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Multimegawatt Quasi Steady Mpd Thruster Facility
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Book Synopsis Multimegawatt Quasi-Steady MPD Thruster Facility by :
Download or read book Multimegawatt Quasi-Steady MPD Thruster Facility written by and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The multi-megawatt, quasi-steady MPD thruster facility at the Air Force Phillips Laboratory is now fully operational. This operational status is the result of many modifications and improvements completed in the past year. An update of facility capabilities and operation is presented. In particular the vacuum, propellant, and electrical systems are described, followed by a description of an impulse thrust stand and diagnostics capabilities. Finally, preliminary NPD thruster test results are presented.
Book Synopsis MPD (Magnetoplasmadynamic) Thruster Advanced Pumping System Concepts by : S. K. Bhattacharyya
Download or read book MPD (Magnetoplasmadynamic) Thruster Advanced Pumping System Concepts written by S. K. Bhattacharyya and published by . This book was released on 1987 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetoplasmadynamic (MPD) thrusters have a number of features that make them attractive for use in several intermediate term missions planned by the U.S. Air Force and Nasa. Theoretical studies and laboratory scale pulsed tests performed to date have established the basic characteristics of MPD thrusters and have provided a basis for optimism regarding their eventual performance. The high (multimegawatt) power sources for space use currently being developed in the Strategic Defense Initiative can be adapted for use with MPD thrusters. Given these conditions, a major requirement for MPD thruster development is the availability of a suitable prototype test facility since successful development of multimegawatt MPD thrusters will depend, to a great extent, on testing them under realistic steady characteristics, life cycle expectancy, electrode erosion rates, and other data essential to the design of working thrusters. The major technical obstacle for ground testing of MPD thrusters in a space simulation facility is the inability of state-of-the-art vacuum systems to provide the tremendous pumping speeds that are required for multimegawatt MPD thrusters. This is true for other types of electric propulsion devices as well. This report discusses the efforts of a first phase or an evaluation of steady state MPD thruster test facilities and addresses the conceptual design of vacuum pumping concepts for this application were evaluated and are reported herein.
Book Synopsis Performance of a Quasi-steady, Multi Megawatt, Coaxial Plasma Thruster by :
Download or read book Performance of a Quasi-steady, Multi Megawatt, Coaxial Plasma Thruster written by and published by . This book was released on 1994 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721674350 Total Pages :34 pages Book Rating :4.6/5 (743 download)
Book Synopsis High Power Mpd Thruster Performance Measurements by : National Aeronautics and Space Administration (NASA)
Download or read book High Power Mpd Thruster Performance Measurements written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: High power magnetoplasmadynamic (MPD) thrusters are being developed as cost effective propulsion systems for cargo transport to lunar and Mars bases, crewed missions to Mars and the outer planets, and robotic deep space exploration missions. Electromagnetic MPD thrusters have demonstrated, at the laboratory level, the ability to process megawatts of electrical power while providing significantly higher thrust densities than electrostatic electric propulsion systems. The ability to generate higher thrust densities permits a reduction in the number of thrusters required to perform a given mission, and alleviates the system complexity associated with multiple thruster arrays. The specific impulse of an MPD thruster can be optimized to meet given mission requirements, from a few thousand seconds with heavier gas propellants up to 10,000 seconds with hydrogen propellant. In support of programs envisioned by the NASA Office of Exploration Systems, Glenn Research Center is developing and testing quasi-steady MW-class MPD thrusters as a prelude to steady state high power thruster tests. This paper provides an overview of the GRC high power pulsed thruster test facility, and presents preliminary performance data for a quasi-steady baseline MPD thruster geometry. LaPointe, Michael R. and Strzempkowski, Eugene and Pencil, Eric Glenn Research Center NASA/TM-2004-213226, AIAA Paper 2004-3467, E-14733
Book Synopsis Evaluation of a Steady State MPD Thruster Test Facility by :
Download or read book Evaluation of a Steady State MPD Thruster Test Facility written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The successful development of multimegawatt MPD thrusters depends, to a great extent, on testing them under steady state high altitude space conditions. Steady state testing is required to provide thermal characteristics, life cycle, erosion, and other essential data. the major technical obstacle for ground testing of MPD thrusters in a space simulation facility is the inability of state-of-the-art vacuum systems to handle the tremendous pumping speeds required for multimegawatt MPD thrusters. This is true for other types of electric propulsion devices as well. This paper discusses the results of the first phase of an evaluation of steady state MPD thruster test facilities. The first phase addresses the conceptual design of vacuum systems required to support multimegawatt MPD thruster testing. Three advanced pumping system concepts were evaluated and are presented here.
