进风角度对椭圆管翅式换热器传热性能影响

唐凌虹; 杜雪平; 曾敏

doi:10.11949/0438-1157.20190527

您当前的位置：

首页 >

文章列表页 >

进风角度对椭圆管翅式换热器传热性能影响

流体力学与传递现象 | 更新时间：2020-06-24

- 进风角度对椭圆管翅式换热器传热性能影响
- Investigation of air inlet angle influence on air-side heat transfer performance of finned oval tube heat exchanger
- 化工学报 2019年70卷第S2期页码：138-145
- 作者机构：
  
  1.西安石油大学机械工程学院，陕西西安 710065
  2.中国矿业大学电力与动力工程学院，江苏徐州 221116
  3.西安交通大学热流科学与工程教育部重点实验室，陕西西安 710049
- 作者简介：
  
  唐凌虹（1979—），男，博士，副教授，lhtang97@163.com
- 基金信息：
  
  国家自然科学基金项目(51776157);西安石油大学青年科研创新团队项目(2019QNKYCXTD10)
- DOI：10.11949/0438-1157.20190527
  中图分类号： TK 124
- 收稿：2019-05-19，
  
  修回：2019-05-23，
  
  纸质出版：2019-09-05
- 稿件说明：
移动端阅览
唐凌虹, 杜雪平, 曾敏. 进风角度对椭圆管翅式换热器传热性能影响[J]. 化工学报, 2019, 70(S2): 138-145

TANG Linghong, DU Xueping, ZENG Min. Investigation of air inlet angle influence on air-side heat transfer performance of finned oval tube heat exchanger[J]. CIESC Journal, 2019, 70(S2): 138-145
唐凌虹, 杜雪平, 曾敏. 进风角度对椭圆管翅式换热器传热性能影响[J]. 化工学报, 2019, 70(S2): 138-145 DOI： 10.11949/0438-1157.20190527.

TANG Linghong, DU Xueping, ZENG Min. Investigation of air inlet angle influence on air-side heat transfer performance of finned oval tube heat exchanger[J]. CIESC Journal, 2019, 70(S2): 138-145 DOI： 10.11949/0438-1157.20190527.

摘要

对两排椭圆管翅式换热器实验元件在不同进风角度下（30°、45°、60°和90°）的换热性能进行了实验研究，结果表明，在测试的迎风速度范围内随着进风角度的减小换热器换热性能减弱，并给出了测试工况范围内的换热性能经验关联式；对不同进风角度下空气侧换热性能进行了数值计算，与实验结果进行对比，符合良好；最后对不同进风角度下换热器内不同通道内空气平均速度的分布进行了研究，解释了换热性能差异的原因，为相应的工程应用提供理论参考。

Abstract

Heat transfer performance of a finned oval tube heat exchanger with various air inlet angles (30°

45°

60° and 90°

respectively) were experimentally investigated in this study. Experimental results showed that heat transfer performance decreased with decreasing air inlet angle

and the experimental correlation of the air-side Nusselt number was obtained in the studied range of Reynolds numbers and air inlet angles. Heat transfer performance of various air inlet angles was simulated by using CFD software Ansys Fluent

and the simulated results agreed well with the experimental results. The numerical results indicated that with the decrease of air inlet angle

the uniformity of air velocity distribution in

-direction became worse

therefore

the comprehensive heat transfer performance was worse than that of the case with uniform flow distribution.

关键词

Keywords

references

卜永东 , 杨立军 , 杜小泽 , 等 . 电站空冷技术 [J]. 现代电力 , 2013 , 30 ( 3 ): 69 - 79 .

Bu Y D , Yang L J , Du X Z , et al . Review of dry cooling technologies in power plants [J]. Modern Electric Power , 2013 , 30 ( 3 ): 69 - 79 .

Kim N H , Lee K J , Jeong Y B . Airside performance of oval tube heat exchangers having sine wave fins under wet condition [J]. Applied Thermal Engineering , 2014 , 66 ( 1/2 ): 580 - 589 .

Gholami A , Wahid M A , Mohammed H A . Thermal–hydraulic performance of fin-and-oval tube compact heat exchangers with innovative design of corrugated fin patterns [J]. International Journal of Heat & Mass Transfer , 2017 , 106 : 573 - 592 .

Diaz D , Valencia A . Heat transfer in an oval tube heat exchanger with different kinds of longitudinal vortex generators [J]. Heat Transfer Research , 2017 , 48 ( 18 ): 1707 - 1725 .

