Measurement of the thermal conductivity of liquids by hot wire method: comparison between transient and stationary approaches
1 THEMACS Engineering, 23 rue Alfred Nobel, 77420 Champs-sur-Marne, France
2 CERTES / OSU Efluve, Université Paris-Est Creteil, 61 avenue du Général de Gaulle, 94010 Créteil Cedex, France
* Corresponding author: email@example.com
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 measurements about 3 times higher.
© The Authors, published by EDP Sciences, 2017
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