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脉冲式平面热源法测量材料热导率和热扩散率的分析与实验

于帆 张欣欣

化工学报2019,Vol.70Issue(z2):70-75,6.
化工学报2019,Vol.70Issue(z2):70-75,6.DOI:10.11949/0438-1157.20190550

脉冲式平面热源法测量材料热导率和热扩散率的分析与实验

Analysis and experiments of measuring thermal conductivity and diffusivity of materials by plane source-pulse transient method

于帆 1张欣欣1

作者信息

  • 1. 北京科技大学能源与环境工程学院,北京100083
  • 折叠

摘要

Abstract

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.

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

Key words

measurement/ heat conduction/ heat transfer/ thermal conductivity/ thermal diffusivity/ plane source-pulse transient

分类

能源科技

引用本文复制引用

于帆,张欣欣..脉冲式平面热源法测量材料热导率和热扩散率的分析与实验[J].化工学报,2019,70(z2):70-75,6.

化工学报

OA北大核心CSCDCSTPCD

0438-1157

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