Analysis of the application of distributed propulsion to the AOS H2 motor glider

• Autorzy: Kuźniar Michał , Orkisz Marek

Identyfikatory

DOI

10.2478/kones-2019-0036

• Języki publikacji: EN

Abstrakty

EN

The paper describes the selection of a distributed propulsion for the AOS H2 motor glider (selection of engines, their number, and propellers) and determination of its performance. This analysis is related to the research conducted on environment friendly and hybrid propulsions in various research centres. The main aim of the analyses conducted is to increase the performance of vehicles powered by electric motors. The batteries have a low density of energy, i.e. the ratio of mass to cumulated energy. Instead of a battery set, it is possible to apply a hybrid- electric system, where the combustion engine works as a generator or an electric-hydrogen generator, where the hydrogen cell supports a small set of batteries. One of such flying vehicles, fitting in this trend, is the AOS H2 motor glider built at the Rzeszow University of Technology in cooperation with other universities. It is a hybrid aircraft, equipped with a hydrogen cell, which together with a set of batteries is a source of electricity for the Emrax 268 electric motor. To increase the vehicle's performance (the range and flight duration), it is possible to use a distributed propulsion. This type of propulsion consists in placing many electric motors along the wingspan of the aircraft. Appropriate design of such a system (propeller diameters, engine power, number of engines) can improve the aerodynamic and performance parameters of the airframe. An analysis of the performance for the selected flight trajectory for this propulsion variant was conducted and compared to the performance of the AOS H2 motor glider equipped with traditional propulsion. The consumption of hydrogen was also determined for both systems. The results obtained were presented in the diagrams and discussed in the conclusions.

Słowa kluczowe

EN

aircraft engineering; engines; mechanical engineering

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2019
• Tom: Vol. 26, No. 2
• Strony: 85--92
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Kuźniar Michał

• Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics Department of Aircraft and Aircraft Engines Powstańców Warszawy Av. 8, 35-959 Rzeszow, Poland tel.: [phone]

autor

Orkisz Marek

• Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics Department of Aircraft and Aircraft Engines Powstańców Warszawy Av. 8, 35-959 Rzeszow, Poland tel.: [phone]

Bibliografia

• [1] Anderson, J., Introduction to flight, McGraw Hill Book Company, San Francisco 2003.
• [2] Bukowski, J., Łucjanek, W., Napęd śmigłowy teoria i konstrukcja, MON, Warszawa 1984.
• [3] Geiss, I., Voit-Nitschmann, R., Sizing of fuel-based energy systems for electric aircrafts, Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering, Vol. 231, 2017.
• [4] Hartman, E., Biederman, D., The aerodynamic characteristic of full-scale propellers, NACA, Report No.640, 1938.
• [5] Jakubowski, R., Orkisz, M., Wołoszyn, T., Wygonik, P., A review of selected alternative propulsion systems for UAV applications, Combustion Engines, Zeszyty Naukowe, Wyższa Szkoła Oficerska Sił Powietrznych, No. 1, 2015.
• [6] Marianowski, J., Frączek, W. Czarnocki, F., Założenia podstawowe dla projektu motoszybowca AOS-H2.
• [7] Marianowski, J., Tomasiewicz, J., Czarnocki, F., Analiza masowa motoszybowca AOS-H2.
• [8] Orkisz, M., Wygonik, P., Kuźniar, M., Kalwara, M., Comparative analysis of pollutants emission by classical and distributed propulsions applied on the AOS motor glider, Combustion Engines, 179(4), pp. 102-106, 2019.
• [9] Orkisz, M., Wygonik, P., Kuźniar, M., Kalwara, M., Propulsion of an electric generator in application to a motor glider propulsion, Combustion Engines, 178(3), pp. 281-285, 2019.
• [10] Wołoszyn, T., Jakubowski, R., Orkisz, M., Wygonik, P., Analysis of integration capabilities of hybrid-electric propulsion system in an unmanned aerial vehicle for a determined mission, Combustion Engines, 154(3), pp. 556-561, 2013.
• [11] www.modelmotors.cz.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).