Electromagnetic emission experiences using electric propulsion systems

a survey
  • 3.97 MB
  • English

National Aeronautics and Space Administration, For sale by the National Technical Information Service , [Washington, DC], [Springfield, Va
Electromagnetic compatibility., Space vehicles -- Electric propulsion sys
StatementJames S. Sovey and Lynnette M. Zana, Steven C. Knowles.
SeriesNASA technical memorandum -- 100120.
ContributionsZana, Lynnette M., Knowles, Steven C., United States. National Aeronautics and Space Administration.
The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL15289371M

As electric propulsion systems become ready to integrate-with spacecraft systems, the characterlzation of propulsion system radiated emissions are of significant interest.

electromagnetic experiences using electromagnetic, electrostatic, and electro- thermal propulsion systems. Electromagnetic radiated emission results from. Electromagnetic emission experiences using electric propulsion systems: A survey.

Description Electromagnetic emission experiences using electric propulsion systems FB2

By James S. Sovey, Steven C. Knowles and Lynnette M. Zana. Abstract. As electric propulsion systems become ready to integrate with spacecraft systems, the impact of propulsion system radiated emissions are of significant interest. Radiated emissions from.

As electric propulsion systems become ready to integrate with spacecraft systems, the impact of propulsion system radiated emissions are of significant interest. Radiated emissions from electromagnetic, electrostatic, and electrothermal systems have been characterized and results synopsized from the literature describing 21 space flight programs.

development of electric propulsion [] and extension to electromagnetic propulsion with more powerful magnetic materials [4] Electromagnetic propulsion is no longer a dream. Researchers like John C. Mankins [5] presented some of the early models for launching of rockets using EMP.

Presently there are lot of research. Purchase Electric Propulsion Development - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. With literally hundreds of electric thrusters now operating in orbit on communications satellites, and ion and Hall thrusters both having been successfully used for primary propulsion in deep-space scientific missions, the future for electric propulsion has arrived.

The literature contains several books from the s and numerous journal. Goodwin believes that this reactor could be used to power the electromagnetic-propulsion system. The DOE is working to secure funding from NASA, and a kilowatt reactor could be ready by The propulsion system would be configured to convert the thermal power generated by the reactor into electric.

Stuhlinger argued that lighter-weight electric propulsion systems would make such planetary trips more feasible than they were with chemical propulsion. Stuhlinger eventually published a book entitled Ion Propulsion for Space Flight and went on to direct NASA Marshall Space Flight Center's work on arcjet and ion propulsion systems.

While he was. Electromagnetic induction is the next exciting idea of obtaining a clean, green and powerful propulsion for our vehicles.

Since magnetic fields easily penetrate solids, liquids and gases alike, we can use this system to design vehicles that move on roads, over rails, in water and underground too.

The propulsion system depends on the polarity of. Diesel-electric propulsion systems are clearly superior both technically and in operation to normal diesel drive systems in almost all areas. Drive MV is the marine industry’s leading alternating-current propulsion system. Although it can unleash much power, it runs as quiet as a whisper with low vibration.

Field emission electric propulsion for spacecraft applications represents one of the most spectacular ones where such ion beams were used to produce thrust [2]. Specifically, the ion emitter.

Geostationary communications satellites have used electric propulsion systems for station keeping since the early nineteen-eighties. Low Earth orbit satellites, such as the Iridium mobile communications cluster, have also used electric propulsion for orbit adjustments but the use of electric propulsion as a spacecraft's primary means of propulsion has been restricted to experimental.

This paper briefly summarizes communications and dynamic electromagnetic experiences using electromagnetic, electrostatic, and electrothermal propulsion systems. Electromagnetic radiated emission. 4. The Voltec Propulsion System. The main subsystems of the propulsion system are the electric drive unit, the Voltec battery, the l ICE, the OBCM, the auxiliary power module (APM) (HVV DC/DC converter), and the electrically driven air-conditioning and cabin heating system.

The paper presents research on the electromagnetic hazards related to the flow of electric currents throughout the bodies of employees using portable radios.

The values often exceed established limits, which may lead to potential dysfunctions of the body and affect the safety of performed professional duties. The measurements of the electric field (E-field) distribution of a typical commercial. Tether propulsion. As part of a tether propulsion system, crafts can use long, strong conductors (though not all tethers are conductive) to change the orbits of has the potential to make space travel significantly cheaper.

[citation needed] When direct current is applied to the tether, it exerts a Lorentz force against the magnetic field, and the tether exerts a force on the vehicle.

