Share

IIR document

Accurate determination of viscosity and surface tension of binary mixtures of R1234YF and R32 under saturated conditions by surface light scattering.

Number: pap. n. 428

Author(s) : BI S., CHUI J., MA L., et al.

Summary

Surface tension and kinematic viscosity of binary mixtures of R1234yf and R32 are measured by surface light scattering (SLS) under saturated conditions between 293K and 343K. The R1234yf (1) + R32 (2) mixtures were prepared with mass fractions w1 of 0.362, 0.482, 0.670 and 0.923. For determination of the liquid kinematic viscosity, the expinties on a confidence level of more than 95 % (k = 2) are estimated to be ± 2 % for reduced temperatures Tr(= T/Tc) < 0.95, and ± 6 % for Tr close to 0.99. For the surface tension, the expanded uncertainties are less than ± 1.5% (k = 2) in the whole temperature range. The result can be applied to the utilization and exploitation of refrigerant.

Available documents

Format PDF

Pages: 6 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: Accurate determination of viscosity and surface tension of binary mixtures of R1234YF and R32 under saturated conditions by surface light scattering.
  • Record ID : 30015848
  • Languages: English
  • Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Publication date: 2015/08/16
  • DOI: http://dx.doi.org/10.18462/iir.icr.2015.0428

Links


See other articles from the proceedings (657)
See the conference proceedings

Indexing