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Gas Fed Pulsed Plasma Thrusters Fundamentals Characteristics And Scaling Laws
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Book Synopsis Gas-Fed Pulsed Plasma Thrusters: Fundamentals, Characteristics and Scaling Laws by :
Download or read book Gas-Fed Pulsed Plasma Thrusters: Fundamentals, Characteristics and Scaling Laws written by and published by . This book was released on 2000 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report presents the results of a three-year theoretical and experimental investigation into the fundamentals of gas-fed pulsed plasma thrusters (GF-PPTs). The primary goals were to deepen the basic understanding of how the performance of these devices can be optimized and scaled down to low pulse energies for application as efficient high-specific electric thrusters on small spacecraft. This final report gives a detailed overview of previous research, discusses the electromagnetic nature of the acceleration process, the effect of capacitance, electrode geometry, inductance-per-unit length, and discharge initiation on performance, and presents theoretically derived and experimentally verified performance scaling laws.
Book Synopsis Performance Scaling of Gas-fed Pulsed Plasma Thrusters by : John Kenneth Ziemer
Download or read book Performance Scaling of Gas-fed Pulsed Plasma Thrusters written by John Kenneth Ziemer and published by . This book was released on 2001 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Plasma Technology - Two Volume Set by : J. Leon Shohet
Download or read book Encyclopedia of Plasma Technology - Two Volume Set written by J. Leon Shohet and published by CRC Press. This book was released on 2016-12-12 with total page 1654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical plasmas have a wide range of industrial applications. The Encyclopedia of Plasma Technology covers all aspects of plasma technology from the fundamentals to a range of applications across a large number of industries and disciplines. Topics covered include nanotechnology, solar cell technology, biomedical and clinical applications, electronic materials, sustainability, and clean technologies. The book bridges materials science, industrial chemistry, physics, and engineering, making it a must have for researchers in industry and academia, as well as those working on application-oriented plasma technologies. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]
Book Synopsis Performance of Gas-fed Pulsed Plasma Thrusters Using Water Vapor Propellant by : John K. Ziemer
Download or read book Performance of Gas-fed Pulsed Plasma Thrusters Using Water Vapor Propellant written by John K. Ziemer and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Electric Propulsion by : Dan M. Goebel
Download or read book Fundamentals of Electric Propulsion written by Dan M. Goebel and published by John Wiley & Sons. This book was released on 2008-12-22 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. The authors provide an introduction to plasma physics in order to allow readers to understand the models and derivations used in determining electric thruster performance. They then go on to present detailed explanations of: Thruster principles Ion thruster plasma generators and accelerator grids Hollow cathodes Hall thrusters Ion and Hall thruster plumes Flight ion and Hall thrusters Based largely on research and development performed at the Jet Propulsion Laboratory (JPL) and complemented with scores of tables, figures, homework problems, and references, Fundamentals of Electric Propulsion: Ion and Hall Thrusters is an indispensable textbook for advanced undergraduate and graduate students who are preparing to enter the aerospace industry. It also serves as an equally valuable resource for professional engineers already at work in the field.
Book Synopsis Performance Characterization of a High Efficiency Gas-fed Pulsed Plasma Thruster by : John K. Ziemer
Download or read book Performance Characterization of a High Efficiency Gas-fed Pulsed Plasma Thruster written by John K. Ziemer and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 2000-3100 - 2000-3149 by :
Download or read book 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 2000-3100 - 2000-3149 written by and published by . This book was released on 2000 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dimensionless Performance Model for Gas-fed Pulsed Plasma Thrusters by : John K. Ziemer
Download or read book Dimensionless Performance Model for Gas-fed Pulsed Plasma Thrusters written by John K. Ziemer and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scaling Laws and Electron Properties in Hall Effect Thrusters by : Käthe Dannenmayer
Download or read book Scaling Laws and Electron Properties in Hall Effect Thrusters written by Käthe Dannenmayer and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: All satellites need a propulsion system for orbit correction maneuvers. Electric Hall effect thrusters are an interesting technology for space applications. The big advantage compared to chemical propulsion devices is the higher specific impulse Isp, a higher ejection speed and thus a substantial gain in terms of propellant consumption. In a Hall effect thruster the ions are created and accelerated in a low pressure discharge plasma in a magnetic field. The first part of the work concerns scaling laws for Hall effect thrusters. A semi-empirical scaling model based on analytical laws and relying on simplifying assumptions is developed. This scaling model can be used to extrapolate existing thruster technologies in order to meet new mission requirements. In a second part, the influence of the channel width on the thruster performance level is investigated. It has been demonstrated that enlarging the channel width of a low power Hall effect thruster leads to an increase in thruster efficiency. Finally, electron properties are measured by means of electrostatic probes in the plume of different Hall effect thrusters. Experimental data on electron properties is of great interest for the validation of numerical plume models that are essential for the integration of the thruster on the satellite. Time-averaged and timeresolved measurements of the electron properties have been carried out for different operating conditions of the thruster. A fast-moving probe system has been developed in order to perform measurements of the electron properties close to the thruster exit plane.
