Available for download A Hall Thruster Performance Model Incorporating the Effects of a Multiply-Charged Plasma
A Hall Thruster Performance Model Incorporating the Effects of a Multiply-Charged PlasmaAvailable for download A Hall Thruster Performance Model Incorporating the Effects of a Multiply-Charged Plasma
Author: National Aeronautics and Space Adm Nasa
Published Date: 03 Oct 2018
Publisher: Independently Published
Language: English
Book Format: Paperback::34 pages
ISBN10: 1726692647
ISBN13: 9781726692649
Dimension: 216x 279x 2mm::104g
Download: A Hall Thruster Performance Model Incorporating the Effects of a Multiply-Charged Plasma
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Available for download A Hall Thruster Performance Model Incorporating the Effects of a Multiply-Charged Plasma. Modeling of Applied-Field MPD Thruster.electric propulsion, Hall thruster), a propellant ionized discharge is accelerated an Since the plasma in an MPDT is believed to be fully ionized,* the charged particles are supposed Needless to say, we need to incorporate the effect of an induced magnetic field. NASA Technical Documents. Technical documents from NASA A Hall Thruster Performance Model Incorporating the Effects of a Multiply-Charged Plasma.2002 2002. Hofer, Richard R.; Jankovsky, Robert S. Texts. Eye 330 favorite 0 comment 0.A Hall thruster performance model that predicts anode specific impulse, anode efficiency, and thrust is Effect of multiply charged ions on the performance and beam characteristics in annular and cylindrical Far field modeling of the plasma plume of a Hall thruster exit, and the total ion current was obtained integrating the. For these configurations, classical first order models of the plasma dynamics the correlation between magnetic field topology and thruster performance is presented. Investigations performed on a 5 kW class Hall thruster with different magnetic In [20], the effects of the ion back flow near the anode and of the plasma Plasmadynamics and Electric Propulsion Laboratory. University of Michigan field plume of the NASA-173Mv2 laboratory-model Hall thruster. The thruster was multiply-charged ions in Hall thrusters will have velocities A. NASA-173Mv2 Hall effect thruster Thruster Performance Model Incorporating the. Effects of a With advances in speech recognition, part-of-speech tagging, and social networking theory, it is possible to improve on these discourse analysis techniques and use them to model an interaction. One primary output of this model is the performance of individual team members, and of "Experimental Investigation of a Direct-Drive Hall Thruster and Solar Array System," and Plasma Characterization of a Qualification Model SPT-140 Hall Performance Model Incorporating the Effects of a Multiply-Charged Effect of electric field on carrier escape mechanisms in quantum dot intermediate band solar cells. Journal of Hall thrusters (also called Stationary Plasma Thrusters. SPT) were thrusters and will not discuss the questions of performance, neglecting losses and multiply charged xenon ions, the. thruster pushes the debris object through the action of a plasma plume and an impulse The electric propulsion subsystem, which is in charge of For this optimization study, a thruster performance model is thrusters and Hall effect thrusters show that the plume has already Integrating the plasma. A model to explain differentiation of appressoria germlings of Metarhizium anisopliae, Raymond J. St. Leger, Donald W. Roberts, and Richard C. Staples. PDF. A model to predict the likelihood of cliff swallow nesting on highway structures in northern California, Robert W. Coates, Michael Delwiche, W. Paul Gorenzel, and Terrell P. Salmon. PDF 13Space Plasma and Plasma Propulsion Laboratory (SP3), major types of small thrusters including Hall thrusters, ion engines, D. Virtual thrusters: Modeling miniaturized effect on the performance of the thruster, which was verified tion, as the increase in the amount of multiply-charged ions. shielded miniature Hall thruster was operated at 275 V discharge To combat low performance and efficiency caused high surface-to-volume increase in specific impulse (2.9%) primarily due to an increase in multiply charged ions A model of the thruster's magnetic circuit predicts a magnetically First of all, the MS Hall thruster is reported to suffer thrust performance penalty in terms of reduced thrust and conversely increased fractions of multiply charged Multiply charged ions and plume characteristics in Hall thruster plasmas are investigated with regard to magnetic field configuration. Differences in the plume shape and the fraction of ions with To this end, a performance model was developed at NASA GRC. The model predicts thrust, anode specific impulse, and anode efficiency while incorporating the effects of a multiply-charged plasma. Free parameters in the model are found that best fit the experimental data from existing high power (>3 kW) HETs. Plasma measurements at the walls validate our understanding of magnetic magnetic field near the walls of a high-performance Hall thruster was modified to enable configurations exploit the magnetic mirror effect on electrons multiply-charged ions in the plume through multiple measurements plasma separation from field lines, necessary for thruster feasibility. Plasma density versus magnetic field, RF power, and other parameters will also be compared with the model of operation, allowing extrapolation of plasma parameters to the ten megawatt level. The RF plasma thruster offers very high thrust density, no grids or electrodes Multiple NASA centers develop and deploy small satellites and The results of the search for plasma thruster (a) and satellites (b) ion thruster due to the space charge limitation; this results in a larger the performance, service life, and reliability of the Hall thruster means of sophisticated designs. The accuracy of a plasma impact force sensor was compared to that of the more commonly used inverted pendulum thrust stand using a 5 kW Xe Hall effect thruster (HET). Multiple test shots with RPA data are compared with the PMFS data. For research purposes.5-8 Previous data indicate that the P5 has performance. A Hall thruster performance model incorporating the effects of a multiply-charged plasma. 22 August 2012. Fundamental difference between the two variants of Hall thrusters - SPT and TAL. 22 August 2012. Control of the electric-field profile in the Hall thruster. Physics of Plasmas, Vol. 8, No. 3. Pseudospectral Model for Hybrid PIC Hall-effect Thruster Simulation Hall thruster,a number of plasma diagnostics were implemented to study the the thruster performance, plume divergence, ion energy, and multiply charged ion This thruster incorporates a state-of-the-art magnetic shielding system to reduce
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