Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuel
As one of the forth-generation nuclear energy system reactor types, lead fast reactor has good safety and economical properties due to the stable chemical properties of the coolant and the proliferation characteristics of the fuel, and modular nuclear power faster reactor designed for nuclear plant...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Nuclear Engineering |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnuen.2024.1328964/full |
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| author | Lei Lou Lianjie Wang Xingjie Peng Zhang Chen Bingyan Zhou Chen Zhao Bin Zhang Mingyu Yan Dangwei Ma Xingbo Wang Zifan Zhao Ce Zhang |
| author_facet | Lei Lou Lianjie Wang Xingjie Peng Zhang Chen Bingyan Zhou Chen Zhao Bin Zhang Mingyu Yan Dangwei Ma Xingbo Wang Zifan Zhao Ce Zhang |
| author_sort | Lei Lou |
| collection | DOAJ |
| description | As one of the forth-generation nuclear energy system reactor types, lead fast reactor has good safety and economical properties due to the stable chemical properties of the coolant and the proliferation characteristics of the fuel, and modular nuclear power faster reactor designed for nuclear plant can further improve the economics of the reactor. In this article, the conceptual design of the lead-based modular power reactors with different power levels loaded with uranium alloy fuel is found to be found that when reactor core size increased to a certain level, the proliferation performance is too high due to the increase of the reactor core size under a specific core life such as 2000EFPD, so at the end of core life, the reactor core still has a large remaining reactivity. The proliferation advantage of the core cannot be fully released during the current core life time. Based on this phenomenon, in this article, we optimized the conceptual design of lead-based modular nuclear power reactor core loaded with uranium alloy fuel, and proposed to choose the appropriate rod to diameter ratio and effective density of fuel based on the power level and life time of the core. By adjusting the amount of uranium and 235U per unit volume, the proliferation performance of the core can be changed to match the power level and life time of the core. So the reactivity of core during the life period does not change, which not only reduce the difficulty of the reactivity control, but also make full use of the proliferation performance of the core. And at the same time, the reasonable rod to diameter ratio can provide safety and design margin for the analysis of thermal and hydraulic safety, and effectively improve the economy and safety of the core. |
| first_indexed | 2024-03-07T23:52:34Z |
| format | Article |
| id | doaj.art-f8b7211bc97f4c0fad20ec50bba2c2bd |
| institution | Directory Open Access Journal |
| issn | 2813-3412 |
| language | English |
| last_indexed | 2024-03-07T23:52:34Z |
| publishDate | 2024-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Nuclear Engineering |
| spelling | doaj.art-f8b7211bc97f4c0fad20ec50bba2c2bd2024-02-19T04:46:51ZengFrontiers Media S.A.Frontiers in Nuclear Engineering2813-34122024-02-01310.3389/fnuen.2024.13289641328964Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuelLei LouLianjie WangXingjie PengZhang ChenBingyan ZhouChen ZhaoBin ZhangMingyu YanDangwei MaXingbo WangZifan ZhaoCe ZhangAs one of the forth-generation nuclear energy system reactor types, lead fast reactor has good safety and economical properties due to the stable chemical properties of the coolant and the proliferation characteristics of the fuel, and modular nuclear power faster reactor designed for nuclear plant can further improve the economics of the reactor. In this article, the conceptual design of the lead-based modular power reactors with different power levels loaded with uranium alloy fuel is found to be found that when reactor core size increased to a certain level, the proliferation performance is too high due to the increase of the reactor core size under a specific core life such as 2000EFPD, so at the end of core life, the reactor core still has a large remaining reactivity. The proliferation advantage of the core cannot be fully released during the current core life time. Based on this phenomenon, in this article, we optimized the conceptual design of lead-based modular nuclear power reactor core loaded with uranium alloy fuel, and proposed to choose the appropriate rod to diameter ratio and effective density of fuel based on the power level and life time of the core. By adjusting the amount of uranium and 235U per unit volume, the proliferation performance of the core can be changed to match the power level and life time of the core. So the reactivity of core during the life period does not change, which not only reduce the difficulty of the reactivity control, but also make full use of the proliferation performance of the core. And at the same time, the reasonable rod to diameter ratio can provide safety and design margin for the analysis of thermal and hydraulic safety, and effectively improve the economy and safety of the core.https://www.frontiersin.org/articles/10.3389/fnuen.2024.1328964/fulllead-based modular reactoruranium alloy fueloptimization of reactor core conceptual designeffective density of fuel pinthe rod to diameter ratio |
| spellingShingle | Lei Lou Lianjie Wang Xingjie Peng Zhang Chen Bingyan Zhou Chen Zhao Bin Zhang Mingyu Yan Dangwei Ma Xingbo Wang Zifan Zhao Ce Zhang Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuel Frontiers in Nuclear Engineering lead-based modular reactor uranium alloy fuel optimization of reactor core conceptual design effective density of fuel pin the rod to diameter ratio |
| title | Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuel |
| title_full | Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuel |
| title_fullStr | Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuel |
| title_full_unstemmed | Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuel |
| title_short | Optimization of conceptual design on the lead-based modular nuclear power reactor core loaded with U-10Zr alloy fuel |
| title_sort | optimization of conceptual design on the lead based modular nuclear power reactor core loaded with u 10zr alloy fuel |
| topic | lead-based modular reactor uranium alloy fuel optimization of reactor core conceptual design effective density of fuel pin the rod to diameter ratio |
| url | https://www.frontiersin.org/articles/10.3389/fnuen.2024.1328964/full |
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