化工进展 ›› 2020, Vol. 39 ›› Issue (7): 2521-2533.DOI: 10.16085/j.issn.1000-6613.2019-1597

• 特约评述 • 上一篇    下一篇

螺旋通道内流动沸腾传热研究进展

林清宇1,2(), 吴佩霖1, 冯振飞1,2(), 艾鑫1, 黄魁3, 李欢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
    3.广西大学资源环境与材料学院,广西 南宁 530004
  • 出版日期:2020-07-05 发布日期:2020-07-10
  • 通讯作者: 冯振飞
  • 作者简介:林清宇(1969—),女,博士,教授,研究方向为换热设备及压力容器技术。E-mail:linqy121@gxu.edu.cn
  • 基金资助:
    国家自然科学基金(21767003);广西自然科学基金(2014GXNSFBA118051);广西石化资源加工及过程强化技术重点实验室主任基金(2019Z012);广西高校中青年教师基础能力提升项目(2019KY0011)

Research progresses of boiling heat transfer in helical channels

Qingyu LIN1,2(), Peilin WU1, Zhenfei FENG1,2(), Xin AI1, Kui HUANG3, Huan LI1   

  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
    3.School of Resources, Environment and Materials, Guangxi University, Nanning 530004, Guangxi, China
  • Online:2020-07-05 Published:2020-07-10
  • Contact: Zhenfei FENG

摘要:

螺旋通道因其优越的传热性能在强化传热领域有着重要的应用。近年来,高热流密度下设备的散热问题严重制约着先进技术的高速发展,传统螺旋通道单相强化传热技术已难以满足如此高的散热要求。由此,学者们开始探索以螺旋通道和流动沸腾传热相结合的复合强化传热技术。但由于螺旋通道特有的结构导致管内工质会受离心力的影响产生二次流,使得流动沸腾的情况较直通道更复杂,因此许多学者研究螺旋通道流动沸腾传热得出的结论并不一致。本文主要综述了近年来常规和微细尺度螺旋通道内流动沸腾的研究进展,阐述和分析了质量流率、干度、压力等参数对螺旋通道传热系数及临界工况的影响。指出了实验工况及螺旋通道结构的不同可能是导致结果存在分歧的主要原因,重点归纳了研究者根据实验结果拟合得到的流动沸腾传热实验关联式,并对经典直通道及螺旋通道沸腾传热关联式用于预测螺旋通道沸腾传热系数时的优缺点给予评价,指出今后螺旋通道内流动沸腾流传热的研究方向。

关键词: 传热, 气液两相流, 汽化, 螺旋通道

Abstract:

Helical channel heat exchangers have important applications in heat transfer enhancement field because of its superior heat transfer performance. In recent years, the heat dissipation of equipment under high heat flux has seriously restricted the rapid development of advanced technology. Traditional single-phase heat transfer enhancement technology in helical channel is difficult to meet such high requirements of heat dissipation. Therefore, scholars began to explore the combination of helical channel and flow boiling heat transfer to enhance heat transfer. Boiling heat transfer in helical channel is different from straight channel due to the effect of the centripetal forces that create secondary flows. So boiling heat transfer in helical channel is more complicated than that in straight channel. Moreover, a number of conclusions on boiling heat transfer in helical channel are still not conclusive. In order to summarize the research progress of boiling heat transfer in helical channels, the effect of mass flux, vapor quality, heat flux, system pressure on the heat transfer performance in macro- and mini-scale helical channels were presented. It is pointed out that the experimental conditions and the structures of helical channel may be the main reasons for the divergence of results. Different correlations for straight channel and helical channel were compared in the prediction of helical channel heat transfer coefficient. In addition, the enhancement prospect of helical channels and further research on boiling heat transfer of helical channels were presented.

Key words: heat transfer, gas-liquid flow, vaporization, helical channel

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn