Share

IIR document

Surface tension measurement by a differential capillary rise method for a low-GWP refrigerant CF3I.

Number: 1017

Author(s) : NUMADATE T., JOJIMA Y., LIU Y., KONDOU C.

Summary

CF3I (R13I1, Trifluoroiodomethane) is anticipated to be an additive substance suppressing the flammability of HFOs (hydro-fluoro-olefins). The surface tension of CF3I was measured using a differential capillary rise method with a total propagated uncertainty of approximately ± 0.3 mNm−1. The temperatures for measurement were 228–313 K.
The saturated liquid and vapor densities for CF3I at temperatures below 300 K were predicted using a liquid-vapor equilibrium molecular dynamic simulation. The predicted value of the liquid density was somewhat greater than the extrapolated value by Duan et al. (1999a). In this study, the surface tension data were obtained using the predicted liquid density. The value of surface tension was slightly lower than that by Duan et al. (1999b). Additionally, “Parachor”, an inherent temperature-independent parameter estimated from the molecular structure, was determined using the measured data. The Parachor value of CF3I was 170.

Available documents

Format PDF

Pages: 7

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: Surface tension measurement by a differential capillary rise method for a low-GWP refrigerant CF3I.
  • Record ID : 30028785
  • Languages: English
  • Subject: Technology
  • Source: 2nd IIR Conference on HFO Refrigerants and Low GWP Blends
  • Publication date: 2021/06
  • DOI: http://dx.doi.org/10.18462/iir.HFO.2021.1017

Links


See other articles from the proceedings (52)
See the conference proceedings

Indexing