細管径フィンチューブ熱交換器の熱伝達率と圧力損失

DOI
  • 田中 博由
    松下電器産業(株) 中央研究所 (570 守口市八雲中町3-15)
  • 青山 繁男
    松下冷機(株) 技術センター (577 東大阪市高井田本通3-22)
  • 小間 八郎
    松下冷機(株) コイル事業部 (525 草津市野路町2275)
  • 安立 正明
    松下電器産業(株) 中央研究所 (570 守口市八雲中町3-15)

書誌事項

タイトル別名
  • HeatTransfer Coefficients and Pressure Drops of The Finned Tube Heat Exchangers with Small Diameter Pipes

抄録

In order to enhance the heat transfer coefficient of the fin used in the finned tube heat exchanger, newly designed fin surfaces, especially, with small diameter (≅4mm) pipes are developed. The experiments are made by the transient testing technique, and used the plastic fins scaling up 4 times of the actual metal fin size. The data of the heat transfer coefficient and the pressure drop are transformed to the actual metal fin data.<br>The fin with the anomalous staggered pipe arrangement and the bridge-like cutting-out with inclined leg portion from stream line is found to have very high overall heat transfer coefficient which is about 1.8-fold increase in comparison with the conventional Louvered fin.<br>In this paper the reason why such enhancement is caused is clarified by mean of the calculation based on the rectangular duct flow. The calculated values are coincident with the data of the experiment well.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390282679641647360
  • NII論文ID
    130004566324
  • DOI
    10.11322/tjsrae.5.359
  • ISSN
    2185789X
    13444905
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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