Preußer, Niklas ; Rieks, Sebastian ; Kenig, Eugeny Y. ; Stephan, Peter ; Gambaryan-Roisman, Tatiana (2018)
Transport Processes and Separation in Zero-Gravity Destillation.
In: IHTC 16 - International Heat Transfer Conference 16 Digital Libary, August 10-15, Beijing, China
doi: 10.1615/IHTC16.her.023300
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Zero-gravity distillation is a micro distillation process, in which the liquid flow is driven by capillary forces, similar to a heat pipe. In this study, the separation of ethanol-methanol mixtures in a zero-gravity distillation apparatus is investigated. Heat fluxes, temperature profiles and the fluid interface evolution are evaluated. The results show larger temperature differences between condenser and evaporator for a fluid mixture than for the pure fluids. For the investigated heat fluxes, the curvature change is dominated by gravitational forces. The curvature distribution is in good agreement with a numerical model. The results show that the process can be successfully used to separate an ethanol-methanol mixture despite the narrow vapour-liquid equilibrium of this fluid system. Under the conditions studied in this work, the separation efficiency of the process does not significantly depend on the heat flux.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Preußer, Niklas ; Rieks, Sebastian ; Kenig, Eugeny Y. ; Stephan, Peter ; Gambaryan-Roisman, Tatiana |
| Art des Eintrags: | Bibliographie |
| Titel: | Transport Processes and Separation in Zero-Gravity Destillation |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2018 |
| Ort: | Connecticut |
| Verlag: | Begellhouse |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | IHTC 16 - International Heat Transfer Conference 16 Digital Libary, August 10-15, Beijing, China |
| Veranstaltungsort: | Connecticut |
| DOI: | 10.1615/IHTC16.her.023300 |
| URL / URN: | http://dx.doi.org/10.1615/IHTC16.her.023300 |
| Kurzbeschreibung (Abstract): | Zero-gravity distillation is a micro distillation process, in which the liquid flow is driven by capillary forces, similar to a heat pipe. In this study, the separation of ethanol-methanol mixtures in a zero-gravity distillation apparatus is investigated. Heat fluxes, temperature profiles and the fluid interface evolution are evaluated. The results show larger temperature differences between condenser and evaporator for a fluid mixture than for the pure fluids. For the investigated heat fluxes, the curvature change is dominated by gravitational forces. The curvature distribution is in good agreement with a numerical model. The results show that the process can be successfully used to separate an ethanol-methanol mixture despite the narrow vapour-liquid equilibrium of this fluid system. Under the conditions studied in this work, the separation efficiency of the process does not significantly depend on the heat flux. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces |
| Hinterlegungsdatum: | 08 Jan 2019 08:53 |
| Letzte Änderung: | 07 Aug 2019 13:30 |
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