一种高导热材料导热系数测试仪的研制  

Development on instrument for testing thermal conductivity of high thermal conductivity material

作　　者：许欣[1] 周孑民[1] 王莹[1] 陈晓玲[1] 杨劲[1] 

机构地区：[1]中南大学能源科学与工程学院,湖南长沙410083

出　　处：《热科学与技术》2008年第3期247-251,共5页Journal of Thermal Science and Technology

基　　金：中南大学研究生教育创新工程资助(1343-77326)

摘　　要：对经典周期热流法进行了研究和改进,采用实验测试和数值仿真相结合的研究方法,设计开发了一套简单实用,数据可靠的高导热材料导热系数测试装置。通过编程技术,实现了数据的自动采集及处理。应用有限容积法建立二维模型,借助Visual Basic语言,开发了该测试系统在线仿真的软件系统。最后根据实验结果和文献值对该测试系统进行评价。A classical thermal conductivity measuring method, called Periodic heat flow method, was improved in this paper. Adopting the method of experimental study and numerical simulation, a test system which is simple, feasible and credible was designed to determine the thermal conductivity of high thermal conductivity material. The experimental data was collected and processed automatically. A 2-D thermal model was set up by finite volume method and a set of on-line emulation software of this test system was developed in Visual Basie language. Finally the test system was valuated by the test results and the data from literature.

关 键 词：周期热流法 高导热材料 导热系数 

分 类 号：TB941[一般工业技术—计量学]