火焰稳定器对直喷式燃烧室污染物生成影响的研究

Experimental Study on Influences of Flame Stabilizers on Formation of Exhaust Emissions from LDI Combustion

研究了不同火焰稳定器对直接喷射式燃烧室燃烧和污染物排放的影响.实验中所用的火焰稳定器为30°、45°和60°旋流角的旋流器和三种开孔率不同的多孔板.采用Testo360燃气测试仪测量不同工况条件下相应的燃烧室出口温度,以及NOx和CO生成量.通过对采用不同火焰稳定器燃烧室所得到的燃烧与排放性能的分析比较,得到了多孔板的开孔率和旋流器的旋流角度对污染物排放的影响结果.

The combustion and emissions of a lean direct injection(LDI) combustor with different stabilizers were experimentally investigated. The stabilizers in experiments are three swirlers with 30°, 45°and 60° fan angle and three kinds of perforated plate with different open hole ratios. The temperature profile, the NOx and CO emission levels at the exit plane of the combustor were obtained at different gaseous fuel jets and main airflow by using Testo360 gas analyzer. Comparing the experimental results of combustion and pollutant emission from the combustor with different flame stabilizers, the influences of flame stabilizers on combustion and pollutant emission were examined. 