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Wednesday, April 29, 2020 | History

3 edition of Final report for a preliminary investigation of Hall thruster technology found in the catalog.

Final report for a preliminary investigation of Hall thruster technology

Final report for a preliminary investigation of Hall thruster technology

NAG3-1504

by

  • 130 Want to read
  • 35 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Plasma potentials.,
  • NASA programs.,
  • Plumes.,
  • Flow characteristics.,
  • Exhaust velocity.,
  • Electric fields.,
  • Current density.,
  • Magnetohydrodynamic flow.,
  • Thrustors.,
  • Arc jet engines.

  • Edition Notes

    Other titlesPreliminary investigation of Hall thruster technology.
    Statementprincipal investigator, Alec D. Gallimore.
    Series[NASA contractor report] -- 205777., NASA contractor report -- NASA CR-205777.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15491938M

    The article is called Hall effect thruster, whereas it should be Hall thruster to be self consistent. Hall effect thruster should be maintained as a redirect. , 28 August (UTC) Diagram seems incorrect. Unless this is a different version of the hall effect thruster or something, the outer coil looks wrong to me. See.   APR 8, - Federal investigators have released more details of the airplane crash that killed two pilots last month at a northwest Oklahoma City airport. The National Transportation Safety Board posted a preliminary accident report that showed the aircraft rolled upside down before hitting the ground near the runway at Sundance Airport in Oklahoma City. According to the brief report. The Jupiter Icy Moons Orbiter (JIMO) was a proposed NASA spacecraft designed to explore the icy moons of main target was Europa, where an ocean of liquid water may harbor alien life. Ganymede and Callisto, which are now thought to have liquid, salty oceans beneath their icy surfaces, were also targets of interest for the probe.


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Final report for a preliminary investigation of Hall thruster technology Download PDF EPUB FB2

The Hall Thruster There are two t_qpes of Hall thrusters that have been studied at _eat lengths, tile end- Hall thruster and tile closed-drift thruster. Both engines, in principle, are capable of producing specific impulses in excess of seconds with. The Hall Thruster There are two type.s of Ilall thrusters that have been studied at great lengths, the eml-Hall thrltster and tile closed-drift thruster.

Both engine& in principle, are capable of producing specific impulses in excess of seconds with xenon at a thrust efficiency _50%. Final report for a preliminary investigation of Hall thruster technology: NAG Herein, a preliminary characterization of the first generation 10 kW laboratory Hall thruster is reported.

Apparatus In recent years, with the advances in space power systems 3, the power levels of spacecraft being manufactured have continued to rise. Spacecraft now have power levels approaching 20 kW 4' Size: KB. The design of a Hall-effect thruster prototype is presented in this paper.

In the present phase of the study, the design layout has been completed with preliminary analyses of the magnetic field in the thruster investigated. The calculated results show that the magnetic field is capable of generating W to W plasma discharge.

thrusters, and the total impulse capability can be comparable. Hall thrusters were originally envisioned in the U.S.

and Russia about 50 years ago, with the first working devices reported in America in the early s. Ultimately, Hall thruster technology was developed to flight status in Russia and has onlyFile Size: 1MB. Fundamentals of Electric Propulsion: Ion and Hall Thrusters March The research described in this publication was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

Reference herein to any specific commercial product, process, or service. Performance Modeling of a Thrust Vectoring Device for Hall Effect Thrusters. Heavy hydrocarbon main injector technology program.

Final Report, Apr. - Jan. Electron Transport in Hall Thrusters. This work presents a primarily experimental investigation of collisional and turbulent Hall thruster electron transport mechanisms.

The first report. Hall thruster. It was tested from 2,6kW to 23,5kW of total power with xenon as propellant. A maximum thrust of mN was obtained with anodic Isp of about s at kW of total power [14]. To sum up, performance comparison of different high power Hall thrusters is reported in Table 1.

Table Size: KB. the development of high power Hall thrusters, sug-gest reasonable limits for near term extrapolation of state-of-the-art (SOA) Hall technology, and to suggest a development path for the even higher power thrusters.

Nomenclature T thrust P power I_ ion current J_ ion current density I,t, permeability of free space _ average ion exhaust velocityCited by: NASA's Hall Thruster Program total effort are used to propose a preliminary, new solar array design for 2 kW and kW class, deep space missions that may employ a.

