摘要
论述了应用激光引发热栅方法测量无机盐水溶液热扩散系数的实验原理和技术,给出了氯化钠水溶液在溶质质量摩尔浓度为0～4 mol/kg和290～373 K温度范围内的热扩散系数的测量结果,并与文献数据进行了比较. 最后以实验数据为基础,给出了计算氯化钠水溶液热扩散系数的经验关联式.
The principle and measuring technique for determining the thermal diffusivity of aqueous solutions of sodium chloride using the laser-induced thermal grating technique are described. Experimental thermal diffusivity data are presented for aqueous solutions of sodium chloride in the temperature range of 290 to 373 K and concentration range of 0 to 4 mol/kg. The results converted to thermal conductivity appear good agreement with the experimental data in the literature. On the basis of the experimental thermal diffusivity data, an empirical correlation for calculating the thermal diffusivity of aqueous solutions of sodium chloride is given.
出处
《上海理工大学学报》
CAS
北大核心
2001年第4期328-333,共6页
Journal of University of Shanghai For Science and Technology
基金
德国研究委员会(DFG)资助项目(Fi 139/41-4)
关键词
氯化钠
水溶液
热扩散系数
导热系数
激光引发热栅
衍射
制冷剂
sodium chloride
aqueous solutions
thermal diffusivity
thermal conductivity
laser-induced thermal grating
diffraction
