceedings

Indexing