Hall Thruster Operation Hall thrusters use a hollow cathode located on the downstream perimeter of the thruster to generate electrons.

The anode (or channel) of the Hall thruster (shown in the diagram at the bottom of the last page) is charged to a high positive potential by the thruster's power supply.

stems from the ability of Hall thrusters to operate with fairly good efficiency (∼ 50%) in the hitherto difficult specific impulse range around sec, and also from their relative simplicity compared to ion engines. Many different varieties of Hall thrusters exist, created in several laboratories and companies around the Size: KB.

magnetically shielded Hall thruster under the sponsorship of the NASA Space Technology Mission Directorate (STMD) The thruster is named the Hall Effect Rocket with Magnetic Shielding (HERMeS). The development of this thruster is part of an ongoing STMD effort to mature next generation solar electric propulsion systems for use in NASA missions.

Throughout most of the twentieth century, electric propulsion was considered the technology of the future. Now, the future has arrived. This important new book explains the fundamentals of electric propulsion for spacecraft and describes in detail the physics and characteristics of the two major electric thrusters in use today, ion and Hall thrusters.5/5(1).

But the X3 has a bit of a head start. For thrusters of its design power, kilowatts, it is relatively small and light. And the core technology—the Hall thruster—is already in use for Author: Katherine Mcalpine. Hall thruster scaling methodology is a powerful tool to carry out a preliminary design of a Hall Effect Thruster (HET).

This methodology is based on. HALL thruster is a promising thruster in the electric propulsion systems for an N/S station keeping and orbit transfer applications because its thrust efficiency is higher than those of other thrusters at the specific impulse in the range of – s1). Recently, high-power Hall thrusters have been developed for application to orbit.

In spacecraft propulsion, a Hall-effect thruster (HET) is a type of ion thruster in which the propellant is accelerated by an electric field. Hall-effect thrusters use a magnetic field to limit the electrons' axial motion and then use them to ionize propellant, efficiently accelerate the ions to produce thrust, and neutralize the ions in the -effect thrusters (based on the.

The Miniature Hall Thruster (MHT-9) is a TAL type Hall thruster built by Warner [76] [ Thruster with Anode Layer. The name stationary plasma thruster came from the Russian translation of.

power Hall thrusters. The preliminary test bed consists of four Busek Co. BHTX3 Hall thrusters in a cluster of four. The thrusters have been delivered and mounted into the test fixture at AFRL.

Plume measurements have begun and thruster cross-talk studies are ongoing. Figure 1 shows the cluster firing in Chamber 6 at AFRL. Neutralization. HALL EFFECT THRUSTERS Hall Thrusters generate thrust by creating and accelerating ionized gas via magnetic and electrostatic fields.

Busek is a leader in hall thruster development, culminating in the flight of the first US-based hall thruster on TacSat-2 and recent launch of FalconSat Busek has developed numerous hall thrusters, each of. offs between Hall-effect thrusters and ion engines as a high power propulsion system for orbit transfer missions.

Both the Hall-effect thruster and the gridded ion engine are classified as electrostatic thrusters and operate on heavy noble gases, primarily xenon. These electric propulsion devices are capable of specific impulses ranging fromCited by: The Hall effect thruster (HET) shown in Figure 1, is a relatively simple type of EP device.

Using a small number of components to produce an ExB field, an HET can accelerate ions to extremely high velocities to provide thrust. In addition, HETs can achieve an I sp of up to seconds. [3] Figure 1 - Hall effect thruster cross section [4].Author: Matthew Baird.

The HDLP operating at kHz and the FastCam operating atfps produced pioneering spatial and temporal views of Hall thruster plasma plume properties. A faster HDLP under development will enable the 1 MHz data acquisition rate necessary to capture an FRC plasmoid that is formed and ejected in approximately 20 micro-seconds.

Krypton Hall effect thruster for spacecraft propulsion Date: October 6, Source: Institute of Plasma Physics and Laser Microfusion Summary: Electric propulsion (EP) is the future of astronautics. Theoretical and Experimental Investigation of Hall Thruster Miniaturization by Noah Zachary Warner S.B., Aeronautics and Astronautics, Massachusetts Institute of Technology, S.M., Aeronautics and Astronautics, Massachusetts Institute of Technology, SUBMITTED TO THE DEPARTMENT OF AERONAUTICS AND ASTRONAUTICSFile Size: 4MB.

