MEASUREMENTS OF THE VISCOSITY OF R134A AND R32 IN THE TEMPERATURE-RANGE 270-340-K AT PRESSURES UP TO 20-MPA

Authors
ASSAEL MJ DYMOND JH POLIMATIDOU SK
Citation
Mj. Assael et al., MEASUREMENTS OF THE VISCOSITY OF R134A AND R32 IN THE TEMPERATURE-RANGE 270-340-K AT PRESSURES UP TO 20-MPA, International journal of thermophysics, 15(4), 1994, pp. 591-601
Citations number
19
Categorie Soggetti
Physics, Applied","Chemistry Physical
Journal title
International journal of thermophysics → ACNP
ISSN journal
0195928X
Volume
15
Issue
4
Year of publication
1994
Pages
591 - 601
Database
ISI
SICI code
0195-928X(1994)15:4<591:MOTVOR>2.0.ZU;2-I
Abstract
This paper reports new measurements of the liquid viscosity of R134a a nd R32 in the temperature range 270 to 340 K and pressures up to 20 MP a. The measurements have been carried out in a vibrating-wire instrume nt calibrated with respect to the standard reference value of the visc osity of water. It is estimated that the uncertainty of the present vi scosity data is one of 0.5%. The experimental data have been represent ed by polynomial functions of temperature and pressure for the purpose s of interpolation.