Thermophysical properties of n-hexadecane: Combined molecular dynamics and experimental investigations. (October 2022)

• Record Type: Journal Article
• Authors: Klochko, L.; Noel, J.; Sgreva, N.R.; Leclerc, S.; Métivier, C.; Lacroix, D.; Isaiev, M.
• Is Part Of: International communications in heat and mass transfer. Volume 137(2022)
• Publication Date: 2022-10
• Subjects: Thermal conductivity -- Viscosity -- Molecular dynamics -- Phase change materials (PCMs); Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Heat -- Transmission; Mass transfer; Periodicals; 621.4022
• DOI: 10.1016/j.icheatmasstransfer.2022.106234
• Languages: English
• ISSNs: 0735-1933

Abstract

Abstract: Investigating properties of phase change materials (PCMs) is an important issue due to their extensive use in heat storage systems and thermal regulation devices. Improvement of the efficiency of such systems should be based on a better knowledge of the microscopic mechanisms governing the thermal and rheological characteristics of PCMs. This may be accomplished by the use of molecular simulations of the aforementioned quantities and their linkage with macroscale investigations. In this work, we studied thermophysical properties of n -hexadecane for different temperatures regimes using molecular dynamics (MD) and carry out several experimental measurements. Particularly, we focused on the evaluation of various rheological and thermal properties such as thermal conductivity, κ, viscosity, η, diffusion coefficient, D, and heat capacities C p and C v . Special attention was paid to the comparison of the results of simulations with experimental ones.