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过程工程学报 ›› 2022, Vol. 22 ›› Issue (5): 561-572.DOI: 10.12034/j.issn.1009-606X.221153CSTR: 32067.14.jproeng.221153

• 综述 • 上一篇    下一篇

扭曲椭圆管强化传热研究进展及应用

李修真1,2， 谈莹莹1， 袁俊飞1， 王占伟1， 王林1*   

  1. 1. 河南科技大学建筑能源与热科学技术研究所，河南 洛阳 471023 2. 中国科学院可再生能源重点实验室，广东 广州 510640
  • 收稿日期:2021-05-07 修回日期:2021-08-18 出版日期:2022-05-28 发布日期:2022-05-27
  • 通讯作者: 王林 wlhaust@163.com
  • 作者简介:李修真(1990-)，男，河南省南阳市人，博士，讲师，动力工程及工程热物理专业，E-mail: lixiuzhen90@126.com；王林，通讯联系人， E-mail: wlhaust@163.com.
  • 基金资助:
    基于单效吸收/双源压缩制冷的复合热泵系统耦合机制及动态特性研究;利用两相流喷射器增效的自行复叠制冷循环研究;三维变形管烟-气换热器强化传热及防腐机理研究

Research progress and application of heat transfer enhancement of twisted oval tubes

Xiuzhen LI1,2,  Yingying TAN1,  Junfei YUAN1,  Zhanwei WANG1,  Lin WANG1*   

  1. 1. Institute of Building Energy and Thermal Science, Henan University of Science and Technology, Luoyang, Henan 471023, China 2. CAS Key Laboratory of Renewable Energy, Guangzhou, Guangdong 510640, China
  • Received:2021-05-07 Revised:2021-08-18 Online:2022-05-28 Published:2022-05-27
  • Contact: Lin -Wang wlhaust@163.com

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摘要： 扭曲椭圆管因结构简单、强化传热及阻垢性能优异，近年来成为被动强化传热领域研究热点之一。虽已有文献对扭曲椭圆管换热器技术进行了综述，但对扭曲椭圆管强化传热特性的归纳和工程应用研究脉络的梳理存在不足，本工作着眼于扭曲椭圆管内外传热及流阻性能研究、扭曲椭圆管换热器研发和工程应用两方面内容，概括了扭曲椭圆管(束)结构、工质、流动状态对传热性能及流阻特性的影响规律；回顾了扭曲椭圆管换热器工程应用案例，总结了有关扭曲椭圆管研究尚待完善之处，并对扭曲椭圆管强化传热研究的发展趋势进行展望，为深化扭曲椭圆管理论研究和工程实践提供指导和参考。

关键词: 扭曲椭圆管, 强化传热, 流动特性, 二次流, 关联式

Abstract: The twisted oval tube has simple structure, excellent heat transfer enhancement and anti-fouling performance, and has become one of the research hotspots in the field of passive heat transfer enhancement. In recent years, researchers have carried out a lot of research on the heat transfer performance of twisted elliptical tubes (bundles) through experiments and numerical simulations. The mechanism of heat transfer enhancement is explained.Although there are reviews on the technology of twisted oval tube exchangers, there are deficiencies in the induction of the heat transfer enhancement characteristics of twisted oval tubes and the analysis of the research clues of the engineering application. This review focuses on the internal and external heat transfer and flow resistance performance of the twisted oval tube, and summarizes the influence of the structure of the twisted oval tube (bundle), working fluid and flow state on the heat transfer performance and flow resistance characteristics. The review also reviews the engineering application cases of twisted oval tube heat exchangers, and outlines the contents to be perfected in the researches on twisted oval tubes, and prospects the development trend of the research on heat transfer intensification of twisted oval tubes. This review is expected to provide guidance and reference for deepening the theoretical research and engineering practice of twisted oval tubes.

Key words: twisted oval tube, heat transfer enhancement, flow characteristics, secondary flow, correlation