Results 11 to 20 of about 18,891,851 (185)

Servicing polar platforms using electric propulsion [PDF]

open access: yes, 1992
The future of space development has been examined in the context of the infrastructure necessary support it. It is concluded that the selection of propulsion systems for in-orbit transportation requires the development of general computer codes capable
Welch, C. S.
core   +7 more sources

Turboelectric Distributed Propulsion System Modelling [PDF]

open access: yes, 2013
The Blended-Wing-Body is a conceptual aircraft design with rear-mounted, over wing engines. Turboelectric distributed propulsion system with boundary layer ingestion has been considered for this aircraft.
Liu, Chengyuan
core   +7 more sources

Techno-economic and environmental risk assessment of a turbo-electric distributed propulsion system on a blended wing body aircraft [PDF]

open access: yes, 2014
Constant rise of air traffic has caused the environmental impacts of aviation to be the subject of an unprecedented scrutiny. Organisations all over the world are setting targets for emission reductions that represent the technological potential for ...
Giakoumakis, Eleftherios
core   +4 more sources

Ion Electric Propulsion System Electric Breakdown Problems: Causes, Impacts and Protection Strategies

open access: yesIEEE Access, 2023
Ion electric propulsion systems have been widely used in satellite station keeping, attitude control, and orbit transfer due to their advantages of high specific impulse, good flexibility, and high reliability.
Zheng Peng   +5 more
doaj   +1 more source

Speed-loop bandwidth design method for controller parameters of ship hydrogen storage DC electric propulsion system

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesThis paper aims to study the problems that the external electrical characteristics of a hydrogen fuel cell are soft, its dynamic characteristics are poor and its system stability is susceptible to the influence of propulsion load in marine ...
Wujian SONG   +4 more
doaj   +1 more source

MATHEMATICAL MODELING OF ELECTRIC HEATING ENGINE ON START-UP

open access: yesАвіаційно-космічна техніка та технологія, 2019
The subject of research in the article is the process of accelerating the working fluid in an electric heating thruster, which is part of the onboard propulsion system used in space tug.
Андрей Владимирович Погудин
doaj   +1 more source

Key Technologies for the Application of the Electric Propulsion System on the GEO Satellite Platform

open access: yesMeasurement + Control, 2008
Applying the electric propulsion system on GEO satellite in the future is an inevitable trend in China. For this purpose, a lot of problems should be solved not only thruster itself but also the whole system.
Bian Bingxiu, Wei Yanming, Li Yong
doaj   +1 more source

Analysis Leading to the Design of a Hybrid Gas-Electric Multi-Engine Testbed

open access: yesAerospace, 2023
Given the increase in air traffic, the main challenges in aircraft design are in-flight emissions and noise heard by the community. These problems have thus far been solved by incremental improvements in aerodynamics, engine technology and operation.
Agata Kuśmierek   +3 more
doaj   +1 more source

A Back–Forward Approach-Based Efficiency Performance Analysis Model for Hybrid Electric Propulsion Ships Using the Holtrop–Mennen Method

open access: yesJournal of Marine Science and Engineering, 2023
Due to tightening regulations on exhaust emissions from ships, there is a growing need to develop electric or hybrid electric propulsion systems to replace conventional diesel-based ship power systems.
Soon Ho Hong, Dong Min Kim, Sun Je Kim
doaj   +1 more source

Optimization and Analysis of an Elite Electric Propulsion System

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2019
- Electric propulsion has a promising system to create new possibilities in this technological era as well as control the harmful gaseous emission. This paper put a vision on several parameters of electric propulsion.
Mehakveer Singh   +4 more
doaj   +1 more source

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