东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (4): 536-541.DOI: 10.12068/j.issn.1005-3026.2017.04.017

• 机械工程 • 上一篇    下一篇

微波瓣燃烧器的燃烧特性

谢翌， 钟晨， 阮登芳， 刘坤   

  1. (重庆大学 汽车工程学院， 重庆400044)
  • 收稿日期:2015-11-11 修回日期:2015-11-11 出版日期:2017-04-15 发布日期:2017-04-11
  • 通讯作者: 谢翌
  • 作者简介:谢翌(1983-)，男，重庆人，重庆大学副教授，博士.
  • 基金资助:
    国家自然科学基金青年基金资助项目(51405045);重庆市基础与前沿研究计划项目(cstc2013jcyjA00020).

Combustion Characteristics of Micro-lobed Burner

XIE Yi， ZHONG Chen， RUAN Deng-fang， LIU Kun   

  1. School of Automotive Engineering， Chongqing University， Chongqing 400044， China.
  • Received:2015-11-11 Revised:2015-11-11 Online:2017-04-15 Published:2017-04-11
  • Contact: XIE Yi
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摘要： 采用三维仿真方法对微波瓣燃烧器、环形圆柱燃烧器的流动及燃烧情况进行了模拟，研究了甲烷与氧气的不同当量比对燃烧器燃烧特性的影响规律.结果表明:微波瓣燃烧器中流向涡的存在及甲烷同氧气混合面积的增加有助于燃料同氧化剂的混合，从而强化燃烧，提高燃烧效率及燃烧温度.此外，虽然微波瓣燃烧器的燃烧温度、燃烧效率在不同当量比下始终高于环形圆柱燃烧器，但随着当量比的减小，两者在相同位置处气体的温差及燃烧效率之差随之减少.

关键词: 微波瓣燃烧器, 环形圆柱燃烧器, 当量比, 温度分布, 燃烧效率

Abstract: A 3D simulation method was used to simulate the flow and combustion of micro-lobed burner and splitter burner， and the influence law of equivalence ratio between methane and oxygen on combustion characteristics was studied. The results showed that the streamwise vortices and augmentation in the mixing area between methane and oxygen could improve the mixing between fuel and oxidant， which can thus strengthen combustion to increase the combustion efficiency and temperature. Besides， although the combustion efficiency and temperature of micro-lobed burner are higher than that of the splitter burner， the combustion temperature and efficiency differences between these two burners at the same position go down as equivalence ratio decreases.

Key words: micro-lobed burner, splitter burner, equivalence ratio, temperature distribution, combustion efficiency

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