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Calculation of aircraft fuel consumption and CO2 emissions based on path profile estimation by clustering and registration
Institution:1. Anadolu University, Aircraft Airframe and Powerplant Dept., Eskisehir, Turkey;2. Anadolu University, Dept. of Flight Training, Eskisehir, Turkey;3. Anadolu University, Dept. of Air Traffic Control, Eskisehir, Turkey;4. Anadolu University, Dept. of Environmental Engineering, Eskisehir, Turkey;5. Anadolu University, Aircraft Maintenance Center, Eskisehir, Turkey;1. Department of Civil Engineering, The University of British Columbia, 6250 Applied Science Lane, Vancouver, BC V6T 1Z4 Canada;2. Department of Civil and Environmental Engineering, University of Alberta, 116 St NW, Edmonton, AB T6G 2E1 Canada
Abstract:In this paper, typical flight paths, fuel burn and carbon dioxide (CO2) emissions are computed using a rich data set and two estimation approaches: (i) a clustering and landmark registration technique and (ii) a method based on the EUROCONTROL’s Base of Aircraft Data (BADA) performance model. Clustering is employed to extract flight characteristics and organize altitude profiles accordingly. Our flight path and CO2 emissions analysis focuses on the Climb-Cruise-Descent (CCD) cycle, since different operational conditions during the Landing and Take-off cycle may result in significant deviations in terms of fuel burn and CO2 emissions and different modeling assumptions and approaches should be adopted. The key features of the CCD cycle are the flight distance, the aircraft type and the flight direction. Path segmentation and landmark registration are employed for path representation and smoothening of discontinuities. The paths estimated by the above method are compared to those obtained by the point mass BADA model. Noticeable deviations in the resulting estimates of the operational characteristics are found. Higher deviations in prediction errors are found in the climb and descent duration and the rate of climb and descent. The typical altitude profiles obtained by the two methods are used to determine fuel burn and CO2 emissions. The difference in the resulting estimates are less stark; on a fleet-wide level the fuel burn of the relevant typical profiles differ by 7%. Emission maps of the U.S. airspace enabling the identification of critical emission spots including routes, airports, seasons and aircraft type are constructed.
Keywords:Typical flight path  Fuel burn  Landmark registration  BADA performance model  Emission map
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