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Article

Enhancing the Thermal Performance of Slender Packed Beds through Internal Heat Fins

1
Chair of Chemical and Process Engineering, Technische Universität Berlin, Ackerstr. 76, 13355 Berlin, Germany
2
Institute of Chemical and Electrochemical Process Engineering, Clausthal University of Technology, Leibnizstr. 17, 38678 Clausthal-Zellerfeld, Germany
*
Author to whom correspondence should be addressed.
Processes 2020, 8(12), 1528; https://doi.org/10.3390/pr8121528
Received: 7 October 2020 / Revised: 13 November 2020 / Accepted: 18 November 2020 / Published: 24 November 2020
(This article belongs to the Special Issue Process Intensification in Chemical Reaction Engineering)
Slender packed beds are widely used in the chemical and process industry for heterogeneous catalytic reactions in tube-bundle reactors. Under safety and reaction engineering aspects, good radial heat transfer is of outstanding importance. However, because of local wall effects, the radial heat transport in the vicinity of the reactor wall is hindered. Particle-resolved computational fluid dynamics (CFD) is used to investigate the impact of internal heat fins on the near wall radial heat transport in slender packed beds filled with spherical particles. The simulation results are validated against experimental measurements in terms of particle count and pressure drop. The simulation results show that internal heat fins increase the conductive portion of the radial heat transport close to the reactor wall, leading to an overall increased thermal performance of the system. In a wide flow range (100<Rep<1000), an increase of up to 35% in wall heat transfer coefficient and almost 90% in effective radial thermal conductivity is observed, respectively. View Full-Text
Keywords: packed bed reactor; heat transfer; pressure drop; process intensification; heat fins; computational fluid dynamics (CFD); Discrete Element Method (DEM) packed bed reactor; heat transfer; pressure drop; process intensification; heat fins; computational fluid dynamics (CFD); Discrete Element Method (DEM)
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MDPI and ACS Style

Jurtz, N.; Flaischlen, S.; Scherf, S.C.; Kraume, M.; Wehinger, G.D. Enhancing the Thermal Performance of Slender Packed Beds through Internal Heat Fins. Processes 2020, 8, 1528. https://doi.org/10.3390/pr8121528

AMA Style

Jurtz N, Flaischlen S, Scherf SC, Kraume M, Wehinger GD. Enhancing the Thermal Performance of Slender Packed Beds through Internal Heat Fins. Processes. 2020; 8(12):1528. https://doi.org/10.3390/pr8121528

Chicago/Turabian Style

Jurtz, Nico, Steffen Flaischlen, Sören C. Scherf, Matthias Kraume, and Gregor D. Wehinger 2020. "Enhancing the Thermal Performance of Slender Packed Beds through Internal Heat Fins" Processes 8, no. 12: 1528. https://doi.org/10.3390/pr8121528

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