氦冷固态包层第一壁内插扭带强化换热研究  

Research on heat transfer enhancement by inserting twisted band in the first wall of the helium cooled ceramic breeder blanket

作　　者：杨宇翔 王紫荆 雷明准 YANG Yu-xiang;WANG Zi-jing;LEI Ming-zhun(Fusion Energy(Hefei)Engineering Design Institute Co.LTD,Hefei 230001;School of Engineering,Anhui Agricultural University,Hefei 230036;Institute of Plasma Physics,Chinese Academy of Science,Hefei 230031)

机构地区：[1]聚变能(合肥)工程设计院有限公司,合肥230001 [2]安徽农业大学工学院,合肥230036 [3]中国科学院等离子体物理研究所,合肥230031

出　　处：《核聚变与等离子体物理》2024年第3期312-317,共6页Nuclear Fusion and Plasma Physics

基　　金：国家重点研发计划项目(2017YFE0300503)。

摘　　要：针对氦冷固态包层第一壁换热能力不足,通过在第一壁冷却管道内插入扭带进行强化换热。基于工程流体力学理论和CFD软件进行了第一壁的热流体分析。研究了在相同工况下不同扭带参数对换热效果的影响。结果表明,扭带可以有效提高第一壁的换热能力,在结构参数为带厚3mm、带宽11mm、扭率2.5时换热效果最佳,第一壁内壁面平均换热系数提升了7.9%,结构温度升高量降低了8.6%。To address the issue of insufficient heat transfer capacity in the first wall(FW)of the helium-cooled ceramic breeder blanket,a twisted band was inserted into the cooling pipe to investigate enhanced heat transfer.Thermal fluid analysis on the first wall was conducted using principles from engineering fluid mechanics theory and CFD software.The impact of different parameters related to twisted band on heat transfer under identical operating conditions was examined.The simulation indicates that twisting band effectively enhances heat transfer capability in the first wall.Optimal heat transfer performance is achieved with a band thickness of 3mm,bandwidth of 11mm and twisting rate of 2.5.This configuration leads to an average increase in inner wall heat transfer coefficient by 7.9%while reducing structural temperature rise by 8.6%.

关 键 词：第一壁 强化换热 热工水力分析 扭带 

分 类 号：TL62[核科学技术—核技术及应用]