Viscosity of methane-chlorodifluoromethane (R22) gaseous mixtures in the temperature range from 298.15 to 373.15K and at pressures up to 5MPa.

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概要

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• The gas-phase viscosity of the methane-chlorodifluoromethane (R22) system was measured in the temperature range from 298.15 to 373.15 K and at pressures up to 5MPa. The measurements were performed with a Maxwell type oscillating-disc viscometer. The viscosity at atmospheric pressure was correlated by three methods: the Chapman-Enskog equation, the Sutherland equation with Wilke combination factors and the Sutherland equation with Brokaw factors. It was found that the results calculated from the Sutherland equation with Brokaw combination factors gave the best agreement with the experimental data. The viscosity data at various pressures could not be correlated successfully by the residual viscosity correlations of Dean and Stiel or the equation of Pedersen et al. A new empirical equation for the correlation factor was proposed that extends the corresponding states viscosity equation with methane as the reference substance to the polar substance R22.

• 公益社団法人 化学工学会の論文

著者

• YOKOYAMA CHIAKI

  Chemical Research Institute of Non-Aqueous Solutions, Tohoku University

• KONGO MASARU

  College of Industrial Technology, Nihon University

• TAKAHASHI SHINJI

  Chemical Research Institute of Non-Aqueous Solutions, Tohoku University

関連論文

• Viscosity of methane-chlorodifluoromethane (R22) gaseous mixtures in the temperature range from 298.15 to 373.15K and at pressures up to 5MPa.
• Viscosity of chlorodifluoromethane (R22) at high pressures.

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