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

Jinsheng Lv, Junrui Shi, Mingming Mao and Fang He
Additional contact information
Jinsheng Lv: School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China
Junrui Shi: School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China
Mingming Mao: School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China
Fang He: School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China

Energies, 2021, vol. 14, issue 21, 1-12

Abstract: 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.

Keywords: pore-scale simulation; non-equilibrium; premixed combustion; porous media (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/21/6939/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/21/6939/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:21:p:6939-:d:662060

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().