Qualitative and quantitative insights into multiphase flow in ceramic sponges using X-ray computed tomography

Journal article


Publication Details

Author(s): Wallenstein M, Hafen N, Heinzmann H, Schug S, Arlt W, Kind M, Dietrich B
Journal: Chemical Engineering Science
Publisher: Elsevier
Publication year: 2015
Volume: 138
Pages range: 118-127
ISSN: 0009-2509


Abstract


Hydrodynamic parameters of ceramic sponges as column internals are investigated using X-ray computed tomography. New qualitative and quantitative insights into multiphase flow in ceramic sponges are gained and a phenomenological study is performed to investigate the flow paths, the hold-up and the effective gas-liquid interfacial area of the trickling liquid inside the sponge packing. The formation of rivulets inside the sponge packing and a redistribution of the liquid at intersections are detected. Additionally, it was observed that the liquid paths inside the sponge start to fluctuate with a higher superficial liquid velocity. A specially designed data processing routine is developed. In the experiments, the test column is operated in co-current (downwards) as well as countercurrent mode with an air-water system. The results are compared to literature data to evaluate the accuracy. The sponges investigated are varied in material, porosity and cell density to obtain knowledge concerning dependencies. The cell density and the superficial liquid velocity turned out to be the significant parameters for the hold-up and the effective gas-liquid interfacial area. (C) 2015 Elsevier Ltd. All rights reserved.



FAU Authors / FAU Editors

Arlt, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Thermische Verfahrenstechnik
Schug, Sebastian
Lehrstuhl für Thermische Verfahrenstechnik


External institutions
Karlsruhe Institute of Technology (KIT)


How to cite

APA:
Wallenstein, M., Hafen, N., Heinzmann, H., Schug, S., Arlt, W., Kind, M., & Dietrich, B. (2015). Qualitative and quantitative insights into multiphase flow in ceramic sponges using X-ray computed tomography. Chemical Engineering Science, 138, 118-127. https://dx.doi.org/10.1016/j.ces.2015.08.015

MLA:
Wallenstein, M., et al. "Qualitative and quantitative insights into multiphase flow in ceramic sponges using X-ray computed tomography." Chemical Engineering Science 138 (2015): 118-127.

BibTeX: 

Last updated on 2018-22-07 at 13:23