• Home page
  • Publications

  • Experimental analysis of HFC-134a expansion thr...

IIR document

Experimental analysis of HFC-134a expansion through small-bore adiabatic capillary tubes.

Author(s) : DE LARA J. F. P., MELO C., BOENG J., HERMES C. J. L.

Type of article: IJR article

Summary

This paper comes out with an experimental investigation of the expansion of refrigerant HFC-134a through adiabatic capillary tubes with internal diameters ranging from 0.23 mm to 0.53 mm aiming at the so-called mesocooling applications. To this end, an experimental apparatus was designed and constructed to emulate the operating conditions of mesoscale refrigerating devices, with condensing pressures ranging from 9 to 19 bar, and inlet refrigerant subcooling ranging from 5 to 10 K. The tube length was varied from 1 to 2 m. The tests were carried out following a factorial design. The experimental data were used to assess the mass flow rate prediction capabilities of an explicit, algebraic model for adiabatic capillary tubes devised in a prior work. The results revealed that the model is not suitable for small-bore capillary tubes. Correction factors were proposed, so that the model predictions for more than 90% of the experimental dataset fell within ±10% error bounds.

Available documents

Format PDF

Pages: 37-43

Available

  • Public price

    15 €

  • Member price*

    8 €

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

Details

  • Original title: Experimental analysis of HFC-134a expansion through small-bore adiabatic capillary tubes.
  • Record ID : 30027381
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 112
  • Publication date: 2020/04
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.12.015

Links


See other articles in this issue (30)
See the source