化工学报 ›› 2016, Vol. 67 ›› Issue (10): 4072-4079.DOI: 10.11949/j.issn.0438-1157.20160485

• 流体力学与传递现象 • 上一篇    下一篇

腰槽开孔矩形翼涡流发生器纳米氧化镁颗粒污垢特性

徐志明, 熊骞, 耿晓娅, 王景涛, 韩志敏   

  1. 东北电力大学能源与动力工程学院, 吉林省 吉林市 132012
  • 收稿日期:2016-04-14 修回日期:2016-06-03 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: 徐志明
  • 基金资助:

    国家自然科学基金项目(51476025)。

Fouling characteristics of magnesia nanoparticles on rectangular wing vortex generator with hole punched at waist groove

XU Zhiming, XIONG Qian, GENG Xiaoya, WANG Jingtao, HAN Zhimin   

  1. School of Energy and Power Engineering, Northeast Dianli University, Jilin 132012, Jilin, China
  • Received:2016-04-14 Revised:2016-06-03 Online:2016-10-05 Published:2016-10-05
  • Supported by:

    supported by the National Natural Science Foundation of China (51476025).

摘要:

为了探究开孔涡流发生器颗粒污垢机制,实验研究了腰槽开孔矩形翼涡流发生器纳米氧化镁颗粒的污垢特性,考察了入口温度、浓度、流速、涡流发生器纵向间距以及不同攻角等参数污垢特性的影响。结果表明:腰槽开孔矩形翼涡流发生器具有较好的抑垢特性,抑垢能力随入口温度降低、浓度降低、流速增加以及纵向间距减小而增强。涡流发生器60°攻角布置下的抑垢能力最强。

关键词: 腰槽开孔矩形翼涡流发生器, 氧化镁, 污垢特性

Abstract:

In order to explore fouling mechanism of nanoparticles in hole-punched vortex generator, magnesia nanoparticles were used experimentally in rectangular wing vortex generator with hole-punched at waist groove, which factors of inlet temperature, concentration, flow velocity, longitudinal space and attacking angle of vortex generator were studied. The experimental results showed good anti-fouling performance of the waist-groove-punched rectangular wing vortex generator and its significant dependence on operating conditions. High flow velocity, low magnesia particle concentration, low inlet temperature and short longitudinal space could enhance anti-fouling capability. The best anti-fouling was at the attacking angle of 60°.

Key words: waist groove punched rectangular wing vortex generator, magnesia, fouling characteristics

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