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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 4    August 2003

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Numerical calculation of thermal field and heat transfer coefficient for 160kA aluminum reduction cell
FENG Nai-xiang(冯乃祥)1, LIANG Fang-hui(梁芳惠)1,
SUN Yang(孙 阳)1, PENG Jian-ping(彭建平)1,
LENG Zheng-xu(冷正旭)2, XIE Qing-song(谢青松

1. School of Materials and Metallurgy,
Northeastern University, Shenyang 110004, China;
2. Guizhou Aluminum Smelter, Guiyang 550014, China

Abstract:The principle of thermal flux being constant in heat-flow-tube and the principle of heat balance were applied to analyze and calculate the steady-state thermal field and the electrolyte-ledge heat transfer coefficient of aluminum reduction cell by finite element method. The calculated results show that the melt-ledge heat transfer coefficient in the 160kA prebaked anode aluminum reduction cell of Guizhou Aluminum Smelter is higher than that of other cells of the same current. It is also found that the electrolyte and metal flow much faster, which may be the results of poor bus bar arrangements. Meanwhile, the calculated results of melt-ledge heat transfer coefficient by heat-flow-tube method are almost in full agreement with the former works. This verifies the applicability of this method.

 

Key words: aluminum reduction cell; heat-current-tube; finite element method; heat transfer; heat balance

ISSN 1672-7029
CN 43-1423/U

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