Abstract
New, absolute measurements of the thermal conductivity of liquid toluene are reported. The measurements extend over the temperature range 35–90°C and the pressure range 0.8–600 MPa. A new analytic evaluation of the contribution of radiation in an absorbing emitting fluid to the measurement process is presented. This analysis indicates that the thermal conductivity determined in a transient hot-wire instrument is the radiation-free value. As a consequence it is possible to assert that the overall uncertainty in the experimental data is one of ± 0.3%. A comparison of the data with the results of independent measurements by the same technique shows that the various sets of data are consistent within their mutual uncertainty.
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de Castro, C.A.N., Li, S.F.Y., Maitland, G.C. et al. Thermal conductivity of toluene in the temperature range 35–90°C at pressures up to 600 MPa. Int J Thermophys 4, 311–327 (1983). https://doi.org/10.1007/BF01178782
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DOI: https://doi.org/10.1007/BF01178782