کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6744433 | 1429329 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Physics design study of the divertor power handling in 8Â m class DEMO reactor
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The divertor plasma performance and the power handling are studied for 8Â m class DEMO reactor with the fusion power of 1.5Â GW. Due to the high impurity radiation power (80% of the exhausted power), the full detachment at the inner target and the partial detachment at the outer target are obtained for a relatively low electron density of 1.8Â ÃÂ 1019Â mâ3 at the outer mid-plane separatrix. The SONIC simulation shows the target heat load less than 8Â MW/m2, which can be handled by the ITER-like divertor target, for both target. However, at the outer target, the ion temperature is still high which may cause the target erosion. For the divertor power handling and suppression of the target erosion, the divertor design study have to be further proceeded as well as the core plasma design. Dependence of the mid-plane separatrix density and the impurity concentration on the fuel gas puff is also studied. With increasing fuel gas puff rate, the mid-plane separatrix density increases and the Ar impurity concentration at the outer mid-plane decreases to 0.5%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 124, November 2017, Pages 352-355
Journal: Fusion Engineering and Design - Volume 124, November 2017, Pages 352-355
نویسندگان
Kazuo Hoshino, Nobuyuki Asakura, Shinsuke Tokunaga, Yuki Homma, Katsuhiro Shimizu, Yoshiteru Sakamoto, Kenji Tobita, Joint Special Design Team for Fusion DEMO Joint Special Design Team for Fusion DEMO,