Viscosity of Gaseous Mixtures of HCFC-22 + HCFC-142b at Pressures to 6.3 MPa |
| |
Authors: | M Takahashi D Tomida C Yokoyama |
| |
Affiliation: | (1) Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira 2-1-1, Sendai 980-8577, Japan |
| |
Abstract: | The gaseous viscosity of non-azeotropic mixtures of HCFC-22 and HCFC-142b was measured by an oscillating disk viscometer of
the Maxwell type from 298.15 K to 423.15 K and at pressures up to 6.3 MPa. The viscosity at approximately atmospheric pressure
was predicted with a maximum deviation of 1.84 % and an average deviation of 0.61 % by the Sutherland-Thiesen equation, coefficients
of which were determined by the Brokaw method. An empirical equation was developed for the viscosity as a function of composition,
temperature, and density. This equation reproduced the observed viscosity with a maximum deviation of 5.61 % and an average
deviation of 1.14 %. |
| |
Keywords: | HCFC-22 HCFC-142b Sutherland-Thiesen equation Viscosity |
本文献已被 SpringerLink 等数据库收录! |