کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6744455 | 1429330 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Update of the cooling design of the ITER EC upper launcher
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
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چکیده انگلیسی
ITER will be equipped with four EC (Electron Cyclotron) upper launchers of 8Â MW microwave power each with the aim to counteract plasma instabilities during operation. The structural system of these launcher antennas will be installed into four upper ports of the ITER vacuum vessel. During operation the port plug structure will be heated by nuclear heating from neutrons and photons and thermal radiation from the plasma. Also stray radiation and power losses from the Microwave (MW) system can create local heating of the port plug structure. This is why the port plugs must be equipped with a powerful heat removal system based on cooling water circuits. Beside reliable dissipation of up to 600Â kW total heat applied to the port plug also good flow characteristics, adequate distribution of coolant in parallel branches and steady temperature gradients between interacting cooling water channels must be ensured by proper layout of the cooling system. This paper outlines an update of the cooling system according to design changes of the EC upper port plugs induced by the latest blanket geometry specifications. All relevant results of thermo-hydraulic analyses for different operation scenarios and fault conditions are presented as well as the thermo-mechanical behavior and manufacturing aspects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 123, November 2017, Pages 341-344
Journal: Fusion Engineering and Design - Volume 123, November 2017, Pages 341-344
نویسندگان
Peter Spaeh, Gaetano Aiello, Andreas Meier, Theo Scherer, Sabine Schreck, Dirk Strauss, Alessandro Vaccaro, Bastian Weinhorst,