3D imaging and heat transfer simulation of the tritium breeding ceramic pebbles based on X-ray computed tomography (X-ray CT)
- Resource Type
- Authors
- Rui-Yuan Zhang; Xin Hu; Li Chen; Xiao-Chun Li; Hai-Shan Zhou; Yu-Ping Xu; Guang-Nan Luo; Yingchun Zhang; Cong Wang; Yi-Ming Lyu; Lei Chen
- Source
- Journal of Nuclear Materials. 559:153447
- Subject
- Nuclear and High Energy Physics
Materials science
Lattice Boltzmann methods
X-ray
Microstructure
Nuclear Energy and Engineering
visual_art
Heat transfer
Thermal
visual_art.visual_art_medium
General Materials Science
Tomography
Ceramic
Composite material
Pebble
- Language
- ISSN
- 0022-3115
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 (X-ray 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.