中等尺度燃烧器阵列性能分析

2019/12/16   下载量： 0 次

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应用领域 能源/新能源
检测样本 其他
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采用LaVision公司的PLIF平面激光诱导荧光火焰自由基分析测量系统，对中等尺度燃烧器阵列燃烧是产生的甲醛，CH，OH等自由基浓度的空间分布进行了测量研究。

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Combustion characteristics of a mesoscale burner array have been studied using several diagnostic and analysis techniques. The array was specifically configured to enhance overall combustion stability, partic- ularly under lean operating conditions, by promoting flame to flame interactions between neighboring elements. The 4 ×4 burner array demonstrated stable operations up to 3 kW and is designed to flexibly accommodate wide range of combustion power outputs by scaling the element dimensions or array size. Flame stabilizing mechanisms were experimentally examined using OH, CH, and CH 2 O planar laser in- duced fluorescence (PLIF) of premixed CH 4 and air flames at operating equivalence ratios between 0.7 and 1.2. A quantitative measure of flame stability was obtained through dynamic mode decomposition (DMD) analysis of high speed OH-PLIF images. Lean blow offlimits and emissions were also character- ized across a wider range of equivalence ratios to better understand mesoscale burner array combustion characteristics. Lastly, combustion experiments using liquid fuel, pentane (C 5 H 12 ), were also carried out. Marked improvement in combustion stability was observed compared to a single swirl-stabilized flame of similar power output. Results indicate mesoscale burner arrays can potentially serve as flexible and scalable next generation propulsion and power generation systems.

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北京欧兰科技发展有限公司
金牌会员 丨 第17年
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