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首页> 外文期刊>Heat Transfer Engineering >Fin Pattern Effects on Air-Side Heat Transfer and Friction Characteristics of Fin-and-Tube Heat Exchangers with Large Number of Large-Diameter Tube Rows
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Fin Pattern Effects on Air-Side Heat Transfer and Friction Characteristics of Fin-and-Tube Heat Exchangers with Large Number of Large-Diameter Tube Rows

机译：翅片型式对带有大口径管排的翅片管热交换器的空气侧传热和摩擦特性的影响

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摘要

Air-side heat transfer and friction characteristics of nine kinds of fin-and-tube heat exchangers, with a large number of tube rows (6, 9, and 12, respectively) and large diameter of tubes (18 mm), are experimentally investigated. The test samples consist of three types of fin configurations: plain fin, slit fin, and fin with delta-wing longitudinal vortex generators. The working fluid in the tube is steam. Results show that when the number of tube is larger than 6, the heat transfer and friction performance for three kinds of fins is independent of the number of tube rows, and slit fin provides higher heat transfer and pressure drop than the other wo fins. The heat transfer and friction factor correlations for all the heat exchangers were acquired with Reynolds numbers ranging from 4000 to 10000. The air-side performance of heat exchangers with plain fin, slit fin, and longitudinal vortex-generator fin were evaluated under three sets of criteria, and the results showed that the heat exchanger with slit fin has better performance than that with vortex-generator fin, especially at high Reynolds numbers.
机译：实验研究了九种翅片管式换热器的空气侧传热和摩擦特性，它们分别具有大量的管排（分别为6、9和12）和较大的管径（18 mm）。 。测试样本包括三种类型的鳍片配置：普通鳍片，狭缝鳍片和带有三角翼纵向涡流发生器的鳍片。管中的工作流体是蒸汽。结果表明，当管数大于6时，三种翅片的传热和摩擦性能与管排数无关，而狭缝翅片的导热和压降比其他翅片高。获得所有换热器的传热和摩擦系数的相关性，雷诺数在4000到10000之间。在三组压力下，评估了带有平翅片，切缝翅片和纵向涡流发生器翅片的热交换器的空气侧性能。结果表明，带翅片的换热器比带涡流式翅片的换热器性能更好，特别是在雷诺数高的情况下。

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  • 来源
    《Heat Transfer Engineering》 |2009年第3期|171-180|共10页
  • 作者

    LING-HONG TANG; ZENG MIN; GONG-NAN XIE; QIU-WANG WANG;

  • 作者单位

    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China;

    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China;

    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China;

    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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