Measurement of the thermal conductivity of liquids by hot wire method: comparison between transient and stationary approaches

Jean-Pierre Monchau, Nicolas Lalanne, Laurent Ibos, Cosimi Corletto
2017 18th International Congress of Metrology   unpublished
This work concerns the characterization of the thermal conductivity of liquids by hot wire method. A measuring cell has been specially developed for this study. The method of analysing the transient response makes it possible to obtain values of conductivity close to those expected (deviations <4%) for two reference fluids and measurement uncertainties in the order of 5%. The use of the so-called steady state method (ASTM D 2717) leads to relative deviations and uncertainties of the
more » ... of the measurements about 3 times higher.
doi:10.1051/metrology/201706003 fatcat:opyhx6tjuncsbpdgu3lni54mtm