化工进展 ›› 2022, Vol. 41 ›› Issue (11): 5709-5721.DOI: 10.16085/j.issn.1000-6613.2022-0158

• 化工过程与装备 • 上一篇    下一篇

扭带结构影响管内传热与熵产的研究进展

林清宇1,2(), 王祝1, 冯振飞1,2(), 凌彪1, 陈镇1   

  1. 1.广西大学机械工程学院,广西 南宁 530004
    2.广西大学广西石化资源加工及过程强化技术重点实验室,广西 南宁 530004
  • 收稿日期:2022-01-24 修回日期:2022-04-01 出版日期:2022-11-25 发布日期:2022-11-28
  • 通讯作者: 冯振飞
  • 作者简介:林清宇(1969—),女,博士,教授,研究方向为过程设备强化传热技术。E-mail:linqy121@gxu.edu.cn
  • 基金资助:
    国家自然科学基金(22168003);广西石化资源加工及过程强化技术重点实验室主任基金(2018Z011)

Review progress on twisted tape structure for heat transfer and entropy generation in tube

LIN Qingyu1,2(), WANG Zhu1, FENG Zhenfei1,2(), LING Biao1, CHEN Zhen1   

  1. 1.School of Mechanical Engineering, Guangxi University, Nanning 530004, Guangxi, China
    2.Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, Guangxi, China
  • Received:2022-01-24 Revised:2022-04-01 Online:2022-11-25 Published:2022-11-28
  • Contact: FENG Zhenfei

摘要:

随着工业技术不断发展,传统换热管的传热方式已经无法满足高热流密度下的热量输运要求。扭带插入物是一种能够有效提高换热管传热效率的强化传热元件,以其结构简单、加工容易的特点受到了很多学者的关注和研究。管内流体的传热性能及熵产往往作为评价换热管性能的重要参数,因此扭带结构与流动工质对这些参数的影响成为近年来研究的重点。本文主要综述了近十年来不同结构扭带对管内传热与熵产影响的研究进展。首先,将文献中研究的扭带按照几何结构进行分类,阐述和分析了不同类型扭带对换热管的传热、熵产以及综合性能的影响,试图找出几何结构与换热管传热性能以及熵产之间的联系。其次,介绍了扭带与纳米流体复合传热技术的研究进展。最后,归纳了研究人员为达到传热性能最大化以及熵产最小化而建立的传热和熵产模型,并对模型的优缺点进行了评价。

关键词: 扭带, 纳米流体, 强化传热, 综合性能, 熵产

Abstract:

With the continuous development of industrial technology, the heat transfer in traditional heat exchange tubes has been unable to meet the heat transport requirement under high heat flux. Twisted tape insert is a kind of heat transfer enhancement element which can effectively improve the heat transfer efficiency in heat exchange tube. It has been focused and studied widely by many scholars because of its simple structure and easy processing characteristics. The heat transfer performance and entropy production of fluid in the tube are generally used as important parameters to evaluate the performance of heat exchange tube. Therefore, the influences of twisted tape structure and working fluid on these parameters become the focus of research in recent years. This paper mainly reviews the research progress of the effects of different structural twisted tapes on heat transfer and entropy production in tubes in the past decade. Firstly, the twisted tapes used in the literature are classified according to the geometric structure, and the effects of different types of twisted tape on heat transfer, entropy generation and comprehensive performance of heat exchange tubes are expounded and analyzed, trying to find out the relationships between geometric structure and heat transfer performance as well as entropy generation in heat exchange tubes. Secondly, the research progress of composite heat transfer technology with twisted tape and nanofluid is introduced. Finally, the heat transfer and entropy generation models established by researchers to maximize heat transfer performance and minimize entropy generation are summarized, and the advantages and disadvantages of the models are evaluated.

Key words: twisted tape, nanofluids, heat transfer enhancement, comprehensive performance, entropy generation

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