摘要
为了定量地分析航空发动机排放的颗粒物对机场周边空气质量的影响,通过对航空发动机排放的颗粒物进行分析,以国际民航组织提出的一阶近似方法为基础,分别计算得到各类颗粒物的排放指数,结合航空发动机在着陆和起飞循环各阶段中的燃油流量和工作时间,建立了完整的基于着陆和起飞循环的发动机颗粒物排放计算方法。以GE90-94B发动机为例,采用该方法可计算得到发动机在LTO循环中起飞阶段的颗粒物排放质量为352.079 mg,爬升阶段的颗粒物排放质量为456.577 mg,进近阶段的颗粒物排放质量为321.194 mg,滑行或地面慢车阶段的颗粒物排放质量为785.015 mg,总的颗粒物排放质量为1 914.865 mg。研究表明,该方法可以计算得到航空发动机在着陆和起飞循环中排放的颗粒物质量。
The given paper attempts to introduce a renovated method for calculating the particulate matter emissions from the aero-engine based on LTO cycle and its application. We have developed such a method in hoping to analyze the impact of the particulate matter emissions from the aero-engine on the air quality around the airport quantitatively. For the given purpose,we have made an investigation and analysis of the particulate matter emissions from the aero-engine and calculated the emissions index of all the particulate matter emissions respectively in the paper. As a result,we have established a comprehensive method for calculating the mass particulate matter emissions from the aero-engine based on the landing and take-off cycle based on the first-order approximation approach proposed by the International Civil Aviation Organization. Taking GE90- 94 B engine for example,we have adopted the method we have developed and worked out the total mass of particulate matter emissions at about 352. 079 mg for the taking-off stage in a landing and taking-off cycle,whereas456. 577 mg,321. 194 mg,and 785. 015 mg for the climbing,approaching and taxi-or-idling stage of LTO cycle,correspondingly. And,summing up,we have also found out that the total mass of particulate matter emissions from the aero-engine in the whole landing and taking-off cycle may account for 1 914. 865 mg. According to the sample study experience,it can predict the total mass of particulate matter emissions from the aero-engine in the landing and take-off cycle. Thus,the results of our calculation can also be taken as a reference basis for assessing the impacts of the aero-engine particulate matter emissions on the air quality of the airport surroundings. At the same time,it can also be taken as a corresponding reference for the state to establish a certificate standard for calculating the aero-engine particulate matter emission.
出处
《安全与环境学报》
CAS
CSCD
北大核心
2016年第2期246-249,共4页
Journal of Safety and Environment
基金
中央高校基本科研业务费项目(3122015D011)
关键词
环境工程学
颗粒物
空气质量
航空发动机
着陆起飞循环
排放指数
environmental engineering
particulate matter
air quality
aero-engine
landing and take-off cycle
emissions index
