中文摘要：

通过实验研究了不同管内径及不同散热条件对火焰结构参数的影响。考察了暴露在静止空气中的陶瓷管长度变化对火焰结构的影响。在同一乙醇流量下，火焰的高度随着露出长度的减少而增加。另外。在电场作用下对乙醇扩散小火焰的燃烧特性进行研究。结果发现：当采用负电场时，会使火焰高度降低，在某个电场强度范围内还会引起析碳增多；当采用正电场时，会使火焰高度增加。

英文摘要：

The structure of flame which is affected by different internal diameter and different radiating condition was studied experimentally. It was found that the change of the length of the ceramic tube exposed in the air affect the structure of the flame. When the flow was fixed, the height of flame increased when the length exposed was decreased. The study of the small jet diffusion flame of alcohol in the electric field indicate that the positive electric field compress the flame, the electric-field intensity between some ranges causes more emission carbon; However, the negative electric field draw the flame out, but strong electric field will narrow the flame.