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首页> 外文期刊>International Journal of Heat and Mass Transfer >Constructal multi-tube configuration for natural and forced convection in cross-flow
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Constructal multi-tube configuration for natural and forced convection in cross-flow

机译：错流中自然对流和强制对流的结构多管配置

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摘要

This paper shows how the configuration of a heat exchanger with fixed size controls the global performance. The cold-side fluid is driven by natural convection in vertical round tubes connected via two plenums. The hot-side fluid flows perpendicularly to the vertical tubes, and heats them by forced convection. The flow is laminar on both sides. The search for the flow configuration is pursued from a configuration with two tubes to three and four tubes. When the configuration has two tubes, the best design is with tubes with nearly the same diameter. When there are three tubes, it is possible to optimize the tube spac-ings as well. The constructal design represents a departure from the traditional approach, which consists of many tubes with the same diameter and spacing.
机译：本文展示了固定尺寸的热交换器的配置如何控制整体性能。冷侧流体由通过两个气室连接的垂直圆管中的自然对流驱动。热侧流体垂直于垂直管流动，并通过强制对流加热它们。流动在两侧都是层流的。从具有两个管的配置到三个和四个管的配置中进行对流动配置的搜索。当配置有两个管时，最好的设计是使用直径几乎相同的管。如果有三支试管，也可以优化试管的间距。结构设计代表了与传统方法的不同之处，传统方法由许多具有相同直径和间距的管组成。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2010年第24期|p.5121-5128|共8页
  • 作者

    Y. Kim; S. Lorente; A. Bejan;

  • 作者单位

    Duke University, Department of Mechanical Engineering and Materials Science, Durham, NC 27708-0300, USA;

    rnUniversite de Toulouse, UPS, INSA, LMDC (Laboratoire Materiaux et Durability des Constructions), 135 avenue de Rangueil, F-31 077 Toulouse Cedex 04, France;

    rnDuke University, Department of Mechanical Engineering and Materials Science, Durham, NC 27708-0300, USA;

  • 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

    constructal; design generation; cross-flow; natural loop; thermosyphon;

    机译：建设性的设计生成;横流;自然循环热虹吸管;

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