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Article

Influence of Pressure, Velocity and Fluid Material on Heat Transport in Structured Open-Cell Foam Reactors Investigated Using CFD Simulations

1
Faculty of Production Engineering, Chemical Process Engineering Group, University of Bremen, Leobener Strasse 6, 28359 Bremen, Germany
2
MAPEX Center for Materials and Processes, University of Bremen, Postbox 330 440, 28334 Bremen, Germany
*
Author to whom correspondence should be addressed.
ChemEngineering 2020, 4(4), 61; https://doi.org/10.3390/chemengineering4040061
Received: 4 September 2020 / Revised: 13 October 2020 / Accepted: 2 November 2020 / Published: 14 November 2020
(This article belongs to the Special Issue Computational Fluid Dynamics (CFD) of Chemical Processes)
Structured open-cell foam reactors are promising for managing highly exothermic reactions such as CO2 methanation due to their excellent heat transport properties. Especially at low flow rates and under dynamic operation, foam-based reactors can be advantageous over classic fixed-bed reactors. To efficiently design the catalyst carriers, a thorough understanding of heat transport mechanisms is needed. So far, studies on heat transport in foams have mostly focused on the solid phase and used air at atmospheric pressure as fluid phase. With the aid of pore-scale 3d CFD simulations, we analyze the effect of the fluid properties on heat transport under conditions close to the CO2 methanation reaction for two different foam structures. The exothermicity is mimicked via volumetric uniformly distributed heat sources. We found for foams that are designed to be used as catalyst carriers that the working pressure range and the superficial velocity influence the dominant heat removal mechanism significantly. In contrast, the influence of fluid type and gravity on heat removal is small in the range relevant for heterogeneous catalysis. The findings might help to facilitate the design-process of open-cell foam reactors and to better understand heat transport mechanisms in foams. View Full-Text
Keywords: computational fluid dynamics (CFD); conjugate heat transfer; open-cell foams; structured reactors; volumetric heat sources; fluid properties; STAR-CCM+; dynamic operation computational fluid dynamics (CFD); conjugate heat transfer; open-cell foams; structured reactors; volumetric heat sources; fluid properties; STAR-CCM+; dynamic operation
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MDPI and ACS Style

Sinn, C.; Wentrup, J.; Thöming, J.; Pesch, G.R. Influence of Pressure, Velocity and Fluid Material on Heat Transport in Structured Open-Cell Foam Reactors Investigated Using CFD Simulations. ChemEngineering 2020, 4, 61. https://doi.org/10.3390/chemengineering4040061

AMA Style

Sinn C, Wentrup J, Thöming J, Pesch GR. Influence of Pressure, Velocity and Fluid Material on Heat Transport in Structured Open-Cell Foam Reactors Investigated Using CFD Simulations. ChemEngineering. 2020; 4(4):61. https://doi.org/10.3390/chemengineering4040061

Chicago/Turabian Style

Sinn, Christoph, Jonas Wentrup, Jorg Thöming, and Georg R. Pesch 2020. "Influence of Pressure, Velocity and Fluid Material on Heat Transport in Structured Open-Cell Foam Reactors Investigated Using CFD Simulations" ChemEngineering 4, no. 4: 61. https://doi.org/10.3390/chemengineering4040061

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