Share

IIR document

THERMAL DIFFUSIVITY OF REFRIGERANTS.

Author(s) : KRUPPA B., STRAUB J.

Summary

THE AUTHORS PRESENT THE MEASUREMENT METHOD BASED ON THE DYNAMIC DIFFUSION OF A LASER BEAM ; THE FLUID BEING UNDER A THERMODYNAMIC EQUILIBRIUM STATE, THERMAL DIFFUSIVITY IS DEDUCED FROM TRANSPORT MECHANISMS, AT THE MICROSCOPIC STATE. INDEED, MICROSCOPIC DENSITY FLUCTUATIONS ARE PERMANENTLY PRODUCED INDUCING DIFFUSION -IN ALL DIRECTIONS -OF THE LASER BEAM. THE RELAXATION TIME OF THESE FLUCTUATIONS PROVIDES DATA ON THERMAL DIFFUSIVITY, FROM WHIC H TC THE AUTHORS HAVE SYSTEMATICALLY STUDIED: R22, R13, R13B1, R23, R744, NITROUS OXIDE AS WELL AS 3 MIXTURES. THE MEASUREMENTS CAN BE INTERPRETED BY A SET OF EQUATIONS.

Available documents

Format PDF

Pages: 1990-1

This document is to be digitised and will be available within 10 working days

  • 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 DIFFUSIVITY OF REFRIGERANTS.
  • Record ID : 1991-1033
  • Languages: English
  • Source: Thermophysical properties of pure substances and mixtures for refrigeration.
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (31)
See the conference proceedings

Indexing