摘要
对于脉冲式平面热源法实验中的脉冲加热持续时间对测量的影响以及热参数计算公式中的f系数做了理论分析,建立了相应的实验装置并对一些常见材料进行实际测量,系统分析了热导率和热扩散率以及体积热容测试的不确定度。
The influence of pulse heating duration on measurement and the f coefficient in the formula for calculating thermal parameters in the experiment of plane source-pulse transient method are theoretically analyzed. The corresponding experimental apparatus is established and some commonly used materials are measured in practice. The uncertainty of thermal conductivity, thermal diffusivity and volume heat capacity measurement are systematically analyzed.
作者
于帆
张欣欣
YU Fan;ZHANG Xinxin(School of Energy & Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《化工学报》
EI
CAS
CSCD
北大核心
2019年第A02期70-75,共6页
CIESC Journal
关键词
测量
热传导
传热
热导率
热扩散率
脉冲式平面热源法
measurement
heat conduction
heat transfer
thermal conductivity
thermal diffusivity
plane source-pulse transient
