Results 51 to 60 of about 17,099,726 (75)

Numerical Analysis of Potential Energy Recovery via a Thermoelectric Generator (TEG) for the Next-Generation Hybrid-Electric Regional Aircraft

Engineering Proceedings
The 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, Werner Gumprich, Michael Moeller, Andrés Felgueroso, Iván González Nieves, Miguel Díaz, Simone Mancin   +6 more
doaj   +1 more source

The Development of a Test Stand for Electric Fuel-Cell Turbocharger Integrity Testing—Part 2: Results

Engineering Proceedings
This 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, Sebastian Kunze, Georgios Iosifidis, Anestis Kalfas   +3 more
doaj   +1 more source

How Life Cycle Assessment Supports Sustainability Reporting: Example from Clean Aviation

Engineering Proceedings
The 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, Peter Brantsch   +1 more
doaj   +1 more source

DEM 215: Environmental Education Final Exam

, 2017
DEM 215; ENVIRONMENTAL EDUCATION FINAL EXAMDaystar ...
School of Arts and Humanities, Department of Education
core  

Participant 215 Community Conversations Report

, 2020
In this report, Participant 215 shares the work and mission of a dental clinic providing services to underserved children and families in New Jersey during the COVID-19 pandemic.
McGrath-Barnes, Nicole
core  

Use of Cabin Sidewall for Thermal Management Applications

Engineering Proceedings
With 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
doaj   +1 more source

A Folha, Ano 4, Número 215

, 1976
Folheto publicado pela Cúria Diocesana de Nova Iguaçu de 1977 a 1984 com foco nas questões políticas e sociais que afetavam a vida dos habitantes da Baixada Fluminense, a partir da perspectiva da doutrina Cristã.
Hypólito, Dom Adriano Mandarino
core  

Rocket Engine Vacuum Nozzle 3D Printing: Manufacturing, Weight, and Cost Savings

Engineering Proceedings
Metallic 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, Vasileios Zeimpekis, Evangelos Vasileiou, Nikolaos Thomaidis, Theodoros Souxes, Ilona Lazaridou, Maksym Lutsyk, Roman Vorobev, Evgeniy Karakash, Elena Karpovich, Olexandr Grydin   +10 more
doaj   +1 more source

Comparison of Energy Sources for an Electric Powertrain in a Tilt-Rotor Urban Air Mobility Vehicle

Engineering Proceedings
Electric 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, Patrick Ratei, Stefanie de Graaf   +2 more
doaj   +1 more source

Specific Aspects of Modelling Heat and Mass Transfer During Condensed Phase Precipitation on Heat Exchanger Walls

Engineering Proceedings
When 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, Oleksii Lysytsia, Taras Mykhailenko, Artem Kovalov   +3 more
doaj   +1 more source