3D imaging and heat transfer simulation of the tritium breeding ceramic pebbles based on X-ray computed tomography (X-ray CT)

被引：4

作者：

Xu, Yu-Ping ^{[1
]}

Zhang, Rui-Yuan ^{[2
]}

Lyu, Yi-Ming ^{[1
]}

Wang, Cong ^{[1
,3
]}

Chen, Lei ^{[1
]}

Hu, Xin ^{[4
]}

Li, Xiao-Chun ^{[1
]}

Zhang, Ying-Chun ^{[4
]}

Chen, Li ^{[2
]}

Zhou, Hai-Shan ^{[1
]}

Luo, Guang-Nan ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China

[2] Xi An Jiao Tong Univ, Key Lab Thermofluid Sci & Engn, MOE, Xian, Peoples R China

[3] Univ Sci & Technol China, Hefei, Peoples R China

[4] Univ Sci & Technol Beijing, Beijing, Peoples R China

来源：

JOURNAL OF NUCLEAR MATERIALS | 2022年 / 559卷

基金：

中国国家自然科学基金;

关键词：

X-ray computed tomography; Tritium breeding pebbles; 3D imaging; Heat transfer; Lattice Boltzmann method; EFFECTIVE THERMAL-CONDUCTIVITY; LATTICE BOLTZMANN MODEL; FUEL-CELL; TRANSPORT; DESIGN;

D O I：

10.1016/j.jnucmat.2021.153447

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pebbles made of lithium-containing ceramics with a few millimeters in diameter have been regarded as the main candidates for the tritium breeding materials. In this work, X-ray computed tomography (Xray CT) technique has been employed to observe the microstructure of tritium breeding pebbles. The 3D pore network of the pebbles was presented and compared with normal 2D images. Based on the CT results, simulations of the heat transfer in one single pebble have been performed employing lattice Boltzmann method and showed that the gas atmospheres and microstructure have apparent influences on the thermal conductivities of pebbles.(c) 2021 Elsevier B.V. All rights reserved.

引用

页数：6

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