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; flow field; aluminum reduction cell; finite element analysis; [全文内容正在添加中] .... Furthermore, a new modeling method is found to set up solid models and then mesh them entirely with so-called structuralized grids, namely hex-mesh. Examples of 75kA prebaked cell with two kinds......
the onset of rupture. Finally, the aluminum foam with uniform cell structure can be obtained. The density is about 0.4 g/cm3, porosity is in the range of 85%-90% and the aperture is 4-7 mm. Key words... have occurred, and new dot material generates. Analyzed by EDX, these new generated dots may be Al2O3. Under a certain condition, we can prepare aluminum foam with uniform cell structure. Fig.5 SEM......
, the above method can provide more flow field information with higher precision and theoretical guidance for the structural design of the cell. Key words: aluminum reduction cell; electrolyte; vortex... of the characteristics of the rotation flow of the melt in aluminum reduction cells, the methods of vorticity and swirling strength were introduced to analyze the vortical structures of aluminum reduction cells......
Trans. Nonferrous Met. Soc. China 25(2015) 3753-3759 Ambient electrical conductivity of carbon cathode materials for aluminum reduction cells Jun ZHU1,2, Ji-lai XUE1,2, Ya-nan ZHANG1, Xiang LI1, Tong... cathode; electrical conductivity; porosity; crystal structure; aluminium reduction cell 1 Introduction Carbon cathode materials are widely applied to electrolytic cells, arc furnaces and energy storage......
of the sound absorption mainly depends on the Helmholtz resonator, the microphone as well as cracks of closed-cell aluminum foam. The sound insulation experiments show that the sound reduction index... information for its application in such fields as sound insulation and noise reduction. 2 Experimental 2.1 Preparation of closed-cell aluminum foam For making the foams, two different metals......
J. Cent. South Univ. (2012) 19: 2572-2577 DOI: 10.1007/s11771-012-1312-y A model and simulation of cathode flooding and drying on unsteady proton exchange membrane fuel cell A. Bakhtiar1, KIM... balance has a significant impact on the overall system performance in proton exchange membrane fuel cell. An actual fuel cell application has a dynamic electrical load which means also dynamic......
要一定的时间,假设为10 s. 图1 铝电解槽下料点位置示意图 Fig. 1 Schematic diagram of alumina feeding points in aluminum reduction cell 为此,本文作者采用的基准周期为72 s,每个周期的下料量根据全槽氧化铝消耗量得到.假设下料点为6个(见图1),按照工艺设计要求,下料期间6个点同时下料,氧... reduction cell 表2 模型计算边界条件 Table 2 Boundary conditions of fluid 表3 某420kA铝电解槽工艺与结构参数 Table 3 Polytechnic and structural parameters of aluminum reduction cell 图2 420 kA电解质......
in drained aluminum reduction cell LI Xiang-peng1, 2, LI Jie2, LAI Yan-qing2, LIU Ye-xiang2, RAN Yong-hua3, ZHOU Hao1, CEN Ke-fa1 (1. State Key Laboratory of Clean Energy Utilization, Zhejiang University... coupled simulations of two types of drained aluminum reduction cells, i.e. scenario Ⅰ is with central sump and two accessorial sumps at the ends of the cell; scenario Ⅱ is with only a central sump......
reduction cell, which can reflect the state of mass and energy transfer in a cell to a great extent[1]. Modern aluminum electrolyte is a complex system composed basically of molten cryolite and alumina, in which the cryolite acts as the flux for alumina and the alumina is the raw material for aluminum reduction. In addition, certain additives, such as, CaF2, MgF2 and LiF, are normally fed into a cell......
