Rieks, Sebastian ; Wende, Marc ; Preußer, Niklas ; Gambaryan-Roisman, Tatiana ; Kenig, Eugeny Y. (2019)
A hydrodynamic analogy based modelling approach for zero-gravity distillation with metal foams.
In: Chemical Engineering Research and Design, 147
doi: 10.1016/j.cherd.2019.05.022
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Zero-gravity distillation (ZGD) is one of the few ways to establish a small-scale distillation process. In contrast to conventional distillation columns, capillary forces, e.g. induced by metal foams, are exploited to ensure liquid flow in ZGD units. In order to strengthen the knowledge basis necessary for the ZGD equipment design, understanding of the relevant transport phenomena is necessary. In this work, a model for the description of ZGD processes was developed. It includes momentum, heat and species transport in both liquid and vapour phases. Evaporation and condensation influence on momentum transfer is captured in a simplified manner, allowing an approximate local flow velocity determination. The developed model was implemented in the OpenFOAM® software and used to numerically simulate methanol/ethanol distillation processes in 2D approximation. In particular, the model was applied to investigate the influence of the metal foam porosity and thickness as well as the length of the foam-free compartment on the velocity, temperature and mass fraction distributions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Rieks, Sebastian ; Wende, Marc ; Preußer, Niklas ; Gambaryan-Roisman, Tatiana ; Kenig, Eugeny Y. |
| Art des Eintrags: | Bibliographie |
| Titel: | A hydrodynamic analogy based modelling approach for zero-gravity distillation with metal foams |
| Sprache: | Englisch |
| Publikationsjahr: | Juli 2019 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Chemical Engineering Research and Design |
| Jahrgang/Volume einer Zeitschrift: | 147 |
| DOI: | 10.1016/j.cherd.2019.05.022 |
| URL / URN: | http://www.sciencedirect.com/science/article/pii/S0263876219... |
| Kurzbeschreibung (Abstract): | Zero-gravity distillation (ZGD) is one of the few ways to establish a small-scale distillation process. In contrast to conventional distillation columns, capillary forces, e.g. induced by metal foams, are exploited to ensure liquid flow in ZGD units. In order to strengthen the knowledge basis necessary for the ZGD equipment design, understanding of the relevant transport phenomena is necessary. In this work, a model for the description of ZGD processes was developed. It includes momentum, heat and species transport in both liquid and vapour phases. Evaporation and condensation influence on momentum transfer is captured in a simplified manner, allowing an approximate local flow velocity determination. The developed model was implemented in the OpenFOAM® software and used to numerically simulate methanol/ethanol distillation processes in 2D approximation. In particular, the model was applied to investigate the influence of the metal foam porosity and thickness as well as the length of the foam-free compartment on the velocity, temperature and mass fraction distributions. |
| Freie Schlagworte: | Zero-gravity distillation, Metal foams, Hydrodynamic analogy, Coupled transport phenomena |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) > Grenzflächentransport & komplexe Benetzung Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces |
| Hinterlegungsdatum: | 05 Aug 2019 08:45 |
| Letzte Änderung: | 07 Aug 2019 13:30 |
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