摘要
非挥发性颗粒物是国际民航组织航空环境保护委员会目前研究的重点,为了定量研究航空器起降阶段排放的非挥发性颗粒物,该文在SCOPE11方法的基础上,提出一种有关燃油流量修正的FF-MCM方法,计算航空器实际运行工况下nvPM排放量。针对同一机型,使用2种计算模型,结合燃油流量、发烟指数等数据,计算非挥发性颗粒物排放量,并进行对比分析。结果表明:2种计算模型计算结果有一定差异,造成精度不同的主要原因是SCOPE11方法采用的是发烟指数直接计算质量浓度指数进一步转化为质量排放指数,未考虑实际因素进而造成了差异;而FF-MCM方法使用飞机性能参数和大气环境参数,使得计算结果更加贴近实际。
Non-volatile particulate matter is the current focus of the ICAO CAEP.In order to quantitatively study the non-volatile particulate matter emitted by the aircraft during landing and takeoff phase,based on the SCOPE11 method,a FF-MCM method related to fuel flow correction is proposed to calculate nvPM emissions under actual aircraft operating conditions.Finally,for the same model,using two calculation models,combined with fuel flow,smoke index and other data,the emission of non-volatile particulate matter is calculated,and a comparative analysis is conducted.The results show that there are certain differences in the calculation results of the two calculation models.The main reason for the difference in accuracy is that the SCOPE11 method uses the smoke index to directly calculate the mass concentration index and further converts it into the mass emission index,which does not consider actual factors and causes the difference;and the FF-MCM method uses aircraft performance parameters and atmospheric environment parameters to make the calculation results closer to reality.
作者
杨晓军
于浩洋
常嘉文
YANG Xiaojun;YU Haoyang;CHANG Jiawen(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2021年第7期70-75,共6页
Environmental Science & Technology
基金
中国民航大学中央高校基本科研业务费项目(3122019187)
