Results 201 to 210 of about 55,752 (238)
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Hybrid-Electric Regional Jet Aircraft Operation Efficiency
AIAA Propulsion and Energy 2019 Forum, 2019This work investigates the affect modifying the operation strategy during cruise has on hybrid-electric regional jet performance. Specifically investigated are mission range, fuel burn, and carbon dioxide emissions from fuel and battery sources. Accompanying the results from the hybrid-electric aircraft simulation is an investigation into the national ...
Gabrielle E. Wroblewski +1 more
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Powertrain Model Improvement for Hybrid-Electric Regional Aircraft
AIAA SCITECH 2022 Forum, 2022This paper deals with the definition of an improved powertrain model for hybrid-electric aircraft. It is well known that powertrain equations are one of the most convenient tools for modelling the propulsion system at aircraft level, when it comes to hybrid architectures characterized by more than a single propulsive source.
Orefice F. +3 more
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Hybrid Electric Aircraft Battery Heat Acquisition System
2018 AIAA/IEEE Electric Aircraft Technologies Symposium, 2018The electric drive train or electric energy & power storage, conversion and distribution (ESC&D) system of a hybrid electric aircraft, even at high efficiency, will reject significant heat at relatively low temperature. Thus effective thermal management of the ESC&D system is critical to realizing the potential benefits of a hybrid electric aircraft as
Ravi Annapragada +4 more
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Commercial Hybrid Electric Aircraft Thermal Management Sensitivity Studies
AIAA Propulsion and Energy 2020 Forum, 2020Weight sensitivity studies were carried out on a Thermal Management System (TMS) of a parallel Hybrid Electric Propulsion (HEP) system of a commercial single aisle aircraft. The HEP system features a battery that feeds a Low Spool Motor (LSM) to assist the fan of a high bypass ratio geared turbofan.
Jonathan M. Rheaume, Charles E. Lents
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Energy Storage for Commercial Hybrid Electric Aircraft
SAE Technical Paper Series, 2016<div class="section abstract"><div class="htmlview paragraph">Energy storage options for a hybrid electric commercial single aisle aircraft were investigated. The propulsion system features twin Geared Turbofan™ engines in which each low speed spool is assisted by a 2,500 HP electric motor during takeoff and climb.
Jonathan M. Rheaume, Charles Lents
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Hybrid Electric Aircraft With Unlike Engine Degradation
Volume 4: Controls, Diagnostics, and InstrumentationAbstract Control solutions are applied to uneven engine performance degradation on a conceptual twin-engine transport-class aircraft. Such degradation can lead to asymmetric thrust, which requires rudder trim to maintain desired aircraft heading. This will increase drag and fuel consumption.
Halle E. Buescher, Joseph W. Connolly
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Are batteries fit for hybrid-electric regional aircraft?
2022Hybrid electric propulsion is likely to play a more prominent role for regional aircraft with 40+ passengers in the future air transport system with reduced climatic impact. In IMOTHEP, two hybrid-electric regional (HER) aircraft concepts, a conservative and a radical, are developed.
Kühnelt, Helmut +4 more
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Fuel Cell systems in hybrid-electric aircraft
With their actual power densities, fuel cell systems are too heavy for aviation. The power density of a fuel cell system can be increased by further developing the subcomponents. Intelligent integration of individual components in the aircraft could be a solution.Meindl, Markus +3 more
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Hummingbird Hybrid - Micro Hybrid Electric Aircraft Propulsion System
2021The Hummingbird Gas Turbines (HGT) student research group focuses on the research on small gas turbines. In line with global trends in aviation, HGT is exploring a possible path towards minimising noise and carbon emissions. To this aim, the group is developing the Hummingbird Hybrid, a series hybrid configuration test bench rated at 5 kW electric ...
Perren, C. +4 more
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Superconducting electric power systems for hybrid electric aircraft
Aircraft Engineering and Aerospace Technology, 2014Purpose – The purpose of this paper is to describe the necessity for the use of fully superconducting electrical power systems (SEPS) in future hybrid electric aircraft which facilitates the use of a distributed propulsion system. Design/methodology/approach – The paper looks at the overall design of the electric power systems for these applications ...
Peter Malkin, Meletios Pagonis
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