Measurements of the viscosity of R134a and R32 in the temperature range 270–340 K at pressures up to 20 MPa |
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| Authors: | Assael M J Dymond J H Polimatidou S K |
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| Affiliation: | (1) Faculty of Chemical Engineering, Aristotle University, 54006 Thessaloniki, Greece;(2) Chemistry Department, University of Glasgow, G12 8QQ Glasgow, UK |
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| Abstract: | This paper reports new measurements of the liquid viscosity of R134a and R32 in the temperature range 270 to 340 K and pressures up to 20 MPa. The measurements have been carried out in a vibrating-wire instrument calibrated with respect to the standard reference value of the viscosity of water. It is estimated that the uncertainty of the present viscosity data is one of 0.5%. The experimental data have been represented by polynomial functions of temperature and pressure for the purposes of interpolation. |
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| Keywords: | high pressure refrigerants R134a R32 vibrating-wire technique viscosity |
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