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Article Dans Une Revue Fluid Phase Equilibria Année : 2018

Measurements of the thermal conductivity of ethene in the supercritical region

Résumé

Measurements of the thermal conductivity of ethene performed for the first time, in a coaxial cylinder cell, operating in steady state conditions are reported. The measurements of the thermal conductivity of ethene were carried out along eight quasi-isotherms above the critical temperature. The present data cover the temperature range from 283.46 K to 425.00 K, and the pressure range 0.1–100 MPa. An analysis of the different sources of error leads to an estimated uncertainty (0.95 level of confidence) of ±3%. The parameters of a background equation were determined from experimental data in order to analyze the critical enhancement of the thermal conductivity as a function of temperature and density. Based on the measurement of more than 500 experimental points, a phenomenological equation is provided to describe the thermal conductivity of ethene, from 270 K to 425 K and densities up to 500 kg m−3.

Domaines

Matériaux
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Dates et versions

hal-01708870 , version 1 (14-02-2018)

Identifiants

Citer

Bernard Le Neindre, Guillaume Lombardi, Philippe Desmarest, Marie Kayser, Z.I. Zaripov, et al.. Measurements of the thermal conductivity of ethene in the supercritical region. Fluid Phase Equilibria, 2018, 459, pp.119-128. ⟨10.1016/j.fluid.2017.11.013⟩. ⟨hal-01708870⟩
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