A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking
Combustion; Fuels; High temperature engineering; Monte Carlo methods; Oxide minerals; Thoria; Uranium dioxide; High temperature engineering test reactors; Monte carlo n particles; Multiplication factor; Neutron flux distributions; Neutronic analysis; Power Optimization; Reactor modeling; Reference m...
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2023
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my.uniten.dspace-259452023-05-29T17:05:41Z A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking Rabir M.H. Ismail A.F. Yahya M.S. 55898782000 29067828200 56287449000 Combustion; Fuels; High temperature engineering; Monte Carlo methods; Oxide minerals; Thoria; Uranium dioxide; High temperature engineering test reactors; Monte carlo n particles; Multiplication factor; Neutron flux distributions; Neutronic analysis; Power Optimization; Reactor modeling; Reference modeling; High temperature reactors This paper presents the neutronic analysis of a tristructural isotropic (TRISO)-duplex fuel loaded into the high-temperature reactor (HTR) prismatic fuel block designs for a seed-and-blanket (S&B) reactor model. The selected fuel block design is the simplified model of a representative fuel configuration for the gas turbine�module helium reactor (GT-MHR) and high-temperature engineering test reactor (HTTR). The duplex fuel pellet comprises of UO2 as the seed and ThO2 as the blanket and uses the TRISO fuels. Monte Carlo N-particle extended (MCNPX) simulations were conducted to analyze the power and neutron flux distributions of the reference fuel block and that of the TRIOS-loaded duplex fuel designs. Standard neutronic parameters were computed, such as burnup-dependent infinite multiplication factors (kinf), average block spectrum, and fissile inventory. It was discovered that while the S&B model could attain the highest burnup and the longest cycle duration, its power peaking was more than threefolds than that of the reference model at the beginning of the cycle (BOC). The results also show that the �Duplex-2� model could reduce its power peaking by 24% through the integration of S&B arrangement with the duplex rods. It is noted that spatial distribution of the UO2 seed and 235U enrichment are the chief determining factors in the power optimization of the heterogeneous HTR prismatic fuel blocks loaded with thorium. � 2021 John Wiley & Sons Ltd. Final 2023-05-29T09:05:41Z 2023-05-29T09:05:41Z 2021 Article 10.1002/er.7021 2-s2.0-85109613356 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109613356&doi=10.1002%2fer.7021&partnerID=40&md5=3f0e541d606d39712b50bb9657fc70b3 https://irepository.uniten.edu.my/handle/123456789/25945 45 13 19265 19288 John Wiley and Sons Ltd Scopus |
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Combustion; Fuels; High temperature engineering; Monte Carlo methods; Oxide minerals; Thoria; Uranium dioxide; High temperature engineering test reactors; Monte carlo n particles; Multiplication factor; Neutron flux distributions; Neutronic analysis; Power Optimization; Reactor modeling; Reference modeling; High temperature reactors |
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55898782000 Rabir M.H. Ismail A.F. Yahya M.S. |
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Article |
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Rabir M.H. Ismail A.F. Yahya M.S. |
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Rabir M.H. Ismail A.F. Yahya M.S. A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking |
| author_sort |
Rabir M.H. |
| title |
A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking |
| title_short |
A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking |
| title_full |
A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking |
| title_fullStr |
A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking |
| title_full_unstemmed |
A neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking |
| title_sort |
neutronic investigation of tristructural isotropic-duplex fuel in a high-temperature reactor prismatic seed-and-blanket fuel block configuration with reduced power peaking |
| publisher |
John Wiley and Sons Ltd |
| publishDate |
2023 |
| _version_ |
1806424226112995328 |
| score |
13.211869 |