Viscosity of pure carbon dioxide at supercritical region: Measurement and correlation approach

摘要

In this paper a method to calculate the viscosity of supercritical CO2 is introduced. A rolling body viscometer equipped with a gas booster was used. Based on new experimental and available data, a new correlation is developed. The proposed correlation is valid in temperature range from 310 K to 900 K. Moreover, the model predictions are acceptable in pressures between 7.5 and 101.4MPa. The model superiority over other conventional methods has been demonstrated.