Measurement of thermal conductivity and kinematic viscosity of 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFE-356mmz)

• Published in: International journal of refrigeration Vol. 103; pp. 1 - 8
• Main Authors: Alam, Md. Jahangir, Kariya, Keishi, Yamaguchi, Kotaro, Hori, Yoshiya, Miyara, Akio
• Format: Journal Article
• Language: English
• Published: Paris Elsevier Ltd 01.07.2019; Elsevier Science Ltd
• Subjects: Capillary tubes; Conductivité thermique; Heat conductivity; Heat pumps; Heat transfer; HFE-356mmz; High temperature; Hot wire method; Kinematic viscosity; Kinematics; Liquid phases; Measurement; Méthode des tubes capillaires en tandem; Méthode du fil chaud en régime transitoire; Rankine cycle; Tandem capillary tubes method; Temperature; Thermal conductivity; Transient hot wire method; Uncertainty; Vapor phases; Viscosity; Viscosité cinématique; Working fluids; Tandem capillary tubes method; Méthode des tubes capillaires en tandem; Conductivité thermique; Thermal conductivity; Viscosité cinématique; Kinematic viscosity; Méthode du fil chaud en régime transitoire; HFE-356mmz; Transient hot wire method
• ISSN: 0140-7007; 1879-2081
• DOI: 10.1016/j.ijrefrig.2019.03.024

•HFE-356mmz is a low global warming working fluid.•Thermal conductivity measurements are presented using transient hot wires method.•Kinematic viscosity measurements are reported using tandem capillary tubes method.•Correlations have developed for saturation liquid and vapor. Hydrofluoroether 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFE-356mmz) is a promising candidate of low global warming working fluid in high-temperature heat pumps and organic Rankine cycle. In this study, the thermal conductivity was measured by using a transient hot wire method in the conditions of temperature from 319 to 462 K and pressure from 0.5 to 4.0 MPa for the liquid phase, and temperature from 393 to 452 K and pressure from 0.18 to 1.04 MPa for vapor phase. The combined standard uncertainties of thermal conductivity measurements were estimated to be less than 2.3% at liquid and 2.6% at vapor phases. On the other hand, the kinematic viscosity was measured by using tandem the capillary tubes method over the temperature range of 313–454 K for liquid and from 393 to 475 K for vapor phase up to 4.00 MPa. The uncertainties in liquid and vapor phases were estimated to be less than 2.9% and 3.0%, respectively. Also, correlations have been developed for saturated liquid and vapor.