Book Synopsis High Efficiency Pulsed Plasma Thruster for Satellite Attitude Control and Maneuver by :
Download or read book High Efficiency Pulsed Plasma Thruster for Satellite Attitude Control and Maneuver written by and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this project was to develop Gas-Fed Pulsed Plasma Thrusters (GF-PPT) that can be used with water vapor or hydrazine as fuel, with vapor pressures of less than 1 Torr necessary to operate the thruster. This propulsion technology can be used to perform orbit phase changes or plane (inclination) changes for near and intermediate-earth orbit satellites. GF-PPT technology is particularly suited for large DELTA-V, in-plane, orbit phase changes. This technology can therefore complement resistojet technology and allow rapid constellation redeployment to insure prompt satellite coverage of conflicts at any location on the surface of the earth with a constellation of satellites optimized for minimum size and cost. This report discusses GF-PPT thruster performance scaling, as well as hardware and power electronics that were developed in this project.
Book Synopsis Numerical Simulation of Pulsed Plasma Thruster by : Jianjun Wu
Download or read book Numerical Simulation of Pulsed Plasma Thruster written by Jianjun Wu and published by Springer. This book was released on 2024-11-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book are valuable in gaining an understanding of the working mechanism of pulsed plasma thrusters. It facilitates the evaluation of the thruster's working characteristics and propulsive performance, thereby providing a crucial theoretical foundation and reference for the design, development, and engineering application of pulsed plasma thrusters. Additionally, this book significantly contributes to the advancement of space electric propulsion technology. Researchers and engineers in the aerospace propulsion field can greatly benefit from the insights presented within this book. This is an open access book.
Book Synopsis Modeling of Ablation-fed Pulsed Plasma Thrusters by : Peter J. Turchi
Download or read book Modeling of Ablation-fed Pulsed Plasma Thrusters written by Peter J. Turchi and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Arc Measurements and Performance Characteristics of a Co-axial Pulsed Plasma Thruster by : Stewart S. Bushman
Download or read book Arc Measurements and Performance Characteristics of a Co-axial Pulsed Plasma Thruster written by Stewart S. Bushman and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics of Electric Propulsion by : Robert G. Jahn
Download or read book Physics of Electric Propulsion written by Robert G. Jahn and published by Courier Corporation. This book was released on 2006-05-26 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Literaturangaben. - Originally published: New York, NY : McGraw-Hill, 1968
Book Synopsis Theoretical Modeling and Optimization of Ablation-fed Pulsed Plasma Thrusters by : Yiangos George Mikellides
Download or read book Theoretical Modeling and Optimization of Ablation-fed Pulsed Plasma Thrusters written by Yiangos George Mikellides and published by . This book was released on 1999 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Theoretical modeling of ablation-fed, pulsed plasma thrusters (PPTs) with the MACH2 code has shown that after repeated pulsed operation, the total expelled mass is due to ablation during the discharge and solid decomposition that persists long after the pulse. The latter mass does not considerably contribute to the impulse-bit thus degrading thruster performance. For the rectangular PPT geometry, optimizing current waveforms in combination with channel widths are presented, that utilize all decomposed mass, electromagnetically. These waveforms are characterized by short rise times (1 [mu]sec) and prolonged decays (25 [mu]sec). Simplified modeling based on steady-state, one-dimensional flow reveals that the mass flow rate varies linearly with the square of the magnetic field and that the downstream flow speed is driven towards the Alfven wave speed when the magnetic pressure is much greater than the gasdynamic pressure. The model has been confirmed by MACH2. The mass flow requirement for such magnetosonic flow in turn, determines the surface temperature of the solid.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Thrust Mechanisms in a Water Fed Pulsed Plasma Thruster by : Carsten A. Scharlemann
Download or read book Investigation of Thrust Mechanisms in a Water Fed Pulsed Plasma Thruster written by Carsten A. Scharlemann and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Analytic models predict the possibility of extending the range of performance parameters of Pulsed Plasma Thrusters (PPT) by using propellants other than the traditionally used Teflon. A theoretical and experimental effort was initiated at The Ohio State University to investigate the use of alternative propellants for PPT. Analytical and numerical calculations (MACH2) indeed indicate a significant broadening of the obtainable range of specific impulse and thrust-to-power ratios when alternative propellants such as lithium or water are utilized. Consequently, in an effort to investigate changes in physical phenomena and thruster performance experimentally, a hybrid thruster was designed and built, facilitating the use of alternatively water or Teflon. The thruster design includes a unique water propellant feed system, allowing the supply of the water propellant without detrimentally affecting the inherent simplicity of the PPT system. ii The thruster operation and performance was investigated by several different diagnostic methods, including current and voltage measurements, Langmuir probes, and magnetic field probes. Furthermore, impact pressure measurements in the plume of the thruster allowed new insight into the plume structure and the accurate evaluation of impulse bits. Employment of the diagnostic methods for Teflon and water propellant enabled the unambigous identification of propellant related effects such as reduced electron temperature and higher exhaust velocites in the case of water propellant. The electromagnetic nature of the water thruster was clearly identified. For 30 J discharge energy, the water thruster requires only 5% of the mass bit of a Teflon thruster to produce an impulse bit 30% of the magnitude of the Teflon thruster, suggesting greatly increased propellant efficiencies. In agreement with the plasma diagnostic results, a specific impulse for the water thruster of up to 8000 s and efficiencies of up to 16% were evaluated.
