Experimental Study on Heat Transfer Augmentation for High Heat Flux Removal in Rib-Roughened Narrow Channels.
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- ISLAM Md. Shafiqul
- Mechanical Engineering Department, Saga University
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- HINO Ryutaro
- Tokai Research Establishment, Japan Atomic Energy Research Institute
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- HAGA Katsuhiro
- Tokai Research Establishment, Japan Atomic Energy Research Institute
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- MONDE Masanori
- Mechanical Engineering Department, Saga University
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- SUDO Yukio
- Tokai Research Establishment, Japan Atomic Energy Research Institute
書誌事項
- タイトル別名
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- Experimental Study on Heat Transfer Aug
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Frictional pressure drop and heat transfer performance in a very narrow rectangular channel having one-sided constant heat flux and repeated-ribs were studied experimentally for turbulent water flows. Their empirical correlations were derived for designing target cooling channels to remove high heat flux generated at target plates in a high-intensity proton accelerator system. The rib pitch-to-height ratios (p/k) were 10 and 20 while holding the rib height constant at 0.2mm, the Reynolds number (Re) from 2, 400 to 98, 500 under different channel heights (H) of 1.2mm and 3.2mm, the rib height-to-channel equivalent diameter ratio (k/De) of 0.088 and 0.036, respectively. The results show that the rib-roughened surface augments heat transfer by about 2-2.5 times compared with the smooth surface at the expense of around 2.5 times higher frictional pressure drop under a range of Re=8, 000-to-30, 000 at p/k=10, and H=1.2mm. Experimental results of channel height, H=1.2mm show slightly higher heat transfer and friction factor performance than that of the channel height, H=3.2mm.
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) 35 (9), 671-678, 1998
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
- 1390282679071674752
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- NII論文ID
- 10002080075
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- NII書誌ID
- AA00703720
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- COI
- 1:CAS:528:DyaK1cXntlKlt7w%3D
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- ISSN
- 18811248
- 00223131
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- NDL書誌ID
- 4565731
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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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