民用航空发动机LTO循环的NOx排放评估  

Evaluation of NOx Emission in LTO Cycle of Civil Aero Engine

作　　者：王胜宇 孙有朝[1] 李龙彪[1] WANG Sheng-yu;SUN You-chao;LI Long-biao(College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]南京航空航天大学民航学院,江苏南京211106

出　　处：《航空计算技术》2020年第4期46-50,共5页Aeronautical Computing Technique

基　　金：国家自然科学基金委员会与中国民用航空总局基金联合项目资助(U1333119);国防基础科研计划项目资助(JCKY2013605B002);上海民用飞机健康监控工程技术研究中心基金项目资助(GCZX-2015-05)。

摘　　要：研究国际适航部门和航空环保组织对航空发动机NOx排放制定的标准,结合相关适航规章要求,参考现役先进的航空发动机的污染排放水平,确定我国某发动机验证机在单次LTO循环中应满足的NOx排放值。通过对比航空发动机NOx排放的三种经验公式评估法的评估精确性,建立该发动机的NOx排放指标评估方法;并用该方法对该发动机在单次LTO循环的NOx排放进行评估,评估结果为NOx特征值为34.117 g/kN,可以满足比CAEP/6低50%的指标要求。By studying the standards set by international airworthiness authorities and aviation environmental protection organizations for aero engine NOx emissions,combined with relevant airworthiness regulations,and referring to the pollution emission levels of advanced aero engines currently in service,the NOx emission value that the engine verification machine should meet in a single LTO cycle was determined.By comparing the evaluation accuracy of three empirical formula evaluation methods for aero engine NOx emissions,the NOx emissions index evaluation method of the engine is established.And this method is used to evaluate the NOx emissions of the engine in a single LTO cycle.The result of the evaluation was that the characteristic value of NOx was 34.117 g/kN,which could meet the index requirement 50% lower than CAEP/6.

关 键 词：CAEP 排放 氮氧化物 评估方法 

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]