Multiscale CFD modelling of syngas-based chemical looping combustion in a packed bed reactor with dynamic gas switching technology

Sandu, Vlad-Cristian; Cormos, Calin-Cristian; Cormos, Ana-Maria

doi:10.1016/j.jece.2023.111381

Journal of Environmental Chemical Engineering

2023

DOI: 10.1016/j.jece.2023.111381

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Multiscale CFD modelling of syngas-based chemical looping combustion in a packed bed reactor with dynamic gas switching technology

Vlad-Cristian Sandu,

Calin-Cristian Cormos,

Ana-Maria Cormos

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2024

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Cited by 3 publications

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A systematic approach to defining a unit cell for fluid dynamics in packed beds with low tube‐to‐particle diameter ratio

Dorantes‐Landa,

Hernandez‐Aguirre,

Ricardez‐Sandoval

et al. 2024

AIChE Journal

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This work develops an approach to identify the suitable representative volume (unit cell) that captures fluid dynamics in beds packed with spheres or cylinders with a dt/dp ≤ 10, by describing radial void fraction and velocity profiles at particle Reynolds numbers between 5 and 100. Rigid‐body simulations were used to construct synthetic packings, while velocity profiles were obtained from particle‐resolved simulations. This methodology, rooted in the similitude of fluid dynamics between beds of different lengths, determines the minimum length (or number of particles in a bed) required for the unit cell to accurately describe the void fraction and velocity profiles. Defining such a unit cell for fluid dynamics not only reduces computational effort but also opens avenues for its use in multiscale techniques to develop reliable pseudo‐continuous models, which is currently the bottleneck in the design and optimization of wall‐cooled packed‐bed reactors in industrial scenarios.

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A systematic approach to defining a unit cell for fluid dynamics in packed beds with low tube‐to‐particle diameter ratio

Dorantes‐Landa,

Hernandez‐Aguirre,

Ricardez‐Sandoval

et al. 2024

AIChE Journal

View full text Add to dashboard Cite

show abstract

Numerical design in a two-step joint design process of parallel packed bed reactors for CLC of MSW-generated syngas

Chen,

Zhao

2024

Chemical Engineering Journal

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Engineering design and numerical design for chemical looping combustion reactor: A review

Chen,

Li,

Tao

et al. 2024

Energy Reviews

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Multiscale CFD modelling of syngas-based chemical looping combustion in a packed bed reactor with dynamic gas switching technology

Cited by 3 publications

References 48 publications

A systematic approach to defining a unit cell for fluid dynamics in packed beds with low tube‐to‐particle diameter ratio

A systematic approach to defining a unit cell for fluid dynamics in packed beds with low tube‐to‐particle diameter ratio

Numerical design in a two-step joint design process of parallel packed bed reactors for CLC of MSW-generated syngas

Engineering design and numerical design for chemical looping combustion reactor: A review

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