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Document IIF

Mesures de la viscosité du R32, du R134A et du R1234ze(Z).

Viscosity measurements of R32, R134A and R1234ze(Z).

Numéro : pap. n. 476

Auteurs : MATSUGUCHI A., KAGAWA N.

Résumé

A compact torsionally oscillating crystal viscometer was used to measure viscosity coefficients of R 32, R 134a and R 1234ze(Z). To derive viscosity coefficients, resonance frequencies and bandwidths of the crystal were automatically measured with a developed measuring system and its software. Viscosity data of R 32, R 134a and R 1234ze(Z) were measured at temperatures ranging from 303 to 450 K at pressures up to 20 MPa in their liquid regions. The uncertainty of the measurements was estimated to be about 5 %. The experimental data of R 134a were compared with calculated data from a correlation.

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Pages : 6 p.

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Détails

  • Titre original : Viscosity measurements of R32, R134A and R1234ze(Z).
  • Identifiant de la fiche : 30015916
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0476

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