Zhao X , Tang G , Shi Y , et al . Experimental study of heat transfer and pressure drop for H-type finned oval tube with longitudinal vortex generators and dimples under flue gas [J]. Heat Transfer Engineering , 2018 , 39 ( 7/8 ): 608 - 616 .

Gan L , Lu X , Wang Q . Experimental and theoretical study on hydrodynamic characteristics of tapered fluidized beds [J]. Advanced Powder Technology , 2014 , 25 ( 3 ): 824 - 831 .

杨涛 , 袁益超 . 管束结构对开缝翅片椭圆管换热器性能的影响 [J]. 化工学报 , 2018 , 69 ( 4 ): 1365 - 1373 .

Yang T , Yuan Y C . Effects of tube bundle structure on heat transfer and resistance characteristics of slit finned elliptical tube heat exchangers [J]. CIESC Journal , 2018 , 69 ( 4 ): 1365 - 1373 .

赵兰萍 , 杨志刚 . 管间距对矩形翅片椭圆管换热管束性能的影响 [J]. 同济大学学报(自然科学版) , 2016 , 44 ( 1 ): 150 - 154 .

Zhao L P , Yang Z G . Effect of tube pitches on performance of rectangular finned elliptical tube bundles [J]. Journal of Tongji University (Natural Science) , 2016 , 44 ( 1 ): 150 - 154 .

郭永红 , 杜小泽 , 杨晓茹 , 等 . 间接空冷机组空冷塔塔群内空气流动及传热性能研究 [J]. 热能动力工程 , 2018 , ( 1 ): 33 - 41 .

Guo Y H , Du X Z , Yang X R , et al . Study of the air flow and heat transfer performance inside an air cooling tower group of an indirect air cooling unit [J]. Journal of Engineering for Thermal Energy and Power , 2018 , ( 1 ): 33 - 41 .

陈学宏 , 赵元宾 , 孙奉仲 . 翅片散热管束流动传热性能对进风角度敏感性的研究 [J]. 电站系统工程 , 2017 , ( 4 ): 13 - 16 .

Chen X H , Zhao Y B , Sun F Z . Study on sensitivity of flow and heat transfer performance of finned tubes bundles to air intake [J]. Power System Engineering , 2017 , ( 4 ): 13 - 16 .

王为术 , 张雨飞 , 常娜娜 . 600 MW火电机组间接空冷塔流动换热特性数值研究 [J]. 郑州大学学报(工学版) , 2014 , 35 ( 1 ): 51 - 54 .

Wang W S , Zhang Y F , Chang N N . Numerical simulation on the flow field and heat transfer characteristics of indirect air-cooling tower in 600MW supercritical thermal power unit [J]. Journal of Zhengzhou University (Engineering Science) , 2014 , 35 ( 1 ): 51 - 54 .

Liu Z , Li H , Shi L , et al . Numerical study of the air inlet angle influence on the air-side performance of plate-fin heat exchangers [J]. Applied Thermal Engineering , 2015 , 89 : 356 - 364 .

唐凌虹 , 杜雪平 , 曾敏 . 进风角度对椭圆管翅式换热器流动性能的影响 [J]. 动力工程学报 , 2017 , 37 ( 8 ): 649 - 654 .

Tang L H , Du X P , Zeng M . Influence of air inlet angle on flow characteristics of a finned oval-tube heat exchanger [J]. Journal of Chinese Society of Power Engineering , 2017 , 37 ( 8 ): 649 - 654 .

史美中 , 王中铮 . 热交换器原理与设计 [M]. 南京 : 东南大学出版社 , 2009 .

Shi M Z , Wang Z Z . Principle of Heat Exchangers and Design [M]. Nanjing : Southeast University Press , 2009 .

杨世铭 , 陶文铨 . 传热学 [M]. 北京 : 高等教育出版社 , 2006 .

Yang S M , Tao W Q . Heat Transfer [M]. Beijing : Higher Education Press , 2006 .

Gnielinski V . New equations for heat and mass transfer in turbulent pipe and channel flow [J]. International Chemical Engineering , 1976 , 16 ( 2 ): 359 - 368 .

Versteeg H K , Malalasekera W . An Introduction to Computational Fluid Dynamics: The Finite Volume Method [M]. Pearson Education , 2007 .

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

固体蓄冷填充床性能提升及保冷特性研究

用于求解背表面恒温导热反问题的标定方法和实验验证

内管移动对卧式管壳相变储热器储放热性能影响的实验研究

同向双螺杆传热系数计算模型的分析与验证

翅片式椭圆套管蒸发式冷凝器传热传质性能实验研究