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Electric space propulsion systems
Space Science Reviews, 1967Active development of electric thrustors began 10 years ago. Today, several kinds of thrustors have achieved efficiencies above 90 % and lifetimes of several thousand hours. The following article derives the basic theory of electric thrust production at constant exhaust velocity, and at variable exhaust velocity programmed for optimum vehicle ...
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Propulsion systems for electric cars
IEEE Transactions on Vehicular Technology, 1974Proper selection of the propulsion system to meet the requirements of an electric passenger vehicle is of prime importance. Choice may be made among alternating current, direct current, or combined systems. Each approach can be implemented by utilizing various control techniques and power elements.
B. Berman, G.H. Gelb
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Direct-Conversion Electric Propulsion System
2018 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM), 2018The use of an AC electric drive with a frequency converter is a common practice in the world shipbuilding industry. The use of alternating current allows one to reduce the dimensions of the engine and improve the operational characteristics of the system as a whole which led to the almost complete replacement of DC systems in the design of new ships ...
E. Koptjaev, E. Popkov
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Advance Biowaste Electric Propulsion Systems
Journal of Engineering for Industry, 1970This paper studies the vapor biowaste electric propulsion systems and the impact of the evolving advance life support oxygen recovery cycles and subsystem trade-offs on the biowaste expendable composition and mass balances. The results of a computer analysis of the potential performance of three representative compositions used as propellants in ...
M. Goodman, M. M. Yakut
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2003
As we have seen in previous chapters, chemical propulsion systems are limited in performance by the energy stored in their propellants. This limitation can be overcome by using electric power available on the spacecraft (e.g., from solar arrays, nuclear reactors or beamed energy sources such as laser light or microwave energy transmitted to the ...
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As we have seen in previous chapters, chemical propulsion systems are limited in performance by the energy stored in their propellants. This limitation can be overcome by using electric power available on the spacecraft (e.g., from solar arrays, nuclear reactors or beamed energy sources such as laser light or microwave energy transmitted to the ...
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Electric and Hybrid-Electric Propulsion Systems
2013While in conventional ICE-based vehicles the energy carrier is a fossil fuel, electric and hybrid-electric propulsion systems are characterized by the presence of an electrochemical or electrostatic energy storage system. Moreover, at least one electric motor is responsible — totally or partially — for the vehicle propulsion.
Lino Guzzella, Antonio Sciarretta
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Solar electric propulsion system evaluation
Journal of Spacecraft and Rockets, 1970Solar electric propulsion system performance consisting of thrustors with thrust vector aligning actuators, switching network and flight type power ...
E. V. PAWLIK +3 more
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Electric-Wheel Vehicle Propulsion System
SAE Technical Paper Series, 1969<div class="htmlview paragraph">An electric wheel vehicle propulsion system has several potential advantages in the area of mobility, vehicle-design flexibility, and the accomplishment of multiple functions. Such a system has been developed by Delco-Remy Div.
C. W. King +2 more
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Non-electric Hybrid Propulsion Systems
2013The introductory section of this chapter describes several devices that may all be classified as short-term storage systems. The use of short-term storage systems in powertrain applications and the possible powertrain configurations are discussed first.
Lino Guzzella, Antonio Sciarretta
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Development of Electric Propulsion Systems for Light Electric Vehicles
IEEE Transactions on Industrial Informatics, 2011This paper presents two light electric vehicles (LEVs) with a electric propulsion system developed at an academic laboratory. One LEV is an electric city scooter powered by a lithium-ion battery pack and propelled by a wheel motor drive. The other LEV is an electric bicycle powered by a fuel cell system with the assistance of a supercapacitor bank ...
BERTOLUZZO, MANUELE, BUJA, GIUSEPPE
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