MEASUREMENTS AND CORRELATION OF THE THERMAL-CONDUCTIVITY OF LIQUID NORMAL-PARAFFIN HYDROCARBONS AND THEIR BINARY AND TERNARY MIXTURES

The thermal conductivity of four pure normal paraffin hydrocarbons (C//1//1, C//1//4, C//1//5, C//1//6) and binary and ternary mixtures of three n-paraffin hydrocarbons (C//7, C//1//1, C//1//6) have been measured in the temperature range from about 20 to 90 degree C at atmospheric pressure. Measurements have been performed with the aid of a fully automated transient hot-wire instrument. The accuracy of the reported data is estimated to be plus or minus 1. 0 to plus or minus 1. 5%. A new simple and practical equation, which can calculate the thermal conductivity of pure n-paraffin hydrocarbons (4 less than equivalent to n less than equivalent to 16) with the uncertainty of plus or minus 1%, has been correlated in terms of temperature and number of carbon atoms based on the present results including some other reliable data.