Development and Verification of a Multi-Physics Transport Code of Molten Salt Reactor Fission Products

Liang Chen, Liaoyuan He, Shaopeng Xia, Minyu Peng, Guifeng Zhu, Rui Yan (), Yang Zou and Hongjie Xu ()
Additional contact information
Liang Chen: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Liaoyuan He: CNNC 404 Co., Ltd., Jiayuguan 735100, China
Shaopeng Xia: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Minyu Peng: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Guifeng Zhu: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Rui Yan: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Yang Zou: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Hongjie Xu: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

Energies, 2024, vol. 17, issue 21, 1-20

Abstract: The transport of fission products in molten salt reactors has attracted much attention. However, few codes can completely describe the transport characteristic, though the migration of fission products in the molten salt reactor is essential to estimate the source term, decay heat, and radiation shielding. This study built a program named ThorFPMC (Thorium Fission Products Migration Code) that can handle the multi-physics transport characteristic based on the flow burnup code ThorMODEc (Thorium MOlten Salt Reactor Specific DEpletion Code). A problem-related depletion chain compression method was applied to decrease the order of the solve matrix. The matrix exponential and splitting methods were applied to solve the steady state and transient calculation, respectively. Error analysis showed that for a specific problem, the simplified depletion chain matrix index method could solve the fission products migration equation with an arbitrary time-step with high speed (s) and high precision (10 −4 ); the splitting method could reach a precision of 10 −2 level for the full fuel depletion chain, multi-nodes, and transient problems. Compared to the Strang splitting method, the perturbation splitting method has higher precision and less time consumption. In summary, the developed programmer could describe the migration effect of fission products in molten salt reactors, which provides a significant tool for the design of molten salt reactors.

Keywords: molten salt reactor; fission products migration; species transport (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/17/21/5448/pdf (application/pdf)
https://www.mdpi.com/1996-1073/17/21/5448/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:17:y:2024:i:21:p:5448-:d:1511778

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().