Share

IIR document

Thermal conductivity of refrigerants in the liquid state: a comparison of some estimation methods.

Number: pap. ID: 471

Author(s) : LATINI G., SOTTE M.

Summary

Thermal conductivity of Refrigerants in the liquid state is an open issue: the continuous development of new refrigerants always implies the necessity of new thermal conductivity values. Since measured values usually don't cover the entire temperature range of industrial interest, estimation methods have intense application. A lack of consistent theories of the liquid state still generates an absence of reliable theoretical methods, so empirical estimation is the most used way to produce thermal conductivity values at different temperatures. In this paper a comparison of three different methods to estimate thermal conductivity is presented; the database used for this comparison contains almost used refrigerants belonging to the methane, ethane and propane series (almot all those included in ASHRAE Standard 34) and a wide temperature range (reduced temperature from 0.30 to 0.95) is considered. Conclusions are drawn regarding accuracy of these methods and possible improvements.

Available documents

Format PDF

Pages: 8 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: Thermal conductivity of refrigerants in the liquid state: a comparison of some estimation methods.
  • Record ID : 30003193
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

Links


See other articles from the proceedings (569)
See the conference proceedings

Indexing