Nd:YAG激光器三倍频紫外输出激发燃烧过程产生的甲醛的激光诱导荧光研究

2017/09/13   下载量： 3 次

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应用领域 汽车及零部件
检测样本 汽车排放与节能
检测项目 理化分析>其他
参考标准 暂无

采用LaVision公司的增强型CCD相机对燃烧过程中的重要中间产物甲醛的浓度分布进行了定量测量。采用了LaVision公司独特的激光诱导荧光燃烧火焰分析测试系统Flame-Master

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Formaldehyde (CH2O) is an important intermediate species in combustion processes and it can through laserinduced
fluorescence measurements be used for instantaneous flame front detection. The present study has focussed on
the use of the third harmonic of a Nd:YAG laser at 355 nm as excitation wavelength for formaldehyde, and different
dimethyl ether (C2H6O) flames were used as sources of formaldehyde in the experiments. The investigations included
studies of the overlap between the laser profile and the absorption lines of formaldehyde, saturation effects and the
potential occurrence of laser-induced photochemistry. The technique was applied for detection of formaldehyde in an
internal combustion engine operated both as a spark ignition engine and as a homogenous charge compression ignition
engine.

上一篇 在一个双稳湍流涡旋火焰中，对间歇性动态的时间-频率定位
下一篇 采用激光诱导荧光方法测量火花塞引燃汽油发动机燃烧室表面燃料薄膜的厚度

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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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