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Development of advanced cavity cooling systems for a 170 GHz, 2 MW coaxial cavity gyrotron

Brücker, Philipp Thomas; Kalaria, Parth; Ruess, Sebastian; Avramidis, Konstantinos A.; Illy, Stefan; Gantenbein, Gerd; Thumm, Manfred; Weggen Jörg; Jelonnek, John

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, efficiency and pulse-length of the tube. The ongoing gyrotron development demands a very effective cavity cooling system for stable and optimum gyrotron operation. In this work, the thermal performance of a mini-channel cavity cooling is numerically investigated using the ANSYS Fluent® code-package. The influence of the various physical and operating parameters on the cavity cooling efficiency is systematically studied for a 170 GHz, 2 MW coaxial-cavity gyrotron and an optimized heat sink design is proposed. A mock-up test set-up is also developed to experimentally validate the simulation results.


Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Vortrag
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000095996
HGF-Programm 31.03.02 (POF III, LK 01) Plasma Heizsysteme
Veranstaltung 31st Joint Russian-German Meeting on ECRH and Gyrotrons (2019), Lenggries, Deutschland, 03.06.2019 – 08.06.2019
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