Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational Study
In multi-solid, particle-size fluidized bed reactor systems, segregation is commonly observed. When segregation occurred, small solid particles were entrained to the top of the bed and escaped from the reactor. During the combustion process, the small solid particles that escaped from the boiler wer...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | ChemEngineering |
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| Online Access: | https://www.mdpi.com/2305-7084/8/1/7 |
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| author | Suchart Kreesaeng Benjapon Chalermsinsuwan Pornpote Piumsomboon |
| author_facet | Suchart Kreesaeng Benjapon Chalermsinsuwan Pornpote Piumsomboon |
| author_sort | Suchart Kreesaeng |
| collection | DOAJ |
| description | In multi-solid, particle-size fluidized bed reactor systems, segregation is commonly observed. When segregation occurred, small solid particles were entrained to the top of the bed and escaped from the reactor. During the combustion process, the small solid particles that escaped from the boiler were burned and subjected to damage around the cyclone separator. This study then employed a computational fluid dynamics approach to investigate solid particle behavior in the reactor using three different sizes of solid particles. The effects of baffle insertion, baffle angle, stage number, and its arrangement were examined. The percentage of segregation was calculated to compare behavior among different reactor systems. The insertion of 45-degree baffles resulted in reduced segregation behavior compared to cases without baffles and with 90-degree baffles, attributed to solid hindering and collision phenomena. Additionally, a double-stage baffle with any arrangement could reduce segregation behavior. The best arrangement was “above-arrangement” due to particles hindering, swirling, and accumulating between the baffle stages. Therefore, to diminish segregation behavior and enhance combustion chemical reactions, the insertion of baffles in the reactor zone is recommended. |
| first_indexed | 2024-03-07T22:38:13Z |
| format | Article |
| id | doaj.art-efa133f0b1604d6ab7bf8e5b5a9fae8a |
| institution | Directory Open Access Journal |
| issn | 2305-7084 |
| language | English |
| last_indexed | 2024-03-07T22:38:13Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ChemEngineering |
| spelling | doaj.art-efa133f0b1604d6ab7bf8e5b5a9fae8a2024-02-23T15:12:02ZengMDPI AGChemEngineering2305-70842024-01-0181710.3390/chemengineering8010007Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational StudySuchart Kreesaeng0Benjapon Chalermsinsuwan1Pornpote Piumsomboon2Fuels Research Center, Department of Chemical Technology, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Wangmai, Patumwan, Bangkok 10330, ThailandFuels Research Center, Department of Chemical Technology, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Wangmai, Patumwan, Bangkok 10330, ThailandFuels Research Center, Department of Chemical Technology, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Wangmai, Patumwan, Bangkok 10330, ThailandIn multi-solid, particle-size fluidized bed reactor systems, segregation is commonly observed. When segregation occurred, small solid particles were entrained to the top of the bed and escaped from the reactor. During the combustion process, the small solid particles that escaped from the boiler were burned and subjected to damage around the cyclone separator. This study then employed a computational fluid dynamics approach to investigate solid particle behavior in the reactor using three different sizes of solid particles. The effects of baffle insertion, baffle angle, stage number, and its arrangement were examined. The percentage of segregation was calculated to compare behavior among different reactor systems. The insertion of 45-degree baffles resulted in reduced segregation behavior compared to cases without baffles and with 90-degree baffles, attributed to solid hindering and collision phenomena. Additionally, a double-stage baffle with any arrangement could reduce segregation behavior. The best arrangement was “above-arrangement” due to particles hindering, swirling, and accumulating between the baffle stages. Therefore, to diminish segregation behavior and enhance combustion chemical reactions, the insertion of baffles in the reactor zone is recommended.https://www.mdpi.com/2305-7084/8/1/7computational fluid dynamicsfluidized bed reactorbaffle angle designsegregation behaviorpower plant combustionsimulation |
| spellingShingle | Suchart Kreesaeng Benjapon Chalermsinsuwan Pornpote Piumsomboon Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational Study ChemEngineering computational fluid dynamics fluidized bed reactor baffle angle design segregation behavior power plant combustion simulation |
| title | Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational Study |
| title_full | Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational Study |
| title_fullStr | Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational Study |
| title_full_unstemmed | Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational Study |
| title_short | Effect of Inserting Baffles on the Solid Particle Segregation Behavior in Fluidized Bed Reactor: A Computational Study |
| title_sort | effect of inserting baffles on the solid particle segregation behavior in fluidized bed reactor a computational study |
| topic | computational fluid dynamics fluidized bed reactor baffle angle design segregation behavior power plant combustion simulation |
| url | https://www.mdpi.com/2305-7084/8/1/7 |
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