Title: Analysis of fuel consumption and noise of a regional turbopropeller aircraft with a hybrid power plant

Authors: Vitalii Makarenko; Vadim Tokarev; Kateryna Kazhan; Kateryna Synylo; Olexandr Yakushenko; Oleksandr Zaporozhets

Addresses: National Aviation University, Kyiv 03058, Liubomyra Huzara Avenue, 1, Ukraine ' National Aviation University, Kyiv 03058, Liubomyra Huzara Avenue, 1, Ukraine ' National Aviation University, Kyiv 03058, Liubomyra Huzara Avenue, 1, Ukraine ' National Aviation University, Kyiv 03058, Liubomyra Huzara Avenue, 1, Ukraine ' National Aviation University, Kyiv 03058, Liubomyra Huzara Avenue, 1, Ukraine ' Łukasiewicz Research Network, Institute of Aviation, Warsaw 02-256, Str. Al. Krakowska 110/114, Poland

Abstract: This article assesses the ecological efficiency of hybrid-electric aircraft (HEA) and simulates their parameters using a regional aircraft as an example. The noise problem is addressed by modernising the power plant of the An-26 aircraft. The proposed noise reduction method involves optimising the operating modes of engines. The sound pressure level created by the HEA at certification points was used as the optimisation criterion. The acoustic characteristics of HEA propellers are calculated using the Gutin-Deming model. The HEA flight trajectories were determined based on the results of solving the system of differential equations. The results of the calculations showed that the use of optimal HEA operating procedures allows for reduced fuel consumption and reduced noise in the area. The reduction of 70 dB SEL contour area was 50.6% during takeoff and 21.9% during landing. A maximum reduction of 2.8 EPNLdB was achieved at the flyover certification point for HEA.

Keywords: hybrid-electric power plant; noise; flight path; trajectory optimisation; fuel consumption; hybrid electric aircraft; HEA; parallel hybrid.

DOI: 10.1504/IJSA.2024.142562

International Journal of Sustainable Aviation, 2024 Vol.10 No.4, pp.315 - 349

Received: 09 Feb 2024
Accepted: 04 Jul 2024
Published online: 08 Nov 2024 *

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