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http://dx.doi.org/10.18419/opus-14388
Autor(en): | Kathage, Yannick Vazquez Cortes, Alejandro Merli, Stefan Day, Christian Giegerich, Thomas Hanke, Stefan Igitkhanov, Juri Schulz, Andreas Walker, Matthias |
Titel: | Experimental progress in the development of a metal foil pump for DEMO |
Erscheinungsdatum: | 2023 |
Dokumentart: | Zeitschriftenartikel |
Seiten: | 714-734 |
Erschienen in: | Plasma 6 (2023), S. 714-734 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-144074 http://elib.uni-stuttgart.de/handle/11682/14407 http://dx.doi.org/10.18419/opus-14388 |
ISSN: | 2571-6182 |
Zusammenfassung: | Experimental findings to contribute to the preliminary design of a metal foil pump for fuel separation in the Direct Internal Recycling loop of the DEMO fusion device are presented. In parametric studies on a small-scale superpermeation experiment with a microwave plasma source and two different metal foil materials, niobium Nb and vanadium V, a substantial increase in permeation with plasma power and with a decrease in pressure was observed. To ease operation in the typical fusion environment, in-situ heating procedures were developed to recover from impurity contamination. The temperature independence of plasma-driven permeation from 600 to 900 °C metal foil temperature was demonstrated. No proof of an isotopic effect for plasma-driven permeation of protium and deuterium could be found. The highest repeatable permeation flux achieved was 6.7 Pa∙m3/(m2∙s) or ~5.5 × 10-3 mol H/(m2∙s). The found compression ratios do safely allow the operation of the metal foil pump using ejector pumps as backing stages for the permeate. In a dedicated experimental setup, the operation of the plasma source in a strong magnetic field was tested. Parametric studies of pressure, power input, magnetic flux density, field gradient and field angle are presented. |
Enthalten in den Sammlungen: | 04 Fakultät Energie-, Verfahrens- und Biotechnik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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plasma-06-00049.pdf | 13,05 MB | Adobe PDF | Öffnen/Anzeigen |
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