Interpretation of Spatial Kinetics for Rod Drop Experiment in Loosely Coupled-Core Systems.
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- HASHIMOTO Kengo
- Atomic Energy Research Institute, Kinki University
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- OHSAWA Takaaki
- Atomic Energy Research Institute, Kinki University
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- MISAWA Tsuyoshi
- Department of Nuclear Engineering, Faculty of Engineering, Nagoya University
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- YAMANE Yoshihiro
- Department of Nuclear Engineering, Faculty of Engineering, Nagoya University
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- NISHINA Kojiro
- Department of Nuclear Engineering, Faculty of Engineering, Nagoya University
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- SHIROYA Seiji
- Research Reactor Institute, Kyoto University
抄録
The coupled two-core reactor systems with various degrees of spatial coupling were constructed in the Kyoto University Critical Assembly (KUCA) to study the spatial kinetics observed in the control rod drop experiment. By applying the two-mode and the two-point kinetic models to the space-dependent rod worths measured on the basis of the one-point model, the first-harmonic λ-mode eigenvalue separation and the reactivity coupling coefficient were inferred. The present values of these parameters agreed with the results obtained by the reactor noise measurements and the diffusion calculations. <BR>The experimental results show that the magnitudes of the spatial kinetic phenomena including the dependence of the rod reactivity worth on the detector position, the reactivity interaction effect between control rods and the transient flux tilts induced by the rod drop, which have been significantly observed in large thermal and fast power reactors, are inversely proportional to the eigenvalue separation. Applying the two-mode model, the inherent reactivity worths of control rods were also inferred from the space-dependent ones.
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) 30 (10), 981-990, 1993
一般社団法人 日本原子力学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001204095306880
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- NII論文ID
- 130000825908
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- COI
- 1:CAS:528:DyaK2cXktVWrtw%3D%3D
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- ISSN
- 18811248
- 00223131
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可