کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8067158 | 1521083 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reactor design strategy to support spectral variability within a sodium-cooled fast spectrum materials testing reactor
ترجمه فارسی عنوان
استراتژی طراحی راکتور برای حمایت از تنوع طیفی در یک رآکتور آزمایش تست سریع مواد سدیم سرد
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کلمات کلیدی
راکتور سریع سدیم، طیف نوترون، تست مواد، راکتور تست چند منظوره
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
A concept of a sodium cooled fast spectrum materials testing reactor is presented as one of the potential design configurations to achieve the performance versatility with respect to supporting a range of testing environments from current thermal-spectrum LWRs to Generation IV advanced fast-spectrum reactors. The objective is accomplished by designing a core with region-wise varying neutron spectra. This paper presents the design details and explores spectral variability examining feasibility to maintain thermal and fast energy spectra in the system. The core assemblies are designed using the EBR-II assembly as a prototype while implementing certain design modifications to meet performance needs. The fuel is 19.9%-enriched U-10Zr. Compare to EBR-II, the proposed core has larger pins, a taller active core, and thick reflector instead of depleted uranium breeding blankets. The MgO pins are analyzed as the reflector material to meet the needed versatility requirements. The design effort successfully concluded yielding a feasible 600â¯MWth-configuration with sufficient neutron fluxes in material testing locations. A fast flux greater than 5.6E15â¯n/cm2-s is maintained over the core lifetime in the central irradiation position. The volume of 63,000â¯cm3 with a fast flux ofâ¯â¼â¯4.2E15â¯n/cm2-s or greater is provided for materials irradiation options. The core has regions of high magnitude thermal flux in a large graphite region at the core periphery. Spectral variability, design choices and reactor physics characteristics are discussed to demonstrate the concept viability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Nuclear Energy - Volume 113, March 2018, Pages 15-24
Journal: Annals of Nuclear Energy - Volume 113, March 2018, Pages 15-24
نویسندگان
Jonathan Scherr, Pavel Tsvetkov,