Results 61 to 70 of about 13,935 (90)
Engineering ProceedingsThe thermal management of next-generation hybrid electric regional aircrafts poses critical challenges due to extreme heat loads, which could reach more than 2 MW and must be dissipated.
Safa Sabet +6 more
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Engineering ProceedingsThis paper presents the results of a testbench regarding the effects of liquid water content in the turbine stage of a fuel-cell charging system. The testbench simulates the exhaust conditions of a PEM fuel cell to evaluate erosion potential in a single ...
Georgios Karakasis +3 more
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How Life Cycle Assessment Supports Sustainability Reporting: Example from Clean Aviation
Engineering ProceedingsThe aim of this work is to present how the Life Cycle Assessment (LCA) tool can support sustainability reporting. A comprehensive analysis enables organizations to generate precise and quantitative data, e.g., on resource consumption, thus aligning with ...
Ana Claudia Nioac de Salles +1 more
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Patriotas entre naciones: élites emigrantes españolas en Argentina [PDF]
, 2010 Los trabajos reunidos en este libro reconstruyen las trayectorias de vida de concretos emigrantes españoles en la Argentina entre 1880 y 1940. Sus autores reflexionan sobre el papel social, político y cultural desempeñado por sujetos mediadores en la ...
García Sebastiani, Marcela (dir.)
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Use of Cabin Sidewall for Thermal Management Applications
Engineering ProceedingsWith increased electrification of new aircraft designs, cooling becomes more challenging. The most straightforward solution is to activate yet unused heat sinks available in the aircraft.
Victor Norrefeldt, Gerhard Riedl
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Attitude control study for a large flexible spacecraft using a Solar Electric Propulsion System (SEPS) [PDF]
The attitude control performance of the solar electric propulsion system (SEPS) was evaluated. A thrust vector control system for powered flight control was examined along with a gas jet reaction control system, and a reaction wheel system, both of which
Key, R. W., Tolivar, A. F.
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Rocket Engine Vacuum Nozzle 3D Printing: Manufacturing, Weight, and Cost Savings
Engineering ProceedingsMetallic materials additive manufacturing is extremely challenging nowadays, while aircraft manufacturers are trying to adapt the newly developed technology to produce parts of complex geometry with minimum materials losses.
Nikolaos D. Alexopoulos +10 more
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Comparison of Energy Sources for an Electric Powertrain in a Tilt-Rotor Urban Air Mobility Vehicle
Engineering ProceedingsElectric vertical take-off and landing vehicles introduce challenges in powertrain design with short but high peak loads and low-load phases over longer periods of time during wing-borne flight. In this paper, three powertrain topologies are analyzed for
Jonas Ludowicy +2 more
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Engineering ProceedingsWhen the vapour–gas mixture flow heats the cold walls of a heat exchanger, condensed phase (solid and liquid) precipitation can occur on their surfaces. This study aims to improve a model of thermohydraulic processes in a heat exchanger during condensed ...
Illia Petukhov +3 more
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Towards the Development of an Eco-Design Approach for Aircraft Components
Engineering ProceedingsThis paper presents a comprehensive approach aimed at optimizing the design of aircraft components from a cradle-to-grave sustainability perspective. Central to this approach is a rigorous sustainability assessment, which evaluates environmental, cost ...
Aikaterini Anagnostopoulou +3 more
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