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介绍了自行研制的光纤燃烧传感器配合OMA4光通道分析系统,在国内首次对柴油机的着火时刻火焰光谱进行了测量和分析。实验表明:燃烧过程中产生大量自由基,波长主要集中在紫外区和一部分可见光区;碳粒子的连续热辐射谱对测量结果有很大的影响。并验证了Fenimore关于碳氢燃料快速型NO机理。
Introduced the self - developed optical fiber combustion sensor with OMA4 optical channel analysis system, the first time in China for the ignition flame time of the diesel engine was measured and analyzed. Experiments show that a large number of free radicals are generated during the combustion process, and the wavelength is mainly concentrated in the ultraviolet region and a part of the visible region. The continuous heat radiation spectrum of carbon particles has a great influence on the measurement results. And verified Fenimore’s rapid NO mechanism of hydrocarbon fuel.