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Calibration of the KIT test setup for the cooling tests of a gyrotron cavity full-size mock-up equipped with mini-channels

Stanculovic, Sebastian; Difonzo, Rosa; Allio, Andrea; Avramidis, Konstantinos A.; Brücker, Philip; Gantenbein, Gerd; Illy, Stefan; Jelonnek, John; Kalaria, Parth C.; Misko, Moritz; Rzesnicki, Tomasz; Savoldi, Laura

Abstract (englisch):

In high-power fusion gyrotrons, the maximum heat-load on the wall of the interaction section is in the order of 2 kW/cm2, which is the major limiting technological factor for output power and pulse-length of the tube. The ongoing gyrotron development demands a very effective cavity cooling system for optimum gyrotron operation. In this work, the experimental investigation of a mini-channel cavity cooling using a mock-up test set-up is described. The mock-up test set-up will be used to experimentally validate the predictive simulation results and verify the mini-channel cooling performance. It is crucial for validation of the mini-channel cooling properties to determine the amount of the heat load introduced in the cavity wall by an induction heater. In order to estimate that heat load, full 3D electromagnetic simulations have been performed using the CST Studio Suite® software. A suitable calibration factor for the load deposited in the mock-up inner wall is identified after numerical investigation by a 3D thermal model. Calorimetry measurements are performed and the experimental results are compared with the simulation results obtained with a 3D thermal-hydraulic model, using the commercial software STAR-CCM+. ... mehr

Postprint §
DOI: 10.5445/IR/1000135220
Veröffentlicht am 29.06.2022
DOI: 10.1016/j.fusengdes.2021.112744
Zitationen: 2
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochfrequenztechnik und Elektronik (IHE)
Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 11.2021
Sprache Englisch
Identifikator ISSN: 0920-3796
KITopen-ID: 1000135220
HGF-Programm 31.13.02 (POF IV, LK 01) Plasma Heating & Current Drive Systems
Erschienen in Fusion engineering and design
Verlag Elsevier
Band 172
Seiten Article no: 112744
Projektinformation EUROfusion_H2020 (EU, H2020, 633053)
Vorab online veröffentlicht am 28.06.2021
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