鉛直平行平板間の空気の乱流自由対流熱伝達 : 熱伝達特性について

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  • Turbulent Free Convection Heat Transfer from Vertical Parallel Plates in Air : Heat Transfer Characteristics
  • エンチョク ヘイコウ ヘイバンカン ノ クウキ ノ ランリュウ ジユウ タイリュウ ネツ デンタツ ネツ デンタツ トクセイ ニツイテ

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Turbulent free convection heat transfer from vertical parallel plates (5m length), which were a plate with uniform heat generation and a thermally insulated plate, was experimentally studied for air. Measurements were made for 9 pairs of the two hydrodynamic conditions, which were an interplate spacing B (=50,95 and 195mm) and a leading edge height H (=10,90,170 and 465mm) of the vertical plates from a floor, in the range of the heat generation rate between 52 and 208W/m^2. Experimental results demonstrated that heat transfer coefficients (based on inlet fluid temperature) on the higher vertical location from the leading edge than 2m were almost independent of H excepting H of 10mm and were reduced with decreasing B.

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