基于飞行航迹数据的飞机发动机排放量估算方法

Approach to estimation of fuel-oil consumption and emission of pollutions based on air traffic trajectory data

针对目前缺乏科学、定量的评价技术和手段研究空管运行技术对飞机油耗和污染物排放量影响的问题,建立了基于四维航迹数据的飞机污染物排放量估算模型,采用Visual Studio C#开发了民用飞机油耗及污染物排放量估算软件,能够根据二次雷达记录数据、ADS-B采集数据和管制模拟机记录数据来进行油耗及排放量计算,并以某管制单位雷达记录数据为例进行了计算分析。结果表明,管制员的技能差异对民航节能减排有重要影响;该模型可用来量化分析管制运行新技术及管制员技能差异对民航节能减排的影响,确保在飞行安全及管制容量的前提下更好地兼顾绿色运行的要求,提升空中交通运行质量。

This paper intends to choose and find methods for assessment and determination of the fuel consumption and pollutant emission situation in the aircraft engines based on the 4-D air traffic trajectory recorded data.And,for the said purpose,we have first of all built up a corresponding model of the aircraft performance parameters to calculate and work out the fuel flow current,the aircraft mass,the engine thrust inclose relation with the Mach number and aero forces under the given track data.As is known,the air traffic operational efficiency has a critical influence on the energy conservation and pollutant reduction.Otherwise,it would be difficult to study and work out the impact of the ATC operation technology on the aircraft fuel consumption and pollutant emission.At the same time,it is also necessary to build up an aircraft pollution emission model to calculate and work out the actual fuel consumption and pollution emission in the different flight stages.And,so,we have put forward the concept of equivalent carbon dioxide to evaluate the impact of the flight parameters on the different pollutants,and established the equivalent conversion mechanism between the different pollutants to achieve the equivalence conversion and normalization.Furthermore,we have also developed a software known as the Visual Studio C#environment to calculate and work out the fuel consumption and pollutants data based on the recorded secondary radar track data of the ADS-B data Radar and those from the radar control simulators.The results of the above study of ours show that the emission of CO2 should be an absolutely dominant data in all kinds of pollutants,but in terms of cost or its impact,the actual emission of CO2 accounts only for about 1/3 of the equivalent carbon dioxide.What is more,the air traffic operation should also have an important impact on the aircraft fuel consumption and pollutant emission,for,the personal skills of the pilot may also have significant influence on the fuel consumption and emission.Therefore,the constructed model of ours and software we have developed in the given paper can not only help to reduce fuel conservation and pollutant reduction quantitatively through the analysis of the impact of the air traffic novelty technology on the fuel conservation and pollutants reduction in civil aviation,but can also be adopted to evaluate the efficiency of the different air traffic control workers and help them to keep better balance in deciding the flight safety,air space capability,and green operation.