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The Impact of Critical Operational Parameters on the Performance of the Aluminum Anode Baking Furnace
Name
jert_143_6_062103.pdf
Description
Published version
Size
1.19 MB
Format
Adobe PDF
Checksum (MD5)
c8258d78dbbf933c5066ede6214aeddd
Author(s)
Tajik, Abdul Raouf
Shamim, Tariq
Ghoniem, Ahmed F
Abu Al-Rub, Rashid K
Date Issued
2021
Journal
Journal of Energy Resources Technology
Publisher
ASME International
Citation
Tajik, Abdul Raouf, Shamim, Tariq, Ghoniem, Ahmed F and Abu Al-Rub, Rashid K. 2021. "The Impact of Critical Operational Parameters on the Performance of the Aluminum Anode Baking Furnace." Journal of Energy Resources Technology, 143 (6).
Version
Final published version
Abstract
©2020 by ASME. Minimizing energy consumption and reducing pollutant emissions during the carbon anode baking process are critically important for the aluminum industry. The present study investigates the effects of oxidizer inlet temperature, inlet oxygen concentration, equivalence ratio, refractory wall thermal conductivity, and refractory wall emissivity on the baking process using unsteady Reynolds-averaged Navier-Stokes (URANS)-based simulations in conjunction with the presumed probability density function method. Numerical results are combined with a response surface methodology (RSM) to optimize the anode baking process. The advantage of the coupled method is that it can adequately provide information on interactions of different input parameters. It is remarked that the significance level of the studied parameters varies drastically for different outputs. It is noted that diluting inlet oxygen concentration (from 23% in atmospheric air to 15%) at an elevated oxidizer temperature leads to enhanced furnace fuel efficiency, more uniform temperature distribution, and lower pollutant emissions. A linear model is detected to be adequate for response surface modeling of the anode baking furnace NOx formation. On the other hand, furnace soot formation is modeled with a higher-order model due to the quadratic behavior of the response.
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
10.1115/1.4048562
