Results 11 to 20 of about 9,291 (187)

Propulsion systems and low-thrust rocket engines based on various physical principles for control systems of small and micro-spacecraft

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The article presents an analysis of the possibility of using propulsion systems and rocket thrusters based on various physical principles and used as part of small and very small spacecraft.
V. V. Ryzhkov, A. V. Sulinov
doaj   +1 more source

Applications of Hydrogen Fuel Cell Technology to the Sustainable Propulsion of Leisure Crafts [PDF]

open access: yes, 2018
The contemporary concerns inherent to sustainability have become predominant in a number of industries, including the marine one. In July 2011, the Marine Environmental Protection Committee of the International Maritime organisation (IMO), imposed a reduction of pollutants, such as NOx and SOx, by 90% before 2025, and a complete end to CO2 emission by ...
Souppez, Jean-Baptiste R. G.   +1 more
  +5 more sources

Lowest-Technical-Merit Design Methodology of Hypersonic Cruise Vehicle

open access: yesIEEE Access, 2019
In the design of hypersonic cruise vehicles, great effort is demanded to improve the performances of subsystems, namely structure, aerodynamics, and propulsion.
Wenkai Wang   +3 more
doaj   +1 more source

Next-Gen Aviation: Who Will Rule the Skies—Hydrogen or Electric?—A Review

open access: yesIEEE Access
In pursuit of net-zero aviation by 2050, fully electric and hydrogen-fueled aircraft have emerged as two leading pathways to decarbonize the aviation sector.
Saikat Chowdhury, Mona Ghassemi
doaj   +1 more source

A Life Cycle Assessment Framework for Evaluating the Climate Impact of Hydrogen-Based Passenger Vehicle Technologies Toward Sustainable Mobility

open access: yesHydrogen
Hydrogen-based mobility solutions could offer viable technology for sustainable transportation. Current research often examines single pathways, leaving broader comparisons unexplored.
Péter Németh   +2 more
doaj   +1 more source

Zero Pollution: design of a river tourist pontoon with electric propulsion based on hydrogen fuel cell

open access: yesCiencia y tecnología de buques, 2023
Environmental logistics in Colombian river areas requires solutions that allow economic development based on tourism, without ecological degradation. Therefore, this paper shows the most relevant aspects of the project and preliminary design of a Pontoon-type vessel with a catamaran hull of 8 meters in length with enough power to reach a speed of 5 ...
David Naranjo Tabares   +1 more
openaire   +1 more source

Hydrogen-Powered Engines: A Study on Selected Technological and Emissions Issues

open access: yesEnergies
With the growing trend towards the electrification of transport, it is anticipated that internal combustion engines will continue to play an important role in the production of electricity for electricity systems or the direct propulsion of vehicles ...
Katarzyna Markowska   +6 more
doaj   +1 more source

Experimental Pressure Gain Analysis of Pulsed Detonation Engine

open access: yesAerospace
A pulsed detonation chamber (PDC) equipped with Hartmann–Sprenger resonators has been designed and tested for both Hydrogen/air and Hydrogen/Oxygen mixtures.
Alina Bogoi   +5 more
doaj   +1 more source

Hydrogen-Powered Aviation: Insights from a Cross-Sectional Scientometric and Thematic Analysis of Patent Claims

open access: yesApplied Sciences
Hydrogen-powered aviation is gaining momentum as a sustainable alternative to fossil-fueled flight, yet the field faces complex technological and operational challenges.
Raj Bridgelall
doaj   +1 more source

Modular hydrogen fuel cell propulsion test stand for railway applications

open access: yesCombustion Engines
The article discusses the concept of using a hydrogen fuel cell as the primary energy source for a rail vehicle's propulsion system. The authors presented the idea of a stationary test stand for commissioning and testing of the hydrogen fuel cell, cooperating with a battery energy storage and a traction inverter.
Patryk Radziszewski   +5 more
openaire   +1 more source

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