Thermal conductivity is one of the most important properties of materials especially liquids. Thermal conductivity is highly interesting since it is the main parameter required for most heat-transfer calculations or design of industrial equipments such as heat exchangers. Unfortunately, thermal conductivity is extremely hard to be experimentally measured due to some operational issues which shifted the researchers' interest toward proposing a correlation to predict this property. In the light of this limitation, in the current study, a four-parameter correlation based on critical temperature (TcÞ, critical pressure (PcÞ and acentric factor (!Þ of substances is proposed to predict thermal conductivity of liquids. In this way, 956 experimental data points collected from previously published literatures were divided into two di®erent subsets, namely training and testing subsets, in the ¯rst stage and then used to ¯nd the optimum values of ¯tting parameters of the proposed correlation. Based on the obtained results of error analysis, it can be concluded that the proposed correlation has capability of both extrapolating and correlating the thermal conductivity of liquids.
کلید واژگان :Correlation; thermal conductivity; hydrocarbons; aromatics; critical properties.
ارزش ریالی : 600000 ریال
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