Research On Detection And Evaluation Of Air Pollutants Emission From Civil Aircraft

Aviation is an important mode of transport that supports socio-economic operations,and civil aircraft is the most important way to undertake air transportation.In the past ten years,the volume of air traffic and airports have been increasing.Therefore,the emissions of civil aircraft into the air The content of pollutants is constantly increasing,causing the problem of air pollution near the airport to gradually increase.The problem of air pollution near the airport requires effective prevention measures,and the main source of air pollution near the airport is the amount of pollutants emitted by civil aircraft during the take-off and landing phase of the airport.Therefore,accurate calculation of civil aircraft emissions is an important part of studying the impact of aircraft on climate change.China’s research on the detection and assessment of air pollutant emissions from civil aircraft has just begun,and carrying out related work is of great significance for evaluating the advantages and disadvantages of pollutant emission reduction measures,improving the air quality of airports,and promoting the development of "green aviation".The main research contents are as follows:(1)Through the analysis of the formation mechanism of pollutants emitted by civil aircraft engines,explain how the exhaust of civil aircraft can cause harm to the human body’s mechanical structure and the atmospheric environment,summarize the domestic and foreign emission standards for civil aircraft engines,and evaluate the emissions of civil aircraft.Provide a reference whether the standard meets airworthiness requirements.(2)Design a simple and flexible emission test system for the aircraft by assembling the detection instrument to conduct emission testing on the aircraft,and design a reasonable plan for the aircraft’s entire aircraft emission test.Test the actual emissions of two airplanes under the thrust and time of each working condition under the ground simulated LTO cycle,collect the emissions data of the airplanes under actual operating conditions,and compare the measured engine emission factors with the International Civil Aviation Organization(ICAO)emissions database The difference in emission factors provides a correction factor for accurate assessment of civil aircraft emissions.(3)Based on the influencing factors of calculation of civil aircraft engine emissions,revised the calculation model of civil aircraft emissions,based on flight flight data,engine emissions database data,and model and engine matching data,the emission inventory of civil airports in the seven regions of China The spatial and temporal distribution and hourly distribution maps of emission inventories were drawn using Air GIS software,which provided constructive suggestions for regional air pollution prevention work.(4)In response to the current gap in the use of software to calculate emissions by China’s environmental protection departments,a civil aircraft pollutant emission research platform system has been developed and designed.It is based on foreign advanced aviation emissions calculation algorithms to improve the design and application of civil aircraft emissions.Computing software system.The role of the system can realize the emissions of a single flight during the take-off and landing phase of any airport operation records,and can also calculate the total emissions of tens of thousands of data flights.It can provide a programmatic application for the formulation of emissions orders and can also change different parameters Calculating the emissions provides a reference for assessing the airport’s business strategy plan and preventing and controlling the airport’s environmental pollution.