Viscosity and thermal conductivity of halogenated methane and ethane refrigerants |
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Affiliation: | 1. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, China;2. Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong, China |
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Abstract: | Viscosity and thermal conductivity of liquid halogenated methane and ethane refrigerants from about 200 K to near the critical temperature, at saturation and also at pressures up to 50 MPa, are shown to be satisfactorily correlated on the basis of a scheme developed by Dymond and Assael from consideration of hard-sphere theory. For the 31 refrigerants considered here, from the 1445 viscosity and 1226 thermal conductivity measurements examined only 5.2% were found to deviate by more than 5% from the proposed scheme. |
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