Forest Chip Drying in Self-Heating Piles During Storage as Affected by Temperature and Relative Humidity Conditions

Ahmadinia, Saleh; Palviainen, Marjo; Kiuru, Petri; Routa, Johanna; Sikanen, Lauri; Urzainki, Iñaki; Laurén, Ari

doi:10.2139/ssrn.4051327

Cited by 1 publication

(2 citation statements)

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“…Guo et al [20] proposed the nonequilibrium extrapolation method, which is suitable for the hydrodynamic boundary conditions of channel domain boundaries and fluidsolid surfaces. The concentration distribution function is obtained from the following formula: (13) The critical issue is determining the boundary concentration C ω . The entrance C ω is known.…”

Section: Mathematical Formula For Adsorption Processmentioning

confidence: 99%

“…At the same time, much effort has been devoted to using computational fluid dynamics methods to evaluate the gas-solid adsorption process inside the porous media [13]. Compared with the traditional hydrodynamics methods, the lattice Boltzmann method (LBM), which has developed rapidly in recent years, has unique advantages in dealing with complex boundaries in porous media, so it has been widely used in the simulation of the transmission process in porous media [14].…”

Section: Introductionmentioning

confidence: 99%

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Lattice Boltzmann simulation of dynamic oxygen adsorption in coal based on fractal characteristics

Guo

Zhou

et al. 2023

THERM SCI

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The issue of coal spontaneous combustion greatly threatens the production safety of coal mining, storage, and transportation. It is significant to study oxygen adsorption to understand the mechanism of coal spontaneous combustion. In this paper, based on the fractal dimension of coal and the self-similar fractal geometry, the internal pore structure of coal is modeled. Then, the lattice Boltzmann method is employed to conduct the numerical simulation of oxygen adsorption in coal. Compared with the existing experimental data and numerical simulation, the lattice Boltzmann method is verified to be correct. The numerical results indicate that in the process of oxygen adsorption in coal, the preferential flow occurs when the large pores connect to the channel. In the meantime, the large diffusion coefficient leads to an early time for adsorption equilibrium. The oxygen adsorption increases with an increased adsorption rate constant. Pore structure plays a significant role in the adsorption behavior of oxygen in coal. The results can provide theoretical support for reducing coal spontaneous combustion and ensuring coal mine safety in production.

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Section: Mathematical Formula For Adsorption Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%