Coupled conjugate heat transfer and heat production in open-cell ceramic foams investigated using CFD

Sinn, Christoph; Pesch, Georg R.; Thöming, Jorg; Kiewidt, Lars

doi:10.1016/j.ijheatmasstransfer.2019.05.042

Cited by 36 publications

(34 citation statements)

References 43 publications

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“…The LB model used in the present work is the same as that employed in. 28 The DFs are calculated by solving the Lattice Boltzmann Equation (LBE), which is a special discretization of the kinetic Boltzmann equation. The two-phase Boltzmann’s equation for a suspended solid particle can be expressed as follows 29 where σ=1, 2 represent the base fluid and the suspended solid particles and τfσ is the relaxation time of component, respectively.…”

Section: Simulation Methodologymentioning

confidence: 99%

Numerical study of geometric parameters effects on the suspended solid particles in the oil transmission pipelines

Madani

Alinejad

Rostamiyan

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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The innovation of this paper is geometric parameters effects of the oil transmission pipelines on the suspended solid particles. This geometry has been simulated with the Lattice Boltzmann Method based on D2Q9 model for analyzing solid particle tracing, streamlines, solid particle volume fraction, and nondimensional velocity field of fluid flow. These parameters have been investigated in 9 cases of the oil transmission pipelines at two different intensity of fluid flow. The results signified that maximum and minimum ranges of fluid velocity at [Formula: see text] were in case 3 that the oil transmission pipelines with diameter of the pipeline and bending radius, D and 2D, respectively. Also, maximum volume fraction of solid particles at bending radius at [Formula: see text] was in case 3 with diameter of the pipeline and bending radius, D and 2D, respectively. Also, in case 9, solid particles in the oil transmission pipelines were almost symmetrical. Finally, with comparison between figures of solid particles tracing and volume fraction of solid particles, by increasing of the diameter of oil transmission pipelines, the sediment of solid particles was decreased, also, by increasing of the bending radius of oil transmission pipelines, the sediment of solid particles was increased.

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Section: Simulation Methodologymentioning

confidence: 99%

Numerical study of geometric parameters effects on the suspended solid particles in the oil transmission pipelines

Madani

Alinejad

Rostamiyan

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…The authors of the article [11], when numerically simulating the process of heat transfer in porous structures, used the specification of artificial heat sources, which are analogs of the heat of exothermic reaction. This approach made it possible to significantly reduce the computational resources required for calculating the chemical reactions.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Heat and Mass Transfer in an Open-Cell Foam Catalyst on Example of the Acetylene Hydrogenation Reaction

et al. 2022

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In the present work, based on numerical simulation, a comparative analysis of the flow of a chemically reacting gas flow through a catalyst is performed using the example of selective hydrogenation of acetylene in a wide range of flow temperatures variation. Catalyst models are based on open-cell foam material. A comparison is also made with calculations and experimental data for a granular catalyst. The porosity and cell diameter were chosen as variable parameters for the porous catalyst. The results of numerical studies were obtained in the form of component concentration fields of the gas mixture, vector fields of gas movement, values of conversion, and selectivity of the reaction under study. The parameters of the porous material of the catalyst are determined for the maximum efficiency of the process under study.

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“…Additionally, CFD allows to predict heat transfer and the outcome of reactions in chemical applications. This has made CFD useful for the description of the operation of larger industrial equipment as well as microscale reactors [3][4][5][6]. The advance in computational power during recent decades allowed to apply CFD to more complex reaction systems, such as (free radical) polymerization in non-ideal reactors.…”

Section: Introductionmentioning

confidence: 99%

Optimization of a 3D-printed tubular reactor for free radical polymerization by CFD

2021

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A flow reactor for the complex reaction network of the free radical solution polymerization of n-butyl acrylate was optimized by a combination of kinetic modeling, computational fluid dynamics (CFD) and additive manufacturing. CFD was used to model a flow reactor with SMX mixing elements. An optimized geometry was 3D-printed from polypropylene. The modeled residence time behavior was compared to relevant experiments, giving a validation for the flow behavior of the reactor. A kinetic model for the free radical solution polymerization of n-butyl acrylate (BA) was in addition implemented into the CFD model. It was used to predict the polymerization behavior in the flow reactor and the resulting product properties. The experimental and computational results were in acceptable agreement. Graphical abstract

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Coupled conjugate heat transfer and heat production in open-cell ceramic foams investigated using CFD

Cited by 36 publications

References 43 publications

Numerical study of geometric parameters effects on the suspended solid particles in the oil transmission pipelines

Numerical study of geometric parameters effects on the suspended solid particles in the oil transmission pipelines

Numerical Simulation of Heat and Mass Transfer in an Open-Cell Foam Catalyst on Example of the Acetylene Hydrogenation Reaction

Optimization of a 3D-printed tubular reactor for free radical polymerization by CFD

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