Evaluation of LTO cycle emissions from aircraft in China′s Civil Aviation Airports
Evaluation of LTO cycle emissions from aircraft in China′s Civil Aviation Airports
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发表时间：
2008
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通讯作者：
Yang Junli
中科院分区：
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作者：
Yang Junli
基于国际民航组织（ICAO）标准的着陆和起飞（LTO）循环以及其发动机排放数据库，建立了民用航空机场飞机LTO循环排放的计算模型。该计算采用了中国民航的机队数据和飞行数据。计算了123个机场一周的飞机LTO排放（碳氢化合物、一氧化碳、氮氧化物、二氧化硫），并建立了排放与LTO循环次数之间的函数关系。据估计，2002年飞机的LTO排放总量为24680.54吨，2003年为24701.3吨，2004年为31084.55吨，2005年为35633.84吨，2006年为40645.55吨。2006年，碳氢化合物、一氧化碳、氮氧化物、二氧化硫的年度LTO循环排放量分别为1514.48吨、14341.16吨、23095.19吨和1694.71吨。123个机场中的20个产生了总排放量的68.25%。对2003年和2004年7个民航空域飞机的LTO循环排放分布进行了调查。在一个典型的LTO循环中，包括进近、滑行、起飞和爬升，大约一半的排放量产生于滑行阶段，并且估算表明滑行时间减少4分钟会使LTO排放减少6%。
A calculation model of Landing and Take-Off (LTO) cycle emissions from aircraft in civil aviation airports was developed based on the ICAO′s (International Civil Aviation Organization) standard LTO cycle and its engine emission data bank. The calculation used the fleet data and the flight data from civil aviation in China. Aircraft LTO emissions (HC, CO, NOx, SO2) were calculated for one week at 123 airports and functional relationships between emissions and number of LTO cycles were developed. Total LTO emission from the aircraft is estimated to be 24680.54 t in 2002, 24701.3 t in 2003, 31084.55 t in 2004, 35633.84 t in 2005 and 40645.55 t in 2006. In 2006, the annual LTO cycle emissions of HC, CO, NOx, SO2 were 1514.48 t, 14341.16 t, 23095.19 t and 1694.71 t, respectively. Twenty of the 123 airports produced 68.25% of the total emissions. The distribution of LTO cycle emissions from aircraft in 7 civil aviation airspaces was investigated for the years 2003 and 2004. In a typical LTO cycle, including approach, taxi, take-off and climb, approximately half of these amounts are produced in the taxiing, and the estimations show that a 4 min decrease in taxiing time results in a 6% decrease in LTO emissions.