高压燃烧室的冒烟测量  

Smoke Measurement in High Pressure Combustor

作　　者：王华芳[1] 刘高恩[1] 林宇震[1] 

机构地区：[1]北京航空航天大学热动力工程研究所,北京100083

出　　处：《燃气涡轮试验与研究》2001年第3期34-37,共4页Gas Turbine Experiment and Research

摘　　要：在单头部主燃烧室试验件上进行的高温高压试验研究中 ,冒烟是研究发动机排放特性的一个参数。为了避免直接加热器所产生的燃气中的冒烟对主燃烧室冒烟测量带来的误差 ,该冒烟测量是在主燃烧室常温下进行的。最后根据试验数据校验与之类似燃烧室冒烟经验模型。经验模型根据GE公司的F10 1发动机燃烧室的冒烟经验模型得出SN8=2 .6 2 +0 .85 3[ln(Ss) ]。在压力范围为 2 .0～ 3.2MPa之内 ,试验数据与经验模型的计算结果吻合较好。但是试验研究发现 ,燃烧室进口空气压力增高 ,冒烟显著增加。因而 ,该模型不能应用到 3.8MPa以上的高压力范围。Smoke is a parameter to investigate engine emission properties in high temperature and pressure tests on single-dome combustor. To avoid error in combustor smoke measurement brought by burned gas from direct heater,measurements were made at a normal temperature. Then an empirical smoking model of a similar combustor was corrected by test data. The empirical model SN8 = 2.62 + 0.853was obtained from the smoking empirical model of GE F101 engine combustor. Test data agreed very well with predicted results from empirical model at a pressure range of 2.0～3.2 MPa. However, it was found a notable increase in smoking with the increase of air pressure at combustor inlet in the test. So this model is not applicable when pressure is above 3.8 MPa.

关 键 词：燃烧室 冒烟测量 高温高压试验 发动机 排放特性 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]