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In 2023, ALBRAS had a high numberAluminum of side tap outs. In November 2023 about 54% of the tap outs occurred during the anode changeAnode change resistance additionResistance addition period. With the objective to reduce the energy consumptionEnergy consumption and to prevent side tap outs, the extra power input after anode changeAnode change has been reduced by 60%, by reducing the added resistance after anode changeAnode change (level and duration of the addition). This optimization resulted in a reductionReduction of energy consumptionEnergy consumption, reduced ledge variationVariations, a lower voltageVoltage per cell, lower silicon content and zero side tap out during the anode changeAnode change resistance additionResistance addition period. This paper discusses the test development and the results of reduced anode changeAnode change resistance additionResistance addition.

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Anode Change Resistance Addition Optimization

  • 会议论文

  • 发表日期：

    2025年

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  • Melissa V. Grapp,
  • Camila R. Silva,
  • Valfredo C. Filho,
  • Michel V. Pena,
  • Pierre Reny

摘要

In 2023, ALBRAS had a high numberAluminum of side tap outs. In November 2023 about 54% of the tap outs occurred during the anode changeAnode change resistance additionResistance addition period. With the objective to reduce the energy consumptionEnergy consumption and to prevent side tap outs, the extra power input after anode changeAnode change has been reduced by 60%, by reducing the added resistance after anode changeAnode change (level and duration of the addition). This optimization resulted in a reductionReduction of energy consumptionEnergy consumption, reduced ledge variationVariations, a lower voltageVoltage per cell, lower silicon content and zero side tap out during the anode changeAnode change resistance additionResistance addition period. This paper discusses the test development and the results of reduced anode changeAnode change resistance additionResistance addition.