Water Experiments on Thermal Striping at Upper Internal Structure of Japan Sodium-cooled Fast Reactor
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- KOBAYASHI Jun
- Japan Atomic Energy Agency
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- EZURE Toshiki
- Japan Atomic Energy Agency
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- TANAKA Masaaki
- Japan Atomic Energy Agency
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- KAMIDE Hideki
- Japan Atomic Energy Agency
Bibliographic Information
- Other Title
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- ナトリウム冷却高速炉の炉内構造物近傍におけるサーマルストライピング現象に関する水流動試験
Abstract
<p>JAEA has been conducting a design study for an advanced large-scale sodium-cooled fast reactor (SFR). Hot sodium from the fuel subassembly can mix with the cold sodium from the control rod (CR) channel and blanket assemblies at the bottom of Upper Internal Structure (UIS). Temperature fluctuation due to the fluid mixing at the core outlet may cause high cycle thermal fatigue at the bottom of UIS. JAEA had performed a water experiment to examine countermeasures for the significant temperature fluctuation generated at the bottom of SFRs UIS. A water experiment was conducted using a 1/3 scale 60°-sector model of the reactor core and upper plenum. The temperature fluctuations near the cold fluid outlets were determined, and several countermeasures were tested. It was confirmed that these countermeasures could reduce the temperature fluctuations at the bottom of the UIS.</p>
Journal
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- The Proceedings of Mechanical Engineering Congress, Japan
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The Proceedings of Mechanical Engineering Congress, Japan 2016 (0), J0310305-, 2016
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282680814365184
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- NII Article ID
- 130007064210
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- ISSN
- 24242667
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed