Determination and Study on Thermo-physical Properties of Graphitized Cathode Carbon Material for Aluminum Reduction Cell

Chang-hong WANG; Jie-min ZHOU

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Determination and Study on Thermo-physical Properties of Graphitized Cathode Carbon Material for Aluminum Reduction Cell

Chang-hong WANG * #,Jie-min ZHOU

School of Energy and Power Engineering ，Central South University

*Correspondence author

#Submitted by

Subject:

Funding: 国家自然科学基金（No.No. 50376076）

Opened online:20 June 2005

Accepted by: none

Citation: Chang-hong WANG,Jie-min ZHOU.Determination and Study on Thermo-physical Properties of Graphitized Cathode Carbon Material for Aluminum Reduction Cell[OL]. [20 June 2005] http://en.paper.edu.cn/en_releasepaper/content/2229

In this research, a transient experimental system was designed to determine the thermo-physical properties of the graphitized cathode material for aluminum reduction cell by employing modern electrical facilities and data acquisition apparatus, according to the experimental modeling and the characteristic of graphitized cathode carbon. The periodic heat flow was recognized by the two thermocouples as a sinus temperature variation with decreasing amplitude and increasing phase lag when the heat wave propagated through the specimen. The thermal diffusivity can be calculated directly by processing experimental data, and then the thermal conductivity can be obtained with relation to thermal diffusivity if the specific heat and the density are known. The method and the instrument are applicable in the temperature 20~300℃. The research on the method and the measuring system will pave the way to obtain the feasible thermo-physical properties data.

Keywords:Periodic heat flow method; Thermal conductivity; Thermal diffusivity; Graphitized cathode; Aluminum reduction cell

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