Safety Analyses for Transient Behavior of Plasma and In-vessel Components during Plasma Abnormal Events in Fusion Reactor.
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- HONDA Takuro
- Hitachi Research Laboratory Hitachi Ltd.
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- BARTELS H-W
- ITER Joint Central Team San Diego
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- UCKAN N. A.
- Oak Ridge National Laboratory
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- OKAZAKI Takashi
- Hitachi Research Laboratory Hitachi Ltd.
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- SEKI Yasushi
- Naka Fusion Research Establishment Japan Atomic Energy Research Institute
書誌事項
- タイトル別名
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- Safety Analyses for Transient Behavior
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Safety analyses on plasma abnormal events have been performed using a hybrid code of a plasma dynamics model and a heat transfer model of in-vessel components. Several abnormal events, e.g., increase in fueling rate, were selected for the International Thermonuclear Experimental Reactor (ITER) and transient behavior of the plasma and the invessel components during the events was analyzed. The physics model for safety analysis was conservatively prepared. In most cases, the plasma is terminated by a disruption or it returns to the original operation point. When the energy confinement improves by a factor of 2.0 in the steady state, which is a hypothetical assumption under the present plasma data, the maximum fusion power reaches about 3.3GW at about 3.6s and the plasma is terminated due to a disruption. However, the results obtained in this study show the confinement boundary of ITER can be kept almost intact during the abnormal plasma transients, as long as the cooling system works normally. Several parametric studies are needed to comprehend the overpower transient including structure behavior, since many uncertainties are connected to the filed of the plasma physics. And, future work will need to discuss the burn control scenario considering confinement mode transition, system specifications, experimental plans and safety regulations, etc. to confirm the safety related to the plasma anomaly.
収録刊行物
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- Journal of Nuclear Science and Technology(日本原子力学会英文論文誌)
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Journal of Nuclear Science and Technology(日本原子力学会英文論文誌) 34 (7), 628-637, 1997
一般社団法人 日本原子力学会
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詳細情報 詳細情報について
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- CRID
- 1390001204096223104
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- NII論文ID
- 10002077472
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- NII書誌ID
- AA00703720
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- COI
- 1:CAS:528:DyaK2sXls1Kjsrs%3D
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- ISSN
- 18811248
- 00223131
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- NDL書誌ID
- 4260271
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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