Improving the Understanding of Busbar Design and Cell MHD Performance
Improving the Understanding of Busbar Design and Cell MHD Performance
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DOI：
10.1007/978-3-319-51541-0_82
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
A. Arkhipov;A. Alzarooni;A. A. Jasmi-A.;V. Potocnik
中科院分区：
文献类型：
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作者：
A. Arkhipov;A. Alzarooni;A. A. Jasmi-A.;V. Potocnik
良好的母线设计对铝电解槽性能至关重要。母线设计影响电池磁流体动力学（MHD）稳定性，没有母线设计，难以实现高电流效率和低能耗，因为不稳定性提高了逆反应速率并使罐控制更加困难。母线设计和MHD稳定性的许多方面仍然是灰色区域，电池设计者没有充分的信心，因为MHD标准仍然是定性的。EGA开发了电池设计能力，包括母线设计。在过去的六年中，EGA为新的和改造的电解槽生产线开发了大约十种母线设计。在某些情况下，这些限制导致在实践中用于电池稳定性的次优母线设计。这些经验增强了我们对母线设计、MHD建模和测量的理解，我们在本文中分享了这些经验。讨论了母线温度、电流密度和垂直磁场分布的判据。
Good busbar design is of paramount importance for aluminium reduction cell performance. Busbar design impacts cell magnetohydrodynamic (MHD) stability, without which it is difficult to achieve high current efficiency and low energy consumption, since instabilities enhance the rate of back reaction and make pot control more difficult. Many aspects of busbar design and MHD stability are still grey areas where cell designers do not have full confidence because MHD criteria are still rather qualitative. EGA has developed cell design capabilities, including busbar design. During the last six years, EGA has developed about ten busbar designs for new and retrofit potlines. In some cases, the constraints led to sub-optimal busbar design for cell stability in practice. This experience enhanced our understanding of busbar design, MHD modelling and measurements, which we share in this paper. We also discuss criteria for busbar temperature, current density and vertical magnetic field distribution.