燃油分级对中心分级燃烧室NO_x排放的影响  

Influence of Fuel Stage Proportion on NO_x Emission from Central Stage Combustor

作　　者：刘富强[1] 穆勇[1] 刘存喜[1,2] 毛艳辉[1,2] 杨金虎[1] 徐纲[1] 朱俊强[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]中国科学院研究生院,北京100190

出　　处：《燃烧科学与技术》2013年第3期254-260,共7页Journal of Combustion Science and Technology

基　　金：国际科技合作资助项目(2010DFB70620);国家重点基础研究发展计划(973计划)资助项目(2007CB210109)

摘　　要：对采用燃油中心分级方案的燃烧室NOx排放特性进行了实验研究.在进气流量、进气温度和进气压力一定的情况下,改变值班级和主燃级两级油量的相对大小,采用烟气分析仪在燃烧室出口截面测量NOx和CO的排放.对比分析了值班级燃油量、主燃级燃油量以及两级燃油比例对污染物排放特性的影响.实验结果表明,与主燃级相比,值班级燃油量对NOx排放的影响较大;在总油气比不变的前提下,存在一个最佳燃油比例使得NOx排放最低.The NOx emission in a gas turbine combustor characterized by fuel central stage was researched experimen-tally. The inlet air temperature, pressure and air flow rate were fixed, and the NOx and CO emissions on the exit plane of the combustor were obtained at different fuel ratios of pilot to primary fuel by using gas analyzer. The influ-ences of the amount of pilot fuel and primary fuel on pollution emissions were analyzed and compared. The experi-mental results indicate that pilot fuel shows more noticeable influence on NOx emission than primary fuel. In addition, it is also shown that when the total equivalence ratio remains unchanged, there is an optimal percentage of pilot fuel, under which the NOx emission can reach the minimum.

关 键 词：燃油分级 NOX排放 值班级 主燃级 燃料比例 

分 类 号：V231[航空宇航科学与技术—航空宇航推进理论与工程]