縦板上凝縮熱伝達の促進 : 離散伝熱面におけるフィン厚みの影響 Enhancement of Condensation on a Vertical Plate : Effect of Fin Thickness on Dispersed Finned Surface

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In previous study, the characteristic of the condensation heat transfer on the dispersed vertical surface were investigated experimentally for the application of the finned surface to the thermoelectric generator utilizing boiling and condensation as the electrodes of the thermoelectric module. A prediction model for this diapered finned surface was proposed, based on Adamek-Webb model of the condensation on a finned tube. In this study, a condensation heat transfer experiment on a vertical dispersed finned surfaces using FC5312 was carried out, in order to enhance the condensation heat transfer coefficient by optimizing the fin size on a dispersed heat transfer surface. The object of the experiment was limited to the rectangular fin with the height of 3 mm. Experimental parameters were the temperature difference, the fin groove width, the fin thickness and the dispersing size on the vertical direction. As the results, it was found from the experiment that the dependence of the condensation heat transfer coefficient on the dispersed size is controlled by the fin groove width. That is, the condensation heat transfer coefficient will increase for a smaller fin groove width and will decrease for a larger fin groove width, with decreasing of the dispersing size. Moreover, there is an optimum fin thickness at which the condensation heat transfer coefficient becomes the maximum in the case of constant fin groove width for both size of the fin groove width. This effect of the fin thickness is more significant for the smaller fin groove width. Further, the prediction values exhibit a good agreement with the experimental data in the present experiment.

収録刊行物

  • Thermal science and engineering  

    Thermal science and engineering 14(4), 103-106, 2006-10-01 

    The Heat Transfer Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018290937
  • NII書誌ID(NCID)
    AA11358679
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09189963
  • NDL 記事登録ID
    8566707
  • NDL 雑誌分類
    ZM5(科学技術--科学技術一般--工学・工業)
  • NDL 請求記号
    Z54-J404
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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