Novel index for evaluating continuous mixing process with pulse injection of bimodal tracer particles

Park, Chanho; Lee, Kwanghee; Hong, Seokyoung; Lee, Jaewon; Cho, Seung‐Sik; Moon, Il

doi:10.1016/j.powtec.2019.07.033

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…This study defined the time at which the mixing reached a stable state as the mixing stabilization time. The mixing index, which is used to evaluate the degree of mixing, is diverse in publications. − Lacey index has been the most widely used mixing index. Therefore, this work adopted Lacey index to measure the mixing degree of the resin particles and the ceramic particles.…”

Section: Experiments Apparatus and Methodologymentioning

confidence: 99%

Dispersion Trajectory and Dynamics of Particles Injected from the Sidewall in the Gas–Solid Fluidized Bed

Yang

Huang

Sun

et al. 2020

Ind. Eng. Chem. Res.

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The dispersion trajectory and dynamics of particles injected from the sidewall were investigated in a pseudo-two-dimensional fluidized bed based on digital image analysis, and the effect of the injection position on the dispersion trajectory was revealed. Image analysis showed that the dispersion trajectory could be divided into two stages, including the initial dispersion stage and the bed dispersion stage, and the former one was affected by the injection position severely. As injected near the gas distributor (distributor zone), it showed the central-upward trajectory; when injected in the middle area, it was the sidewall-downward trajectory; while as injected near the bed height (splash zone), it demonstrated as the lateral-dispersion coupled sidewall-downward trajectory. As a result, the dispersion time was the smallest when injected near the gas distributor. Furthermore, the effect of the superficial gas velocity was also considered when particles were injected at different heights. When injected close to the gas distributor, the initial dispersion stage was negligible and the bed dispersion stage decreased with increasing superficial gas velocity. When injected far away from the gas distributor, duration times of both stages decreased with the superficial gas velocity increasing.

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Section: Experiments Apparatus and Methodologymentioning

confidence: 99%

Dispersion Trajectory and Dynamics of Particles Injected from the Sidewall in the Gas–Solid Fluidized Bed

Yang

Huang

Sun

et al. 2020

Ind. Eng. Chem. Res.

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show abstract

“…There are also some mixing indexes applying to special situations. For example, Park et al 35 introduced a novel index for evaluating the continuous mixing process with pulseinjected bimodal particles, which is defined by multiplying the variance among bimodal bin counts by the residence time distribution and integrating over time.…”

Section: Introductionmentioning

confidence: 99%

Discussion on the Construction Principle of New Mixing Indices and Application for Cubic Particle Mixing by SIPHPM

Zhang

Gui

Yang

et al. 2020

Ind. Eng. Chem. Res.

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This work discusses and proposes the construction principles of particle concentration-based mixing indices for a general particle system. The principles proposed herein follow the criteria and advantages of scalability, flexibility, reliability, applicability, and a wide range of applications. Following the current principles, a series of new mixing indices are proposed. The new mixing indices for a simple particle system and for the axial mixing cases of cubic particles in the tilted tumbler are calculated and verified by comparing them with classic mixing indices. As a demonstrative application, the mixing phenomenon of particles in a tilted tumbler are simulation by SIPHPM simulation and evaluated by the new mixing indices.

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Numerical investigation of the mixing process in a Twin Cam Mixer: Influence of triangular cam height-base ratio and eccentricity

Long

et al. 2021

Korean J. Chem. Eng.

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Novel index for evaluating continuous mixing process with pulse injection of bimodal tracer particles

Cited by 4 publications

References 25 publications

Dispersion Trajectory and Dynamics of Particles Injected from the Sidewall in the Gas–Solid Fluidized Bed

Dispersion Trajectory and Dynamics of Particles Injected from the Sidewall in the Gas–Solid Fluidized Bed

Discussion on the Construction Principle of New Mixing Indices and Application for Cubic Particle Mixing by SIPHPM

Numerical investigation of the mixing process in a Twin Cam Mixer: Influence of triangular cam height-base ratio and eccentricity

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