有机物水溶液导热系数的关联

Correlation for Thermal Conductivity of Organic Aqueous Solution

根据对有机物水溶液导热系数影响因素的分析,在Horvath液体导热系数关系式的基础上,导出了估算有机物水溶液导热系数的计算模型;利用该模型计算了14个体系中447个数据点的不同温度和组成的二元水溶液导热系数;结果表明,计算值与实验数据吻合很好,其与实验值的总平均相对偏差为1.03%,计算准确性优于文献方法。本文计算方法简单方便,只需知道水溶液各组分的临界温度、临界体积和导热系数数据,就可以直接预测各种温度和组成的有机物水溶液混合物的导热系数。

According to analysis on the influence factors of thermal conductivity for organic aqueous solutions, on the basis of Horvath equation for thermal conductivity of liquid matter, a calculation model for evaluating the thermal conductivity of organic aqueous solutions was derived. Thermal conductivity of binary organic aqueous solutions for 14 systems containing 447 data points at different temperatures and constitutes was calculated by using of this model. Result indicates that calculating values coincide very good with experimental data, overall average relative deviation of the calculated values is 1.03% compared with the experimental data, calculation accuracy is better than that obtained from literature. The proposed method is simple and conven- ient ;thermal conductivity of the organic aqueous solution （mixture solution）can be immediately predicted, only by knowing the critical temperature, critical volume and thermal conductivity data of each component of aqueous solution.