...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Structures and performances of laminar impinging multiple premixed LPG-air flames
【24h】

Structures and performances of laminar impinging multiple premixed LPG-air flames

机译：层流撞击多个LPG-空气预混火焰的结构和性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Three different imaging techniques were utilized to study the laminar, impinging, multiple, premixed liquefied petroleum gas (LPG)-air flames for simulating the premixed impinging flames of practical cooking burners. Two line-of-sight observation techniques are introduced, i.e. direct photography of a typical visible flame and the imaging of flame chemiluminescence, whereas the spatially resolved imaging is carried out by means of the OH-PLIF technique as the in situ visualization. Effects of the key parameters of heating height (H/D) and inter-port spacing (S/D_o) on the flame structure and flame interaction are systematically studied and compared. The burner's performances in terms of CO emissions and thermal efficiency are experimentally studied to correlate with the flame structure. Among the three techniques, the OH-PLIF measurement is the most reliable technique to uncover the combustion situation existing in the flames. H/D is a major parameter controlling the multiple flame structure and the corresponding burner's performance, whereas S/D_o has a less degree effect as compared with H/D. The optimum condition is found at H/D - 2.1 and S/D_o = 1.5, where OH-PLIF profiles are well correlated with the corresponding burner's performance. This study results in better understanding of insights into the structure of the multiple premixed impinging flames, which is valuable for further work of designing an efficient, practical cooking burner.
机译：利用三种不同的成像技术来研究层流，撞击，多次预混合的液化石油气（LPG）空气火焰，以模拟实际烹饪炉头的预混合撞击火焰。引入了两种视线观察技术，即典型可见火焰的直接摄影和火焰化学发光的成像，而空间分辨成像则通过OH-PLIF技术进行原位可视化。系统地研究和比较了加热高度（H / D）和端口间距（S / D_o）等关键参数对火焰结构和火焰相互作用的影响。实验研究了燃烧器在CO排放和热效率方面的性能，以与火焰结构相关联。在这三种技术中，OH-PLIF测量是揭示火焰中存在的燃烧情况的最可靠技术。 H / D是控制多重火焰结构和相应燃烧器性能的主要参数，而S / D_o与H / D相比，程度影响较小。最佳条件在H / D-2.1和S / D_o = 1.5处找到，其中OH-PLIF曲线与相应燃烧器的性能密切相关。这项研究可以更好地了解多个预混撞击火焰的结构，这对于设计高效，实用的烹饪炉灶的进一步工作非常有价值。

著录项

  • 来源
    《Fuel》 |2013年第10期|254-262|共9页
  • 作者

    U. Makmool; S. Jugjai; S. Tia;

  • 作者单位

    The joint Graduate School of Energy and Environment (JCSEE), King Mongkut's University of Technology Thonburi, 126 Pracha Uthit Road, Bang Mod, Thung Khru, Bangkok 10140, Thailand;

    Combustion and Engine Research Laboratory (CERL), Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, 126 Pracha Uthit Road, Bang Mod, Thung Khru, Bangkok 10140, Thailand;

    Department of Chemical Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, 126 Pracha Uthit Road, Bang Mod, Thung Khru, Bangkok 10140, Thailand;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Impinging premixed flame; Flame structure; Flame interaction; OH PLIF;

    机译：撞击预混火焰;火焰结构;火焰相互作用OH PLIF;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号