Leakage flows in high-temperature gas-cooled reactor graphite fuel elements.
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- KABURAKI Hideo
- Department of High Temperature Engineering, Tokai Research Establishment, Japan Atomic Energy Research Institute
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- TAKIZUKA Takakazu
- Department of High Temperature Engineering, Tokai Research Establishment, Japan Atomic Energy Research Institute
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説明
In a high-temperature gas-cooled reactor core, which consists of prismatic graphite fuel elements, leakage flows of coolant gas occur through gaps between blocks. Since the effects of these leakage flows on the total flow distribution are significant, their flow features must be clarified. In this paper, the leakage flows (crossflow through the interface gap between contacting fuel elements and the permeation flow through the fuel elements) in the normally stacked fuel elements were studied. In the basic experiments, leakage flow rates were meas-ured using small-scale graphite blocks to determine the equivalent interface gap width and the permeability. The experiments using the full-scale fuel element were also carried out and the results agreed well with those of the basic experiments. Furthermore, a simple flow model was devised to predict the leakage flow in the fuel element.
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) 22 (5), 387-397, 1985
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
- 1390282679071605632
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- NII論文ID
- 130000827563
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- COI
- 1:CAS:528:DyaL2MXkt1yrtrc%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