A Mathematical Model of Biomass Combustion Physical and Chemical Processes
The numerical simulation of biomass combustion requires a model that must contain, on one hand, sub-models for biomass conversion to primary products, which involves calculations for heat transfer, biomass decomposition rate, product fractions, chemical composition, and material properties, and on t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/23/6232 |
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| author | Florin Popescu Razvan Mahu Ion V. Ion Eugen Rusu |
| author_facet | Florin Popescu Razvan Mahu Ion V. Ion Eugen Rusu |
| author_sort | Florin Popescu |
| collection | DOAJ |
| description | The numerical simulation of biomass combustion requires a model that must contain, on one hand, sub-models for biomass conversion to primary products, which involves calculations for heat transfer, biomass decomposition rate, product fractions, chemical composition, and material properties, and on the other hand, sub-models for volatile products transport inside and outside of the biomass particle, their combustion, and the char reduction/oxidation. Creating such a complete mathematical model is particularly challenging; therefore, the present study proposes a versatile alternative—an originally formulated generalized 3D biomass decomposition model designed to be efficiently integrated with existing CFD technology. The biomass decomposition model provides the chemical composition and mixture fractions of volatile products and char at the cell level, while the heat transfer, species transport, and chemical reaction calculations are to be handled by the CFD software. The combustion model has two separate units: the static modeling that produces a macro function returning source/sink terms and local material properties, and the dynamic modeling that tightly couples the first unit output with the CFD environment independently of the initial biomass composition, using main component fractions as initial data. This article introduces the generalized 3D biomass decomposition model formulation and some aspects related to the CFD framework implementation, while the numerical modeling and testing shall be presented in a second article. |
| first_indexed | 2024-03-10T14:33:23Z |
| format | Article |
| id | doaj.art-cf933b71459e4b6db212fdd25b5ef0bf |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T14:33:23Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-cf933b71459e4b6db212fdd25b5ef0bf2023-11-20T22:27:14ZengMDPI AGEnergies1996-10732020-11-011323623210.3390/en13236232A Mathematical Model of Biomass Combustion Physical and Chemical ProcessesFlorin Popescu0Razvan Mahu1Ion V. Ion2Eugen Rusu3Faculty of Engineering, “Dunarea de Jos” University of Galati, 800008 Galat, RomaniaFaculty of Engineering, “Dunarea de Jos” University of Galati, 800008 Galat, RomaniaFaculty of Engineering, “Dunarea de Jos” University of Galati, 800008 Galat, RomaniaFaculty of Engineering, “Dunarea de Jos” University of Galati, 800008 Galat, RomaniaThe numerical simulation of biomass combustion requires a model that must contain, on one hand, sub-models for biomass conversion to primary products, which involves calculations for heat transfer, biomass decomposition rate, product fractions, chemical composition, and material properties, and on the other hand, sub-models for volatile products transport inside and outside of the biomass particle, their combustion, and the char reduction/oxidation. Creating such a complete mathematical model is particularly challenging; therefore, the present study proposes a versatile alternative—an originally formulated generalized 3D biomass decomposition model designed to be efficiently integrated with existing CFD technology. The biomass decomposition model provides the chemical composition and mixture fractions of volatile products and char at the cell level, while the heat transfer, species transport, and chemical reaction calculations are to be handled by the CFD software. The combustion model has two separate units: the static modeling that produces a macro function returning source/sink terms and local material properties, and the dynamic modeling that tightly couples the first unit output with the CFD environment independently of the initial biomass composition, using main component fractions as initial data. This article introduces the generalized 3D biomass decomposition model formulation and some aspects related to the CFD framework implementation, while the numerical modeling and testing shall be presented in a second article.https://www.mdpi.com/1996-1073/13/23/6232biomassthermochemical decompositioncombustionmathematical modelingnumerical simulationCFD |
| spellingShingle | Florin Popescu Razvan Mahu Ion V. Ion Eugen Rusu A Mathematical Model of Biomass Combustion Physical and Chemical Processes Energies biomass thermochemical decomposition combustion mathematical modeling numerical simulation CFD |
| title | A Mathematical Model of Biomass Combustion Physical and Chemical Processes |
| title_full | A Mathematical Model of Biomass Combustion Physical and Chemical Processes |
| title_fullStr | A Mathematical Model of Biomass Combustion Physical and Chemical Processes |
| title_full_unstemmed | A Mathematical Model of Biomass Combustion Physical and Chemical Processes |
| title_short | A Mathematical Model of Biomass Combustion Physical and Chemical Processes |
| title_sort | mathematical model of biomass combustion physical and chemical processes |
| topic | biomass thermochemical decomposition combustion mathematical modeling numerical simulation CFD |
| url | https://www.mdpi.com/1996-1073/13/23/6232 |
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