Study on the effect of the
manufacturing tolerance of WCCB blanket first wall on the heat transfer and
thermal stress

doi:10.16568/j.0254-6086.202203008

Nuclear Fusion and Plasma Physics ›› 2022, Vol. 42 ›› Issue (3): 314-321.DOI: 10.16568/j.0254-6086.202203008

• Nuclear Fusion Engineering • Previous Articles Next Articles

Study on the effect of the manufacturing tolerance of WCCB blanket first wall on the heat transfer and thermal stress

CHEN Chang^{1, 2}, JIANG Ke-cheng¹, WANG Wan-jing¹, LIU Song-lin¹

(1. Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031; 2. University of Science and Technology of China, Hefei 230026)

Received:2020-09-27 Revised:2022-03-20 Online:2022-09-15 Published:2022-09-21

水冷陶瓷包层第一壁制造偏差对传热与热应力的影响分析

陈畅^{1, 2}，蒋科成^*1，王万景¹，刘松林¹

(1. 中国科学院合肥物质科学研究院，等离子体物理研究所，合肥 230031；2. 中国科学技术大学，合肥 230026)

通讯作者: 蒋科成(1992‒)，男，河南安阳人，博士，助理研究员，从事反应堆热工水力学研究。
作者简介:陈畅(1994‒)，男，重庆潼南人，硕士研究生，从事反应堆热工水力学研究。
基金资助:
国家重点研发计划(2017YFE0300503)

Abstract

Abstract:

To study the effect of manufacturing tolerance on the heat transfer and thermal stress, based on the manufacturing samples of first wall (FW) for the water-cooled ceramic breeder (WCCB) #3 blanket, the manufacturing tolerance is divided into three classes: size, site and shape tolerance. The simulation results show the influence of manufacturing tolerance on heat transfer and thermal stress is acceptable. However, considering the coupling of three kinds of tolerance, compared with the ideal design, the mass flow rate reduces by 72.5% and pressure drop increases by 24.2% due to the change of channel size and shape; the maximum temperature of structural steel is 532.6°C, which meets heat transfer requirement, but it increases by 119.2°C and the temperature allowance is only 17.4°C. Therefore, in actual manufacture, the first wall flow channel size should not less than 6mm, the depression depth should not exceed 2.5mm and the front wall distance should not exceed 5mm.

Key words: WCCB, FW, Manufacturing tolerance, Heat transfer, Thermal stress

摘要：

为了对水冷陶瓷包层第一壁制造偏差对传热与热应力的影响进行分析，基于水冷陶瓷增殖剂#3号包层第一壁的制造样品，将制造偏差归为尺寸、位置以及形状偏差。模拟结果显示，制造偏差对第一壁传热和热应力的影响是可接受的。但考虑到三种极端偏差的耦合时，与理想设计相比，流道尺寸和形状的改变造成流量减小72.5%，压降上升24.2%，结构钢的最大温度为532.6°C，满足传热要求，但增加了119.2°C且裕量仅有17.4°C。因此在实际制造时，第一壁的流道尺寸应不小于6mm，凹陷深度不超过2.5mm以及前壁距离不超过5mm。

关键词: 水冷陶瓷包层, 第一壁, 制造偏差, 传热, 热应力

CLC Number:

TL33⁺4

CHEN Chang, JIANG Ke-cheng, WANG Wan-jing, LIU Song-lin. Study on the effect of the manufacturing tolerance of WCCB blanket first wall on the heat transfer and thermal stress[J]. Nuclear Fusion and Plasma Physics, 2022, 42(3): 314-321.

陈畅, 蒋科成, 王万景, 刘松林. 水冷陶瓷包层第一壁制造偏差对传热与热应力的影响分析[J]. 核聚变与等离子体物理, 2022, 42(3): 314-321.

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Study on the effect of the manufacturing tolerance of WCCB blanket first wall on the heat transfer and thermal stress

水冷陶瓷包层第一壁制造偏差对传热与热应力的影响分析

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