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首页> 外文期刊>International Journal of Heat and Mass Transfer >Airside performance of fin-and-tube heat exchangers in dehumidifying conditions - Data with larger diameter
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Airside performance of fin-and-tube heat exchangers in dehumidifying conditions - Data with larger diameter

机译：翅片管式换热器在除湿条件下的空气侧性能-大直径数据

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摘要

This study presents the airside performance of the fin-and-tube heat exchangers having plain fin geometry with a larger diameter tube (D_c = 15.88 mm) under dehumidifying condition. A total of nine samples of heat exchangers subject to change of the number of tube row and fin pitch are made and tested. It is found that the effect of fin pitch on the sensible j factor is, in general, diminished with the rise of tube row. However, there is a unique characteristic of fin pitch at a shallow tube row, the heat transfer performance is first increased at a wider pitch but a further increase of fin pitch lead to a falloff of heat transfer performance due to interactions amid flow development and bypass flow. The influence of tube row on the airside performance is rather small for both heat transfer and frictional characteristics at a fin pitch of 2.1 mm and when the Reynolds number is less than 4000. A slight deviation of this effect is encountered when fin pitch is increased to 2.54 mm or 3.1 mm due to condensate adhered phenomena.
机译：这项研究提出了在除湿条件下，具有普通翅片几何形状且翅片管式换热器的空气侧性能，该翅片管式换热器具有较大直径的管（D_c = 15.88 mm）。总共制作并测试了九个换热器样品，这些样品会随着管排数和翅片间距的变化而变化。发现，随着管排的增加，翅片间距对显着的j因子的影响通常会减小。但是，在较浅的管排处，翅片节距有一个独特的特征，传热性能首先在较宽的节距处增加，但翅片节距的进一步增加由于流动发展和旁通中的相互作用而导致传热性能下降。流。对于2.1 mm的翅片节距和雷诺数小于4000的传热和摩擦特性，管排对空气侧性能的影响都很小。当翅片节距增加到2.54毫米或3.1毫米由于冷凝物附着现象。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2010年第8期|1603-1608|共6页
  • 作者

    Young-Chang Liu; Somchai Wongwises; Wen-Jeng Chang; Chi-Chuan Wang;

  • 作者单位

    Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu 310, Taiwan;

    Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab. (FUTURE), Department of Mechanical Engineering, King Mongkufs University of Technology Thonburi, Bangmod, Bangkok 10140, Thailand;

    Department of Mechanical and Computer Aided Engineering Feng Chia University, Taichung, Taiwan;

    Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu 310, Taiwan Department of Mechanical Engineering, National Chiao Tung University, Hsinchu 300, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fin-and-tube heat exchanger; plain fin; dehumidification;

    机译：翅片管换热器;普通鳍除湿;

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