浅層流動層における水平管群の熱伝達特性 : 層高の影響

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  • An Experimental Study of Heat Transfer From Horizontal Tube Bundle in Shallow Fluidized Bed
  • センソウ リュウドウソウ ニ オケル スイヘイカングン ノ ネツデンタツ トクセイ : ソウコウ ノ エイキョウ

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The characteristics of convective heat transfer from horizontal tube bundle (19mm dia., 3 rows, staggered) in a shallow square fluidized bed (0.4×0.4m in cross section) were studied experimentally. The effect of tube location (height of tube from distributor), static bed height and superficial gas velocity on heat transfer were clarified. It was found that the circumferencial distribution of local heat transfer coefficient qualitatively agreed with previous experimental results and average heat transfer coefficient on the tubes located above the mean expanded bed surface was very low.

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