Thermo-structural Analysis on First Walls Cooling Channel of DEMO Blanket Cooled by Supercritical Water
Design of the cooling channel of DEMO blanket is challenging and requires an effective heat transfer from first walls, to maintain the material integrity up to the maximum heat flux. This paper presents the thermo-mechanical performance of first walls with two different cooling schemes and different shapes and dimensions of cross section of cooling channel. In this study, a coupled code ANSYS CFX/SIMULATION is used to calculate the temperature and thermal stress distribution in structural material. ANSYS CFX serves as the computational fluid dynamics (CFD) tool and SIMULATION as the computational structural mechanics (CSM) tool. Supercritical water is selected as the coolant of blanket. The temperature and thermal stress distributions are analyzed. Based on two criteria, I.e. Maximum temperature and maximum stress, the thermo-mechanical performance is analyzed of first walls with different shapes of cross section of cooling channel. The influence that different shapes of cross section have on temperature and thermal stress distribution in first walls are found out.
Fusion reactor DEMO blanket first wall thermo-structural analysis supercritical water
Chenxiao NI Po HU Xu CHENG
School of Nuclear Science and Engineering, Shanghai Jiao Tong University 800 Dongchuan Road, Shanghai 200240, China
国际会议
上海
英文
270-280
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）