ICONE19-43300 Fuel Rod Surface Temperature Distributions in Liquid Metal Sub-channel Flows
-
- Lee Yu-Hsien
- Inst. of Nuclear Eng. & Sci., NTHU
-
- Ferng Yu-Ming
- Inst. of Nuclear Eng. & Sci., NTHU
-
- Wang Jong-Rong
- Inst. of Nuclear Energy Research
-
- Shih Chunkuan
- Inst. of Nuclear Eng. & Sci., NTHU
抄録
A numerical study on fuel rod surface temperature distributions in liquid metal cooled sub-channel flow is presented in this paper. Special interests are focused on the effects of misaligned central fuel rod in typical fuel rod cluster geometries. Numerical models based on FLUENT, a Computational Fluid Dynamics (CFD) commercial software, are developed to model steady state fuel thermal conductions, fully-developed turbulent convective flows, and local flow mixing. Numerical results show that fuel rod surface temperatures are higher for surfaces facing the narrow gap of the sub-channel. The temperature differences are mainly dependent on the fuel pitch-to-diameter ratio, flow patterns, and other flow physical properties. Situations are worse for cases where misaligned fuel rods exist in tightly packed fuel rod clusters. Even for a small amount of rod center deviation, such temperature differences can be as high as 54 K around a fuel rod whose diameter is only 4.7 mm. The situations could be very serious and might generate unnecessary thermal stresses and cause fuel failure.
収録刊行物
-
- Proceedings of the ... International Conference on Nuclear Engineering. Book of abstracts : ICONE
-
Proceedings of the ... International Conference on Nuclear Engineering. Book of abstracts : ICONE 2011.19 (0), _ICONE1943-_ICONE1943, 2011
一般社団法人 日本機械学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282680856646912
-
- NII論文ID
- 110009956866
-
- ISSN
- 24242934
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可