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Numerical simulation of current distribution in metal pad of aluminum reduction cells QI Xi-quan(戚喜全), FENG Nai-xiang(冯乃祥), CUI Jian-zhong(崔建忠) (School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract: Based on the numerical calculation of 3-D potential distribution in aluminum reduction cells, current distribution in the metal pad is calculated under......
J. Cent. South Univ. Technol. (2009) 16: 0166-0171 DOI: 10.1007/s11771-009-0028-0 Formation mechanism of aerodynamic drag of high-speed train and some reduction measures TIAN Hong-qi(田红旗)1, 2...; Abstract: Aerodynamic drag is proportional to the square of speed. With the increase of the speed of train, aerodynamic drag plays an important role for high-speed train. Thus, the reduction......
Magneli phase titanium sub-oxide conductive ceramic TinO2n-1 as support for electrocatalyst toward oxygen reduction reaction with high activity and stabilityWU Qiu-mei(伍秋美)1, RUAN Jian-ming(阮建明)1..., and Pt/TinO2n-1 composites were prepared by the impregnation-reduction method. The electrochemical stability of TinO2n-1 was investigated and the results show almost no change in the redox region......
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Application of fiber Bragg grating sensor network in aluminum reduction tank shell temperature monitoringJIANG Ming-shun(姜明顺)1,2, SUI Qing-mei(隋青美)1, MIAO Fei(苗飞), Jia Lei(贾磊)1, PENG Peng(彭蓬)2(1... temperature sensor network was designed to implement the real-time health monitoring of the aluminum reduction cell. The heat transfer process was simulated using software ANSYS, and an on-line shell......
Reduction Kinetics of Nickel Sulphide刘中华,刘纯鹏摘 要:<正> Reduction kinetics of Ni3S2 was experimen-tally studied by following the time required forcompletion of the hydrogen reduction reaction inthe presence of calcium oxide.A simple empiricalintegration equation,derived for describing the ef-fect of CaO/S molar ratio,temperature,hydrogenconcentration......
J. Cent. South Univ. Technol. (2010) 17: 765-769 DOI: 10.1007/s11771-010-0554-9 Extraction of valuable metals from low-grade nickeliferous laterite ore by reduction roasting-ammonia leaching method... nickeliferous laterite ore using a reduction roasting-ammonia leaching method. The reduction roasting-ammonia leaching experimental tests were chiefly introduced, by which fine coal was used......
Maintenance decision-making method for manufacturing system based on cost and arithmetic reduction of intensity modelLIU Fan-mao(刘繁茂)1, ZHU Hai-ping(朱海平)2, LIU Bo-xing(刘伯兴)2(1. Hunan Provincial Key... choice of maintenance actions to be performed on a selected group of machines for manufacturing systems. The arithmetic reduction of intensity model was introduced to describe the influence on machine......
Slope analysis based on local strength reduction method and variable-modulus elasto-plastic modelYANG Guang-hua(杨光华)1, 2, 3, 4 , ZHONG Zhi-hui(钟志辉)1, FU Xu-dong(傅旭东)1, ZHANG Yu-cheng(张玉成)2, 3, WEN..., Guangzhou 510640, China)Abstract:Employing an ideal elasto-plastic model, the typically used strength reduction method reduced the strength of all soil elements of a slope. Therefore, this method was called......
J. Cent. South Univ. Technol. (2008) 15: 198-203 DOI: 10.1007/s11771-008-0038-3 Simulation of thermal and sodium expansion stress in aluminum reduction cells LI Jie(李 劼), WU Yu-yun(伍玉云), LAI... in the cathode carbon block than thermal expansion. Key words: aluminum reduction cell; stress; sodium penetration; sodium expansion; simulation  ......