A nonlinear elasto-plastic bond model for the discrete element modeling of woody biomass particles

Guo, Yuan; Chen, Qiushi; Xia, Yidong; Klinger, Jordan; Thompson, Vicki S.

doi:10.1016/j.powtec.2021.03.008

Cited by 22 publications

(6 citation statements)

References 44 publications

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“…DEM has often proved to efficiently compute the behavior of granular media, through a large panel of applications in many different domains. [30][31][32][33][34] To the authors knowledge, Liu et al (2011) 35 were the first to use DEM in a battery study, simulating the microstructure of a porous composite electrode during a sintering process. They demonstrated that the introduction of pore formers had a positive effect on the ions diffusion.…”

Section: Simentioning

confidence: 99%

Breathing of a Silicon-Based Anode: Mechanical Discrete Approach Using DEM

Boivin,

Mathieu,

Porcher

et al. 2024

J. Electrochem. Soc.

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Silicon is one of the most considered solutions to improve lithium-ion battery technology. Nevertheless, silicon shows a huge expansion, leading to a significant “breathing” of electrodes during cycling, i.e. a succession of swelling and shrinking. Irreversible volume changes are observed and conjectured to be related to microstructure changes. However, current publications addressing the modelling aspects mainly use analytical or continuous models. Thus, this study aims to apply discrete element method (DEM), a granular dynamics numerical tool, on a silicon-based anode in order to consider the complex internal microstructure and the associated micro-mechanics. In particular, a sample of anode was created using the DEM software LIGGGHTS and simplified linear breathing laws of particles were implemented. The global approach follows successive sensitivity analysis of granular/contact parameters to evaluate individually their capacity to reproduce more finely the observed breathing behaviour. So far, it is found that the breathing amplitude is mostly influenced by the silicon fraction and the breathing irreversibility by particles stickiness. The rigidity of particles also had a decreasing influence on swelling amplitude, but only for low values, far from practical ones, and the silicon content within the anode presented a linear influence on the swelling amplitude.

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Section: Simentioning

confidence: 99%

Breathing of a Silicon-Based Anode: Mechanical Discrete Approach Using DEM

Boivin,

Mathieu,

Porcher

et al. 2024

J. Electrochem. Soc.

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“…Both the discrete element method (DEM) and the finite element method (FEM) are effective numerical tools to simulate the flow behavior of milled woody biomass. ,,, DEM is preferred to investigate the particle–particle interaction and is capable of modeling discontinuous flow systems, − while FEM performs better on the parameterization of materials and can efficiently decipher the flow physics at large-scale systems. ,, This study used FEM to simulate the flow and arching behavior of woody biomass in wedge-shaped hoppers at an equipment scale. To circumvent the mesh entangling difficulties involved in the hopper FEM flow modeling with a large deformation, the coupled Eulerian–Lagrangian (CEL) scheme was utilized.…”

Section: Methodsmentioning

confidence: 99%

Wedge-Shaped Hopper Design for Milled Woody Biomass Flow

Jin

Saha

et al. 2022

ACS Sustainable Chem. Eng.

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The bioenergy industry has been challenged by unstable flow and transport of milled biomass in material handling operations. Handling issues such as hopper clogging and auger jamming are attributed to knowledge gaps between existing handling units designed for bulk solids and their suitability for milled biomass with high compressibility. This work investigates various flow behaviors of granular woody biomass in wedge-shaped hoppers. Hopper flow physical experiments and numerical simulations are conducted to study the influence of the critical material attributes and critical processing parameters on the flow pattern, arching, and throughput. The results show that (1) the preferred flow pattern, mass flow, can be achieved by controlling the material's internal friction angle, hopper inclination, and hopper wall friction; (2) hopper arching, governed by the competing gravity-driven force against flow resistance from material internal friction and material− wall friction, can be controlled by the hopper wall friction angle and the inclination angle; and (3) flow throughput can be accurately estimated from our empirical equation with inputs of hopper outlet geometry and particle-scale to bulk-scale material attributes. This study elucidates woody biomass flow physics and provides guidance for industrial equipment design.

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“…Sphero-cylindrical and shell particles were utilized to model the fiber-like and thin chip-like biomass fragments, but the model requires careful calibrations with physical experiments [2]. Bonded-sphere particles were used to simulate the flow of switchgrass and fracturing of pine wood [3], [4]. Moreover, hysteretic nonlinear contact models have been developed to capture the historydependent compressive behavior and the large compressibility of pine chips [5], [6].…”

Section: Rheological Modeling Of Granular Materialsmentioning

confidence: 99%

Application of fluid rheology models for milled woody biomass and non-recyclable municipal solid waste particles

Ikbarieh,

Lu,

Zhao

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Biofuels from biomass and non-recyclable municipal solid waste (N-MSW) can potentially replace aviation fossil fuels. However, the cost-effectiveness is impeded by feedstock handling issues, such as unstable flow or jamming in hoppers and feeders. This issue can be solved mainly based on enhanced understanding of the rheology of biomass and N-MSW particles, which remains poorly understood. Leveraging discrete and continuum-based granular rheology models, in this study, we conduct industry-scale hopper flow testing of milled woody biomass, paper, cardboard, foam, thin film, and plastic particles, and investigate the potential of using fluid rheology models to characterize the hopper flow behavior. The hopper flow tests demonstrate different flow behaviors of tested materials, including fast flow, stable-to-unstable flow, and varying flow rates. Numerical simulation of hopper flow tests utilizing the Gudehus-Bauer hypoplastic model demonstrates good agreement with experimental data for the biomass and rigid plastic particles, and those using non-Newtonian fluid models exhibit promising agreement with experimental data with low computational cost. However, new fluid rheological models are required to capture the unstable and varying rate flows of highly compressible particles such as paper and foam. This study advances the knowledge on the rheology of particulate biomass and N-MSW materials for biofuel production.

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A nonlinear elasto-plastic bond model for the discrete element modeling of woody biomass particles

Cited by 22 publications

References 44 publications

Breathing of a Silicon-Based Anode: Mechanical Discrete Approach Using DEM

Breathing of a Silicon-Based Anode: Mechanical Discrete Approach Using DEM

Wedge-Shaped Hopper Design for Milled Woody Biomass Flow

Application of fluid rheology models for milled woody biomass and non-recyclable municipal solid waste particles

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