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Viscosity Measurements of R32 and R410A to 350 MPa

Published

Author(s)

Arno D. Laesecke, Scott Bair

Abstract

Viscosity measurements were performed with a falling cylinder viscometer on difluoromethane (R32) and the refrigerant blend R410A (R32+R125 with 50 % by mass) at the temperatures 313.15 K, 348.15 K, and 393.15 K with pressures to 350 MPa. The measurement results are compared with literature data and with data calculated with an extended corresponding states (ECS) model. The agreement with literature data is closer for R410A than for R32 while the deviations from the ECS model are higher for R410A than for R32. Correlations that represent the new results as functions of temperature and pressure within their uncertainty are also reported.
Citation
International Journal of Refrigeration-Revue Internationale Du Froid
Volume
83

Keywords

Binary mixture, Falling body viscometer, molecular interactions, refrigerants, tribology, viscosity

Citation

Laesecke, A. and Bair, S. (2017), Viscosity Measurements of R32 and R410A to 350 MPa, International Journal of Refrigeration-Revue Internationale Du Froid, [online], https://doi.org/10.1016/j.ijrefrig.2017.07.016 (Accessed April 20, 2024)
Created August 1, 2017, Updated November 10, 2018