Effect of Current Transient Enhancement on Thermal Field of Aluminum Electrolysis Cell for the Accommodation of Wind Power
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To realize the idea of accommodating wind power nearby the aluminum plant and achieving a win–win situation in China, a great deal of basic research is still necessary. In this study, a transiently strongly coupled model of thermo-electric field was developed, in order to explore the dynamic characteristics of temperature distributions and heat dissipation in aluminum electrolysis cell under current enhancement. The results show that when the current is enhanced by no more than 10% within 2 h, the profile of the ledge varies little. The higher the current is, the faster the temperature of the bath rises and the more difficult it is to restore to the normal state (948.2 °C) in a short time (2 h). The heat dissipation rate of the upper part of cell change obviously compared to the other parts, but little in rising ratio. Therefore, four methods to adjust heat dissipation were modeled and the result shows it is effective to decrease the temperature to the normal state in a short time.
KeywordsAluminum electrolysis Wind power Accommodation Thermal field
This study was supported by the National Key Research and Development Program of China (2017YFC0210406), the National Science Foundation of China projects (51674300, 51574289, 61533020, and 61621062), and the Fundamental Research Funds for the Central Universities of Central South University (1053320170371).
Compliance with Ethical Standards
Conflict of interest
The authors declare that they have no conflict of interest.
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