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Fuel mass penalty due to generators and fuel cells as energy source of the all-electric aircraft |
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| Authors: | Jürgen Dollmayer Nicola Bundschuh Udo B Carl |
| Institution: | aHamburg University of Technology (TUHH), Institute of Aircraft Systems Engineering, Neßpriel 5, 21129 Hamburg, Germany;bGerman Aerospace Center (DLR), Institute of Technical Thermodynamics, 70569 Stuttgart, Germany |
| Abstract: | The paper presents the results of an assessment of the fuel mass penalty due to generators and fuel cell systems. Based on the simulation tool SysFuel, fuel mass penalties for different mission ranges and fuel cell architectures are calculated and compared to a conventional reference architecture. Different fuel cell architectures using ram air or cabin exhaust air and different options of energy recovery are considered. As a result of the studies, target values are presented for the mass to power ratio of fuel cell systems to achieve fuel mass reductions compared to conventional generator and auxiliary power unit systems. |
| Keywords: | Fuel consumption All-electric aircraft Fuel cell SOFC Electric power generation Aircraft systemsSchlü sselwö rter: Kraftstoffverbrauch All-Electric Aircraft Brennstoffzelle SOFC Elektrische Leistungserzeugung Flugzeugsysteme |
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