高温ガス実験炉燃料体の伝熱流動試験，（ＶＩ）　ＨＥＮＤＥＬ多チャンネル試験装置によるクロス流れ試験結果

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書誌事項

タイトル別名
  • Experimental Studies on Thermal and Hydraulic Performance of Fuel Stack of VHTR,(VI). Results of Crossflow Test by HENDEL Multi-Channel Test Rig.
  • コウオン ガス ジッケンロ ネンリョウタイ ノ デンネツ リュウドウ シケン
  • ReSults of Crossflow Test by HENDEL Multi-Channel Test Rig
  • HENDEL多チャンネル試験装置によるクロス流れ試験結果

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説明

The multi-channel test rig (T1-M) of the fuel stack test section in a helium engineering demonstration loop (HENDEL) is a large-scale experimental facility which simulates one fuel column of the HTTR core.<BR>A crossflow test was carried out using the T1-M. The objective of this test is to investigate the thermal and hydraulic characteristics in the fuel stack under the conditions that produced the crossflow through a gap from the outside of the graphite blocks into twelve coolant channels. The crossflow was forcibily produced by a parallel gap situated between the third and fourth blocks from the top of those in the heated section mounted in the vertical direction.<BR>The crossflow was 43-56% of the total flow rate of helium gas in T1-M for heated flow and 5-37% for isothermal flow, and that became more in an outer channel of Nos. 7-12 channels than in an inner channel of Nos. 1-6 with decreasing the gap width. Also it was found that the crossflow affected a redistribution of flow rate flowing into the ch nnels and a temperature distribution of the fuel rod.

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