实验室条件下航空发动机冒烟问题研究

Study on Smoking of Aero-engine under the Laboratory Condition

根据航空技术的发展趋势,航空燃气轮机高推比的要求愈加迫切,因此,要求燃烧室具有很高的工作压力和温度,与此同时,发动机碳化合物排放因其危害的问题特别突出。发动机冒烟一方面是引起环境恶化的重要因素,另外对于军用飞机来讲,发动机冒烟会使飞机隐蔽性受到极大威胁,因此,深入研究发动机冒烟问题成为目前迫切解决的重要课题。目前,世界上对航空发动机冒烟的问题进行了广泛的关注,冒烟问题已经成为航空发动机低污染燃烧技术首先要解决的重点课题之一。本文主要叙述了烟的测量和冒烟问题基本试验规律,并讨论烟浓度的测量方法以及引起冒烟的机理。

According to the development trend of aviation technology,it is very urgent that the aviation combustion turbine need to have the high ratio of driven power. Therefore, the combustion chamber must have very high work pressure and temperature. At the same time, it is very out- standing that the carbon compounds emitted by aero-engine are harmful. Aero-engine smoke is the important factor that causes environmental degradation. On the other hand, aero-engine smoke will impact the concealment of military airplane. At present, aero-engine smoke attracted wide attention,and to reduce aero-engine smoke became an important task for aviation technology. This article mainly described the detecting method and the basic experiment regulations of the aero-engine smoke,discussed the mechanism of aero-engine smoke.