Speaker
Kecheng Jiang
(Institute of Plasma Physics)
Description
The Water Cooled Ceramic Breeder blanket (WCCB) is being researched for Chinese Fusion Engineering Test Reactor (CFETR). From the security point of view, the thermal-hydraulic analysis is very essential because the blanket should remove the high heat flux radiated from the plasma and the volumetric heat generated by neutron wall loading. For the normal state of plasma burning, the jumped peak heat flux during the transient operation can occur. Besides, for the plasma transient disruption state, including the major disruption (MD), vertical displacement events (VDEs) and edge localized modes (ELMs), the unpredictable huge heat flux can be released. Both transient states will cause serious damage on the plasma facing components, especially the first wall. The temperature of tungsten and RAFM steel will probably exceed the allowable upper limits. In this paper, based on the detailed whole computational model of WCCB, the responses of three dimensional (3D) thermal-hydraulic to the two kinds of transient operation are analyzed by using Computational Fluid Dynamics (CFD) method. The fluctuation variation of temperature with time under different transient operations is obtained, contributing to evaluate the damage degree of materials. Furthermore, the comparison of temperature contour of effected zones along the radial direction under different duration time of peak heat flux has been made.
Keywords: WCCB, transient operation, thermal-hydraulic
Co-authors
Kai Huang
(Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, China)
Kecheng Jiang
(Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, China;University of Science and Technology of China, Hefei, Anhui, 230027, China)
Songlin Liu
(Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, China;University of Science and Technology of China, Hefei, Anhui, 230027, China)
Xiaoman Cheng
(Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, China)
Xuebin Ma
(Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031, China;University of Science and Technology of China, Hefei, Anhui, 230027, China)
