Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner
Pore-scale studies of premixed gas combustion in a packed bed is conducted to study the flow and thermal non-equilibrium phenomenon in packed bed. The 3D random packed bed is generated using the EDEM software and solid surface radiation is computed using Discrete Ordinates (DO) model. The simulation...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/21/6939 |
| _version_ | 1827678256263856128 |
|---|---|
| author | Jinsheng Lv Junrui Shi Mingming Mao Fang He |
| author_facet | Jinsheng Lv Junrui Shi Mingming Mao Fang He |
| author_sort | Jinsheng Lv |
| collection | DOAJ |
| description | Pore-scale studies of premixed gas combustion in a packed bed is conducted to study the flow and thermal non-equilibrium phenomenon in packed bed. The 3D random packed bed is generated using the EDEM software and solid surface radiation is computed using Discrete Ordinates (DO) model. The simulations are carried out using a commercial software package based on the finite volume method. It is shown that the local variation of species mass fraction, reaction rate et al. in pores near the flame front is significant, the radiation heat flux is transferred layer-by-layer. Cold flow simulation without reaction reveals that flow non-equilibrium is one of the essential characteristics of packing bed and increase in flow velocity leads to intensify non-equilibrium phenomenon. The distributions for content of axial velocity and gas temperature are wave-like shape in the burner and vary with time. |
| first_indexed | 2024-03-10T06:03:52Z |
| format | Article |
| id | doaj.art-9de7051e743c4da682a541d503528b6b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T06:03:52Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-9de7051e743c4da682a541d503528b6b2023-11-22T20:41:12ZengMDPI AGEnergies1996-10732021-10-011421693910.3390/en14216939Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed BurnerJinsheng Lv0Junrui Shi1Mingming Mao2Fang He3School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, ChinaPore-scale studies of premixed gas combustion in a packed bed is conducted to study the flow and thermal non-equilibrium phenomenon in packed bed. The 3D random packed bed is generated using the EDEM software and solid surface radiation is computed using Discrete Ordinates (DO) model. The simulations are carried out using a commercial software package based on the finite volume method. It is shown that the local variation of species mass fraction, reaction rate et al. in pores near the flame front is significant, the radiation heat flux is transferred layer-by-layer. Cold flow simulation without reaction reveals that flow non-equilibrium is one of the essential characteristics of packing bed and increase in flow velocity leads to intensify non-equilibrium phenomenon. The distributions for content of axial velocity and gas temperature are wave-like shape in the burner and vary with time.https://www.mdpi.com/1996-1073/14/21/6939pore-scale simulationnon-equilibriumpremixed combustionporous media |
| spellingShingle | Jinsheng Lv Junrui Shi Mingming Mao Fang He Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner Energies pore-scale simulation non-equilibrium premixed combustion porous media |
| title | Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner |
| title_full | Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner |
| title_fullStr | Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner |
| title_full_unstemmed | Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner |
| title_short | Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner |
| title_sort | three dimensional pore scale simulation of flow and thermal non equilibrium for premixed gas combustion in a random packed bed burner |
| topic | pore-scale simulation non-equilibrium premixed combustion porous media |
| url | https://www.mdpi.com/1996-1073/14/21/6939 |
| work_keys_str_mv | AT jinshenglv threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner AT junruishi threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner AT mingmingmao threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner AT fanghe threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner |