Climate Change Research ›› 2022, Vol. 18 ›› Issue (2): 196-204.doi: 10.12006/j.issn.1673-1719.2021.158

• Greenhouse Gas Emissions • Previous Articles     Next Articles

Study on fine aviation carbon dioxide emission factors based on the flight phase

LYU Chen1(), LIU Hao2, XU Shao-Dong3, YANG Nan2, DU Meng-Bing4, CAI Bo-Feng1   

  1. 1 Center for Carbon Neutrality, Chinese Academy of Environmental Planning, Beijing 100012, China
    2 Beijing University of Technology, Beijing 100124, China
    3 School of Statistics, Renmin University of China, Beijing 100872, China
    4 Department of Public Policy, City University of Hong Kong, Hong Kong 999077, China
  • Received:2021-08-09 Revised:2021-12-12 Online:2022-03-30 Published:2022-02-07


Air transport is the fastest-growing sector for carbon dioxide (CO2) emissions in the transportation field. In this study, typical aircrafts of super-large, large, medium, and small size were selected to calculate aviation CO2 emission factors, based on the change of engine fuel consumption rate, time consumption and fuel consumption of different aircraft during take-off, climb out, cruise, approach and taxiing stages. Meanwhile, the per capita CO2 emissions of passengers (CO2 emission factor per passenger turnover) on different aircraft were evaluated according to the CO2 emission characteristics, rated passenger capacity and passenger load of different aircraft. The results showed that the average CO2 emission factors of super-large, large, medium, and small size aircraft within their maximum mileage are 49.8, 31.7, 16.2 and 8.5 kg CO2/km, respectively, and the average CO2 emission factors per passenger turnover are 102.6, 95.2, 81.7 and 112.4 g CO2/(person∙km). Because the engine fuel consumption rate during take-off and climb out is about 2.6-3.4 times and 2.0-2.8 times of the cruise fuel consumption rate, the aviation CO2 emission factor decreases with the flight mileage increase. Air transport is a high carbon emission passenger transport mode, and its per capita CO2 emissions is significantly higher than that of high-speed railway and on-road motor vehicles under the same mileage. It is an effective way to reduce aviation CO2 emissions by improving engine fuel efficiency, reducing short-distance transport, improving the passenger loads and reducing midway transfers.

Key words: Air transport, Passenger turnover, Carbon dioxide emission factor, Land take-off (LTO) cycle, Cruise phase

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