Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production
Copyright © 2019 ASME. Pulsating flame jets have been widely used in open-top carbon anode baking furnaces for aluminum electrolysis. Reducing energy consumption and pollutant emissions are still major challenges in baking (heat-treatment) carbon anode blocks. It is also of immense significance to b...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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ASME International
2022
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| Online Access: | https://hdl.handle.net/1721.1/138005.2 |
| _version_ | 1811090066551865344 |
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| author | Tajik, Abdul Raouf Shamim, Tariq Ghoniem, Ahmed F Abu Al-Rub, Rashid K. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Tajik, Abdul Raouf Shamim, Tariq Ghoniem, Ahmed F Abu Al-Rub, Rashid K. |
| author_sort | Tajik, Abdul Raouf |
| collection | MIT |
| description | Copyright © 2019 ASME. Pulsating flame jets have been widely used in open-top carbon anode baking furnaces for aluminum electrolysis. Reducing energy consumption and pollutant emissions are still major challenges in baking (heat-treatment) carbon anode blocks. It is also of immense significance to bake all the anodes uniformly irrespective of their position in the furnace. Baking homogeneity can be enhanced noticeably by optimizing anode baking operational, geometrical, and physical parameters. In the present study, CFD simulations are combined with a response surface methodology to investigate and optimize the effects of pulse pressure, pulse frequency, and mainstream inlet oxygen concentration and mainstream inlet temperature. Two-levels half fractional factorial design with a center point is employed. It is perceived that pulse combustion with short pulse time and high momentum results in significant enhancement of the anode baking furnace energy efficiency. The temperature homogeneity is also significantly improved. It is found that the oxygen concentration is statistically the most significant parameter on NOx and soot formations, followed by the fuel flow rate. For NOx formation, air inlet oxygen concentration has a strong interaction with pulse duration. Coupling CFD models with the response surface methodologies demonstrated great potential in multi-objective optimization of the anode baking process with enhanced energy efficiency and baking uniformity. |
| first_indexed | 2024-09-23T14:32:08Z |
| format | Article |
| id | mit-1721.1/138005.2 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:32:08Z |
| publishDate | 2022 |
| publisher | ASME International |
| record_format | dspace |
| spelling | mit-1721.1/138005.22022-01-07T17:30:38Z Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production Tajik, Abdul Raouf Shamim, Tariq Ghoniem, Ahmed F Abu Al-Rub, Rashid K. Massachusetts Institute of Technology. Department of Mechanical Engineering Copyright © 2019 ASME. Pulsating flame jets have been widely used in open-top carbon anode baking furnaces for aluminum electrolysis. Reducing energy consumption and pollutant emissions are still major challenges in baking (heat-treatment) carbon anode blocks. It is also of immense significance to bake all the anodes uniformly irrespective of their position in the furnace. Baking homogeneity can be enhanced noticeably by optimizing anode baking operational, geometrical, and physical parameters. In the present study, CFD simulations are combined with a response surface methodology to investigate and optimize the effects of pulse pressure, pulse frequency, and mainstream inlet oxygen concentration and mainstream inlet temperature. Two-levels half fractional factorial design with a center point is employed. It is perceived that pulse combustion with short pulse time and high momentum results in significant enhancement of the anode baking furnace energy efficiency. The temperature homogeneity is also significantly improved. It is found that the oxygen concentration is statistically the most significant parameter on NOx and soot formations, followed by the fuel flow rate. For NOx formation, air inlet oxygen concentration has a strong interaction with pulse duration. Coupling CFD models with the response surface methodologies demonstrated great potential in multi-objective optimization of the anode baking process with enhanced energy efficiency and baking uniformity. 2022-01-07T17:30:37Z 2021-11-09T18:10:13Z 2022-01-07T17:30:37Z 2019-11 2020-07-16T18:51:26Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/138005.2 Tajik, Abdul Raouf, Shamim, Tariq, Ghoniem, Ahmed F. and Abu Al-Rub, Rashid K. 2019. "Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production." ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), 8. en 10.1115/imece2019-10500 ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) 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. application/octet-stream ASME International ASME |
| spellingShingle | Tajik, Abdul Raouf Shamim, Tariq Ghoniem, Ahmed F Abu Al-Rub, Rashid K. Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production |
| title | Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production |
| title_full | Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production |
| title_fullStr | Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production |
| title_full_unstemmed | Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production |
| title_short | Optimizing Pulse Combustion Parameters in Carbon Anode Baking Furnaces for Aluminum Production |
| title_sort | optimizing pulse combustion parameters in carbon anode baking furnaces for aluminum production |
| url | https://hdl.handle.net/1721.1/138005.2 |
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