Exergy Balances and Entropy Generation Rates as the Mathematical Models Falsification Method Applied for Aluminium Electrolysis Processes

Archives of Metallurgy and Materials

Z. Kolenda¹  A. Hołda¹ 

[1] AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, FACULTY OF ENERGY AND FUELS, DEPARTMENT OF FUNDAMENTAL RESEARCH OF ENERGY ENGINEERING, AL. A. MICKIEWICZA 30, 30-059 KRAKÓW, POLAND

关键词: Keywords: energy;    entropy generation rate;    mathematical modeling;   

DOI  :  10.2478/amm-2013-0054

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

A new method of falsification of the mathematical model of the processes taking place inside the aluminium electrolysis cell has been proposed. The method is based on the comparison of the calculation results of the entropy generation rates obtained in theoretical way with the exergy losses estimated from global exergy balance equation. Following irreversible processes have been analyzed - electric current flow, diffusion at the cathode, heat and electric current flow through the anode and cathode, irreversible carbon combustion, heat transfer from electrolyser to the surroundings and convection inside the electrolyte. Exergy balance calculations have been based on the experimental results from industry. The proposed procedure shows good accuracy between mathematical model and experimental data.

【 授权许可】

Unknown