Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware
For the last few decades, Circulating Fluidized Bed Combustion (CFBC) technology is being used to burn biomass waste while meeting stringent emission requirements for con trol of SO 2 and NO x emission. However, complex flow patterns are encountered when heat, mass and momentum heat transfer are...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Malaysian Society of Analytical Sciences
2005
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| Online Access: | http://eprints.utm.my/435/1/HussainAhmad2005_TurbulenceModelingInTheRiserOfACirculatingFluidized.pdf |
| _version_ | 1796853085048406016 |
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| author | Hussain, Ahmad Nasir Ani, Farid Darus, Amer Nordin Ahmad, Zainal Mustafa, Azeman |
| author_facet | Hussain, Ahmad Nasir Ani, Farid Darus, Amer Nordin Ahmad, Zainal Mustafa, Azeman |
| author_sort | Hussain, Ahmad |
| collection | ePrints |
| description | For the last few decades, Circulating Fluidized Bed Combustion (CFBC) technology is being used to burn biomass waste while meeting stringent emission requirements for con trol of SO 2 and NO x emission. However, complex flow patterns are encountered when heat, mass and momentum heat transfer are interlinked which in turn controls the SO 2 and NO x emissions. 2D simulations were done using FLUENT Ver. 6.1, a CFD pack age by Fluent Inc. Sand particle sand air were used as fluidizing materials. The results discuss the turbulent flow behaviour using k-e turbulence model. The simulations show that velocity profiles along the riser height are influenced by the exit geom etry. The riser exits clearly showed the regions of flow separation and reattachment. The increased turbulence was also reported in riser exits and connector, which in turn yields lower SO 2 and NO x emissions. |
| first_indexed | 2024-03-05T17:54:22Z |
| format | Article |
| id | utm.eprints-435 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T17:54:22Z |
| publishDate | 2005 |
| publisher | Malaysian Society of Analytical Sciences |
| record_format | dspace |
| spelling | utm.eprints-4352017-10-24T09:15:16Z http://eprints.utm.my/435/ Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware Hussain, Ahmad Nasir Ani, Farid Darus, Amer Nordin Ahmad, Zainal Mustafa, Azeman TJ Mechanical engineering and machinery TP Chemical technology For the last few decades, Circulating Fluidized Bed Combustion (CFBC) technology is being used to burn biomass waste while meeting stringent emission requirements for con trol of SO 2 and NO x emission. However, complex flow patterns are encountered when heat, mass and momentum heat transfer are interlinked which in turn controls the SO 2 and NO x emissions. 2D simulations were done using FLUENT Ver. 6.1, a CFD pack age by Fluent Inc. Sand particle sand air were used as fluidizing materials. The results discuss the turbulent flow behaviour using k-e turbulence model. The simulations show that velocity profiles along the riser height are influenced by the exit geom etry. The riser exits clearly showed the regions of flow separation and reattachment. The increased turbulence was also reported in riser exits and connector, which in turn yields lower SO 2 and NO x emissions. Malaysian Society of Analytical Sciences 2005 Article PeerReviewed application/pdf en http://eprints.utm.my/435/1/HussainAhmad2005_TurbulenceModelingInTheRiserOfACirculatingFluidized.pdf Hussain, Ahmad and Nasir Ani, Farid and Darus, Amer Nordin and Ahmad, Zainal and Mustafa, Azeman (2005) Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware. The Malaysian Journal of Analytical Sciences, 9 (3). pp. 418-425. ISSN 1394-2506 http://www.ukm.my/mjas/ |
| spellingShingle | TJ Mechanical engineering and machinery TP Chemical technology Hussain, Ahmad Nasir Ani, Farid Darus, Amer Nordin Ahmad, Zainal Mustafa, Azeman Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware |
| title | Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware |
| title_full | Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware |
| title_fullStr | Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware |
| title_full_unstemmed | Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware |
| title_short | Turbulence modeling in the riser of a circulating fluidized bed using CFD sottware |
| title_sort | turbulence modeling in the riser of a circulating fluidized bed using cfd sottware |
| topic | TJ Mechanical engineering and machinery TP Chemical technology |
| url | http://eprints.utm.my/435/1/HussainAhmad2005_TurbulenceModelingInTheRiserOfACirculatingFluidized.pdf |
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