Thermal conductivity of heavy, even-carbon number n-alkanes (C22 to C32)

• Published in: Fluid phase equilibria Vol. 477; pp. 78 - 86
• Main Authors: Fleming, Felipe Pereira, de Andrade Silva, Lívia, Lima, Guilherme dos Santos Vieira, Herzog, Iasmin, Orlande, Hélcio Rangel Barreto, Daridon, Jean-Luc, Pauly, Jérôme, Azevedo, Luis Fernando Alzuguir
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15-12-2018; Elsevier
• Subjects: Applied geology; Chemical Physics; Earth Sciences; Engineering Sciences; Entalpy of fusion; Geophysics; Mechanics; Melting point; n-Alkanes; Physics; Sciences of the Universe; Thermal conductivity; Thermophysical properties; Thermal conductivity; n-Alkanes; Thermophysical properties; Melting point; Entalpy of fusion
• ISSN: 0378-3812; 1879-0224
• DOI: 10.1016/j.fluid.2018.08.016

The thermal conductivity of even carbon number n-alkanes from n-dodecane to n-dotriacontane (C22H46 to C32H66) was measured in both the liquid and solid phases, in the temperature range from 297.15 to 353.15 K at 0.1 MPa. To assure the purity and map the solid phase of the different samples during the thermal conductivity measurements of the solid samples, the melting point, solid-solid transition temperature and their respective enthalpies were also evaluated. The thermal conductivity measurements for the liquid and solid samples were obtained within uncertainty levels better than 3% and 5%, respectively. To the best of our knowledge, this is the first report on the thermal conductivity of liquid n-hexacontane, n-octacontane, n-triacontane and n-dotriacontane, and, for solid samples, from n-docosane to n-dotriacontane.