Prediction of the Thermal Conductivity for Liquid Hydrocarbons and Halogenated Hydrocarbons

The thermal conductivity of compressed liquids has received less attention in prediction models compared with saturated liquids. This work proposes a new thermal conductivity prediction model for alkanes, alkenes, and halogenated hydrocarbons for saturated and compressed liquids. The model based on dimensional analysis was developed for n-alkanes. The critical temperature, critical density, molecular weight, reduced temperature, reduced density, and acentric factor of each fluid are required. Introducing the reduced density effectively implements the thermal conductivity calculation of the compressed liquid. Then, the particle density was found to affect the thermal conductivity of halogenated and isomeric hydrocarbons compared with normal hydrocarbons. Hence, a model with a correction term related to the particle density was developed for halogenated and isomeric hydrocarbons. Good agreements between the calculated results and experimental data for n-alkanes and halogenated (or isomeric) hydrocarbons were obtained with average absolute relative deviation values of 1.74% and 3.03%, respectively.