Transmutation of Cs-135 in a single-fluid double-zone thorium molten salt reactor
文献类型：期刊论文
| 作者 | Ma, KF; Yu, CG; Chen, JG; Cai, XZ |
| 刊名 | INTERNATIONAL JOURNAL OF ENERGY RESEARCH
 |
| 页码 | - |
| ISSN号 | 0363-907X |
| 关键词 | EVOLUTION CESIUM |
| DOI | 10.1002/er.6235 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The single-fluid double-zone thorium molten salt reactor (SD-TMSR) allows for online reprocessing fission products and adding nuclear fuel, which provides a high Th-U breeding capability for thorium utilization. Although Xe-135 in the core can be online extracted by the helium bubbling system during reactor operation to improve the reactor neutron economy, it would decay to the long-lived Cs-135 with a half-life of 2.3 x 10(6) years, which is undesired from the viewpoint of the development of nuclear energy. The total production of Cs-135 decayed from the extracted Xe-135 is about 1.83 tons for the SD-TMSR after 60 years operation. To reduce the significant accumulation of Cs-135, we propose a cooling transmutation method, by which the produced Cs-135 is reinjected into the core for transmutation. First, a separation and multigroup cooling system in the SD-TMSR is adopted to enhance the mass fraction of decayed Cs-135 in the total Cs isotopes from 29% to 75%. Then, the separated Cs isotopes with optimized mass fraction of Cs-135 are online injected into the core for transmutation. The total transmuted mass of Cs-135 is about 0.61 tons after 60 years operation, corresponding to the transmuted fraction of about 37.42% and the transmutation rate of 10.17 kg/(GWe y). Moreover, the net U-233 production is about 2.03 tons which is much larger than the initial U-233 loading inventory of the SD-TMSR, indicating that the Th-U breeding mode for the transmutation of Cs-135 in the SD-TMSR can be achieved over 60 years. Novelty Statement "Transmutation of Cs-135 in a single-fluid double-zone thorium molten salt reactor" was investigated by Kunfeng Ma, Chenggang Yu*, Jingen Chen*, and Xiangzhou Cai. A cooling transmutation method is performed to reduce the Cs-135 decayed from Xe-135 outside of core. It is found that a separation and multigroup cooling system improves the mass fraction of Cs-135 in the total Cs isotopes from 29% to 75% and an online returning Cs-135 transmutation scenario transmutes about 0.61 tons of Cs-135 over 60 years. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33222]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, CAS Innovat Acad TMSR Energy Syst, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, KF,Yu, CG,Chen, JG,et al. Transmutation of Cs-135 in a single-fluid double-zone thorium molten salt reactor[J]. INTERNATIONAL JOURNAL OF ENERGY RESEARCH:-. |
| APA | Ma, KF,Yu, CG,Chen, JG,&Cai, XZ. |
| MLA | Ma, KF,et al."Transmutation of Cs-135 in a single-fluid double-zone thorium molten salt reactor".INTERNATIONAL JOURNAL OF ENERGY RESEARCH |
入库方式： OAI收割
来源：上海应用物理研究所
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