表面光散射法正十六烷高温热物理性质研究  

Thermophysical Properties of n-Hexadecane at Elevated Temperatures by Surface Light Scattering

作　　者：赵贯甲[1,2] 元泽民 毕胜山 尹建国[1,2] 吴江涛[3] 马素霞 ZHAO Guan-Jia;YUAN Ze-Min;BI Sheng-Shan;YIN Jian-Guo;WU Jiang-Tao;MA Su-Xia(College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Key Laboratory of Clean and Efficient Combustion and Utilization in the Circulating Fluidized Bed,Taiyuan 030024,China;MOE Key Laboratory of Thermal-Fluid Science and Engineering,Xi’an Jiaotong University,Xi'an 710049,China)

机构地区：[1]太原理工大学电气与动力工程学院,太原030024 [2]循环流化床高效清洁与利用山西省重点实验室,太原030024 [3]西安交通大学热流科学与工程教育部重点实验室,西安710049

出　　处：《工程热物理学报》2021年第3期559-564,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51976132,No.51776171)。

摘　　要：为拓展高温下流体黏度和表面张力的测量,改进了原有的表面光散射实验系统,将实验的温度区间拓展至570K,改进后的系统在整个温区内测量黏度和表面张力的扩展不确定度分别为2%和1%(k=2)。利用新的实验系统研究了正十六烷在353~547 K温度范围内的黏度和表面张力,并利用实验数据分别拟合了温度倒数多项式和van der Waals方程,在全温度范围内实验值与方程的偏差均在1%之内。在较宽的温度范围内获得的正十六烷的高精度黏度和表面张力数据和方程,可以作为参考数据和方程,用于相关仪器的标定和检验。The present work built the surface light scattering system for simultaneously measuring liquid viscosity and surface tension of fluids up to 570 K with the expanded uncertainties of 2%and 1%at a level of 95%confidence,respectively.By utilizing the new apparatus,the liquid viscosity and surface tension of n-hexadecane were measured in the temperature range from 353 K to 547 K and the experimental data were correlated as a polynomial equation of reciprocal temperature and van der Waals type equation.The deviations of experiment data for both properties from the correlated equations are within±1%.The obtained liquid viscosity and surface tension data and equations in wide temperature range could be adopted as reference data and equations for the calibration and check of related equipment or apparatus.

关 键 词：表面光散射 表面张力 黏度 密度 正十六烷 

分 类 号：TK121[动力工程及工程热物理—工程热物理]