Investigation of the Hall effect thruster breathing mode and spoke mode instabilities in the very near field.

December 4, [image]Ethan Dale University of Michigan. One of the most practical forms of electric propulsion is the Hall Effect Thruster (HET), which makes use of electric and magnetic fields to create and eject a plasma.

New Thruster Design Increases Efficiency for Future Spaceflight The specific impulse of the thruster increased by to percent. Futurism August 17th Author: Futurism. Hall-effect thruster explained. In spacecraft propulsion, a Hall-effect thruster (HET) is a type of ion thruster in which the propellant is accelerated by an electric field.

Hall-effect thrusters use a magnetic field to limit the electrons' axial motion and then use them to ionize propellant, efficiently accelerate the ions to produce thrust, and neutralize the ions in the plume. Hall thruster cathode coupling Part I: efficiency improvements from an extended outer pole: Sommerville, J.D., and King, L.B.

Journal of Propulsion and Power: Loss mechanisms of a low discharge voltage Hall thruster: Ross, J.L, Sommerville, J.D., and King, L.B.

Journal of Propulsion and Power: Development of a Magnesium and Zinc. Preliminary Design of a Laboratory Cylindrical Hall-Effect Thruster A Senior Project presented to investigation into the physics of Hall thrusters and selection of certain thruster parameters.

efficiency and specific impulse than ion thrusters. This report discusses the design of a small, cylindrical laboratory stationary plasma. Energy Analysis of a Hall Thruster Cluster Brian E. Beal and Alec D. Gallimore Plasmadynamics and Electric Propulsion Laboratory Department of Aerospace Engineering The University of Michigan Ann Arbor, MI ABSTRACT In an effort to understand the technical issues related to using a cluster of Hall effectFile Size: 1MB.

Jason Frieman, Scott King, Vadim Khayms, Mitchell Walker, “Preliminary Assessment of the Role of a Conducting Chamber in Hall Effect Thruster Electrical Circuit,” 50th Joint Propulsion Conference and Exhibit, Cleveland, OH, July Assembled two 5-kW P5 Hall thrusters and cathodes Constructed a null-type inverted-pendulum thrust stand Set up and performed characterization tests on the Pratt & Whitney THT kW Hall thruster Set up and performed characterization tests of the Aerojet BPT kW Hall thrusterFile Size: KB.

Investigation of Field Structure and Electron Behavior in the Near-Field of Hall Thrusters A. Smith * and M.A. Cappelli † Mechanical Engineering Department, Thermosciences Division, Stanford University, Stanford, CA, The formulation and preliminary results of a 3-D discrete electron transport simulation are presented.

[image]Scott Hall University of Michigan. Proposed here is a full performance characterization of the X3 Nested-channel Hall Thruster (NHT), a kW class thruster developed jointly by the Plasmadynamics and Electric Propulsion Laboratory (PEPL) at the University of Michigan, NASA, and the Air Force Office of Scientific Research.

Preliminary Assessment of the Role of a Conducting Vacuum Chamber in the Hall Effect Thruster Electrical Circuit Jason D. Frieman1, Scott T. King2, and Mitchell L.R. Walker3 Georgia Institute of Technology, Atlanta, Georgia, Vadim Khayms4 Lockheed Martin Space Systems Company, Sunnyvale, California, and David King5Cited by: 6.

HALL THRUSTER HISTORY: Hall thruster research began independently in the United States and Russia in the s. Electric propulsion efforts in the United States mainly focused on gridded ion thrusters until NASA started a Hall thruster program at the NASA Lewis Research Center (now Glenn Research Center) in the s.

Hall Thrusters FTP. Electric Propulsion Systems Read More FTP. Advanced Concepts Read More FTP. MISSIONS AND PROGRAMS. LINKS. Thruster Energetics Program Read More: In-Space Propulsion Hall Thruster Research Read More: Project Prometheus Read More: RELATED LINKS: Boeing Xenon Ion Propulsion (XIPs).It is what's known as a Hall thruster, which uses electric and magnetic fields to ionize gases like xenon and expels the ions to produce thrust.

The technique is much cleaner, safer and .Theoretical and Experimental Investigation of Low-Erosion Hall Thruster Configurations The analysis of Hall thruster qualification campaigns and endurance tests has shown a substantial degradation of are then compared with the preliminary results of an experimental campaign carried out on the HT5k-M, a flexible 5.