Details Electromagnetic emission experiences using electric propulsion systems EPUB

In this paper, the authors consider the issue of processing the data of electromagnetic pulses (EMPs) recorded in mine workings and their interpretation. The Sami fault (Russia, the Murmansk region) was chosen as the object of the research. A number of experiments, including measuring the EMP level along the fault and the analysis of the results, were performed by the authors.

Another possible use for the propulsion system is keeping satellites in low orbits of about kilometers where they are subjected to substantial drag that would normally cause them re-enter the.

For his experiments, Brown used the Coolidge tube, one of the first practical tubes used in thermionic emission, the emission of electrons from heated sources. A coiled wire (tungsten filament) was used as the tube cathode (an electrode that emits electric current), which produces incandescence or.

The ion propulsion system's efficient use of fuel and electrical power enable modern spacecraft to travel farther, faster and cheaper than any other propulsion technology currently available. Chemical rockets have demonstrated fuel efficiencies up to 35 percent, but ion thrusters have demonstrated fuel efficiencies over 90 percent.

Electric Propulsion (EP) is a class of space propulsion which makes use of electrical power to accelerate a propellant by different possible electrical and/or magnetic means. The use of electrical power enhances the propulsive performances of the EP thrusters compared with conventional chemical thrusters.

Unlike chemical systems, electric propulsion requires very little mass to accelerate a. and Electromagnetic propulsion systems (magneto-plasmadynamic thrusters, pulsed plasma thrusters, etc.).

A particular type of electrostatic propulsion system, called as Field Emission Electric Propulsion (FEEP) systems, has lately been a topic for ongoing research. Modern Earth observation as well as interplanetary. Electromagnetic propulsion (EMP) is the principle of accelerating an object by the utilization of a flowing electrical current and magnetic electrical current is used to either create an opposing magnetic field, or to charge a field, which can then be repelled.

When a current flows through a conductor in a magnetic field, an electromagnetic force known as a Lorentz force, pushes the. An electrically powered spacecraft propulsion system uses electrical, and possibly also magnetic fields, to change the velocity of a of these kinds of spacecraft propulsion systems work by electrically expelling propellant (reaction mass) at high speed.

Electric thrusters typically use much less propellant than chemical rockets because they have a higher exhaust speed (operate.

Download Electromagnetic emission experiences using electric propulsion systems FB2

Electric Propulsion Historically, conceptually, and pragmatically, this Þeld has tended to subdivide into three categories: 1. Electrothermal propulsion, wherein the propellant is heated by some electrical process, then expanded through a suitable nozzle 2.

Electrostatic propulsion, wherein the propellant is. Geared toward advanced undergraduates and graduate students, this text systematically develops the concepts of electrical acceleration of gases for propulsion. Starting with primary physical principles and concluding with realistic space thruster designs, it surveys aspects of electricity, magnetism, and ionized gas mechanics underlying physical mechanisms of gas acceleration.

edition. Among the alternatives, fuel-cell (FC)-powered electric vehicles using hydrogen as fuel are considered as the ultimate route to achieve sustainable long-term alternative propulsion systems. In particular, proton-exchange membrane FCs are widely recognized as one of the most promising technologies to meet future power requirements of vehicular.

American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA   Electric propulsion “The acceleration of gases for propulsion by electric heating and/or by electric and magnetic body forces.” The general classes of systems for electric propulsion are: •Electrostatic propulsion devices •Electrothermal propulsion devices •Electromagnetic propulsion devices.

Theory of Propulsion 3 4. By using electrical energy to increase the velocity of the ionized propellant, electric propulsion systems combine high specific impulse and excellent efficiency at low thrust, which is essential for long-term control over relative position and orientation of orbiting nano-.

Overview of Advanced Electromagnetic Propulsion Development at NASA Glenn Research Center NASA Glenn Research Center s Very High Power Electric Propulsion task is sponsored by the Energetics Heritage Project.

Electric propulsion technologies currently being investigated under this program include pulsed electromagnetic plasma thrusters, magnetoplasmadynamic thrusters.

The µCAT is a simple electric propulsion device and combined with a magnetic coil and an inductive energy storage power processing unit (PPU) results in a low mass (system. A picture of the µ CAT system and two types of geometries of a thruster are shown in figures 3(a)–(c). Most of today's rocket engines rely on chemical propulsion.

All current spacecraft use some form of chemical rocket for launch and most use them for attitude control as well (the control of the angular position and rotation of the spacecraft, either relative to the object that it is orbiting, or relative to the celestial sphere).

Real rocket scientists though are actively researching new forms.