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...

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Autores principales:	Jinsheng Lv, Junrui Shi, Mingming Mao, Fang He
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	pore-scale simulation non-equilibrium premixed combustion porous media Technology T
Acceso en línea:	https://doaj.org/article/9de7051e743c4da682a541d503528b6b
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spelling	oai:doaj.org-article:9de7051e743c4da682a541d503528b6b2021-11-11T15:46:06ZThree-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner10.3390/en142169391996-1073https://doaj.org/article/9de7051e743c4da682a541d503528b6b2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/6939https://doaj.org/toc/1996-1073Pore-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.Jinsheng LvJunrui ShiMingming MaoFang HeMDPI AGarticlepore-scale simulationnon-equilibriumpremixed combustionporous mediaTechnologyTENEnergies, Vol 14, Iss 6939, p 6939 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pore-scale simulation non-equilibrium premixed combustion porous media Technology T
spellingShingle	pore-scale simulation non-equilibrium premixed combustion porous media Technology T 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
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.
format	article
author	Jinsheng Lv Junrui Shi Mingming Mao Fang He
author_facet	Jinsheng Lv Junrui Shi Mingming Mao Fang He
author_sort	Jinsheng Lv
title	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_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_sort	three-dimensional pore-scale simulation of flow and thermal non-equilibrium for premixed gas combustion in a random packed bed burner
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9de7051e743c4da682a541d503528b6b
work_keys_str_mv	AT jinshenglv threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner AT junruishi threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner AT mingmingmao threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner AT fanghe threedimensionalporescalesimulationofflowandthermalnonequilibriumforpremixedgascombustioninarandompackedbedburner
_version_	1718434104919195648

Three-Dimensional Pore-Scale Simulation of Flow and Thermal Non-Equilibrium for Premixed Gas Combustion in a Random Packed Bed Burner

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