Numerical Simulation of Coal Briquetting Process Using Discrete Element Method

Ono, Yuya; Ramdzuanny, Mohammad; Matsushita, Yohsuke; Aoki, Hideyuki; Wada, Shohei; Shishido, Takahiro

doi:10.2355/isijinternational.isijint-2021-272

Cited by 2 publications

(2 citation statements)

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“…From the previous experimental data, 9) the density of the coal particles was 1 349 kg/m 3 , and the Young's modulus of the particles was set to 1 GPa based in the study by Yashima and Hashimoto. 20) According to Ono et al, 17) the Poisson's ratio, restitution coefficient, and friction coefficient of the coal particles were set to 0.3, 0.3, and 0.3, respectively. The Young's modulus of the piston, which was assumed to be made of stainless steel, was set to 197 GPa, and other parameters of the piston were the same as those of the coal particles.…”

Section: Numerical Conditionsmentioning

confidence: 99%

“…In a numerical analysis for a packed bed of coal, Ono et al 17) simulated the loading and unloading tests of a packed bed of coal particles in the briquetting process of coal and evaluated the changes in the structure inside the packed bed and the stress during compression. They showed that the friction force between the particles and container wall affected the distributions of the contact force and filling ratio.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of Swelling Behavior of Coal Particles

et al. 2022

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The swelling of a packed bed of coal during carbonization was numerically investigated. The coal particles were assumed to be spheres capable of swelling. When falling particles of the same size, the height of the packed bed was determined by the particle size, and during swelling of particles of the same size, the height of the packed bed was also determined by the particle size. However, the height of the packed bed with different particle sizes was lower than that of the packed bed with particles of the same size. This was owing to the densifying of the smaller particles between the larger particles. When the swelling ratio of the particles in the differently packed beds was 25%, no difference in dilatation was observed. By fitting the numerical solutions and previous experimental data, the difference in the swelling ratio between the smaller and larger particles was 16.8%.

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Section: Numerical Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%