Results 51 to 60 of about 3,861 (237)

Electrical Distribution System LCA for Future Regional Aircraft—Preliminary Definition of Methodology

open access: yesAerospace, 2023
The Hybrid Electric Regional Aircraft Distribution Technologies (HECATE) Clean Aviation project will mature and develop breakthrough technologies and perform scalability and impact analysis to ensure safe and power-dense technologies that will enable ...
Daniel Izquierdo   +6 more
doaj   +1 more source

Modelling of a Hybrid-Electric Light Aircraft

open access: yesEnergy Procedia, 2017
Abstract The European Research and Innovation Agenda as well as the NASA long-term programs have set ambitious targets in terms of emission reduction for the aviation industry. Continuous improvements of conventional technologies will not be enough to fulfil these ambitious requirements; there is a need for revolutionary aircraft concepts and/or ...
Frosina, Emma   +5 more
openaire   +3 more sources

Conceptual Design of Operation Strategies for Hybrid Electric Aircraft [PDF]

open access: yesEnergies, 2018
Ambitious targets to reduce emissions caused by aviation in the light of an expected ongoing rise of the air transport demand in the future drive the research of propulsion systems with lower CO2 emissions. Regional hybrid electric aircraft (HEA) powered by conventional gas turbines and battery powered electric motors are investigated to test hybrid ...
Julian Hoelzen   +6 more
openaire   +3 more sources

Design of Batteries for a Hybrid Propulsion System of a Training Aircraft

open access: yesEnergies, 2021
In this article, we propose the parameters of a battery that would be suitable for the conceptual design of a small training aircraft. The mass design of the battery is based on the requirements for real training flights performed by students in pilot ...
Michal Janovec   +3 more
doaj   +1 more source

HERA - Hybrid-Electric Regional Architecture

open access: yes, 2023
HERA is a very big Clean Aviation project coordinated by Leonardo Aircraft and with more than 30 partners (among them UNINA) and a total budget over 30 M€. HERA project will identify and trade-off the concept of a regional aircraft, its key architectures,
Corcione S.   +6 more
core  

Using unmanned aerial vehicles (drones) to improve access to blood in low- and middle-income countries: Current challenges and opportunities. [PDF]

open access: yesVox Sang
Abstract Blood transfusion is life‐saving for patients in emergencies, but low‐ and middle‐income countries (LMICs) often face a severe shortage of banked blood. Establishing blood banks in rural areas presents substantial logistical and economic challenges for many LMICs.
Datta SS   +4 more
europepmc   +2 more sources

Flight Management Systems for Hybrid-Electric Aircraft [PDF]

open access: yes, 2021
Driven by the recent development in advanced air mobility and the need to transition to more sustainable aviation, this thesis provides a framework for the optimal flight management strategy that minimizes the direct operating cost (DOC) of a hybrid ...
Li, Steven
core  

Aircraft-level sensitivities of electric network component performance for (hybrid-) electric aircraft [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Research on electric aviation energy networks tends to focus on either detailed studies of individual subsystems, or full-aircraft analyses that use highly simplified network (component) models. This paper aims to bridge that gap by performing sensitivity studies for various network parameters (HVDC cables, power converters, and motors), evaluating ...
Nicolas FM Wahler, Ali Elham
openaire   +1 more source

Predictive Energy Management for Hybrid Electric Aircraft Propulsion Systems

open access: yesIEEE Transactions on Control Systems Technology, 2023
We present a Model Predictive Control (MPC) algorithm for energy management in aircraft with hybrid electric propulsion systems consisting of gas turbine and electric motor components. Series and parallel configurations are considered. By combining a point-mass aircraft dynamical model with models of electrical losses and losses in the gas turbine, the
Martin Doff-Sotta   +2 more
openaire   +3 more sources

Critical Development of Electric Fixed-Wing Manned Civil Aircraft [PDF]

open access: yesE3S Web of Conferences
This paper briefly introduces the current role of civil aviation in the emission of greenhouse gases and the history of electric aviation, pointing out the necessity of developing electric civil aircraft to reach strict environmental policies such as the
Yu Yifei
doaj   +1 more source

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