Book Synopsis Performance of a Quasi-Steady, Multi Megawatt, Coaxial Plasma Thruster by : National Aeronaut Administration (Nasa)
Download or read book Performance of a Quasi-Steady, Multi Megawatt, Coaxial Plasma Thruster written by National Aeronaut Administration (Nasa) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-10 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Los Alamos National Laboratory Coaxial Thruster Experiment (CTX) has been upgraded to enable the quasisteady operation of magnetoplasmadynamic (MPD) type thrusters at power levels from 2 to 40 MW for 10 ms. Diagnostics include an eight position, three axis magnetic field probe to measure magnetic field fluctuations during the pulse; a triple Langmuir probe to measure ion density, electron temperature, and plasma potential; and a time-of-flight neutral particle spectrometer to measure specific impulse. Here we report on the experimental observations and associated analysis and interpretation of long-pulse, quasisteady, coaxial thruster performance in the CTX device. Scheuer, Jay T. and Schoenberg, Kurt F. and Henins, Ivars and Gerwin, Richard A. and Moses, Ronald W., Jr. and Garcia, Jose A. and Gribble, Robert F. and Hoyt, Robert P. and Black, Dorwin C. and Mayo, Robert M. Unspecified Center...
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 1994 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781729420645 Total Pages :62 pages Book Rating :4.4/5 (26 download)
Book Synopsis Preliminary Investigation of Power Flow and Electrode Phenomena in a Multi-Megawatt Coaxial Plasma Thruster by : National Aeronautics and Space Adm Nasa
Download or read book Preliminary Investigation of Power Flow and Electrode Phenomena in a Multi-Megawatt Coaxial Plasma Thruster written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper summarizes preliminary experimental and theoretical research that was directed towards the study of quasisteady-state power flow in a large, un-optimized, multi-megawatt coaxial plasma thruster. The report addresses large coaxial thruster operation and includes evaluation and interpretation of the experimental results with a view to the development of efficient, steady-state megawatt-class magnetoplasmadynamic (MPD) thrusters. Schoenberg, Kurt and Gerwin, Richard and Henins, Ivars and Mayo, Robert and Scheuer, Jay and Nurden, Glen Unspecified Center...
Download or read book 92-3135 - 92-3164 written by and published by . This book was released on 1992 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Solid Propellant Quasi-steady MPD Thrusters with Self-applied Magnetic Field by : Giorgio Paccani
Download or read book Solid Propellant Quasi-steady MPD Thrusters with Self-applied Magnetic Field written by Giorgio Paccani and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference by :
Download or read book 30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference written by and published by . This book was released on 1994 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of a Pulsed Quasi-steady MPD Thruster and Associated Subsystems by :
Download or read book Evaluation of a Pulsed Quasi-steady MPD Thruster and Associated Subsystems written by and published by . This book was released on 1972 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Power MPD Thruster Development at the NASA Glenn Research Center by : Michael R. LaPointe
Download or read book High Power MPD Thruster Development at the NASA Glenn Research Center written by Michael R. LaPointe and published by . This book was released on 2001 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Continuous Operation Test of Quasi-steady MPD Thruster with a Ring Coil by : M. Sakiyama
Download or read book Continuous Operation Test of Quasi-steady MPD Thruster with a Ring Coil written by M. Sakiyama and published by . This book was released on 1987 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Investigation of Power Flow and Electrode Phenomena in a Multi-megawatt Coaxial Plasma Thruster by : Kurt F. Schoenberg
Download or read book Preliminary Investigation of Power Flow and Electrode Phenomena in a Multi-megawatt Coaxial Plasma Thruster written by Kurt F. Schoenberg and published by . This book was released on 1993 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1994 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Power Steady State MPD Thruster by : Monika Auweter-Kurtz
Download or read book High Power Steady State MPD Thruster written by Monika Auweter-Kurtz and published by . This book was released on 1990 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rotation symmetric magnetoplasmadynamic thrusters with self induced magnetic fields are investigated at higher current levels in a steady state operation mode. Three thruster development lines are followed: (a) watercooled nozzle type thrusters, (b) partly radiation cooled nozzle type thrusters, and (c) cylindrical watercooled thrusters. The goal to get 1 MW steady state power input could not be reached in the contract period because of two reasons: the heatflux into the nozzle throat of the investigated DT2 thruster got to unacceptable high values, which has to be overcome by a new construction and both for the nozzle type and cylindrical thrusters the cathode raised problems at high current densities: the thorium oxide agglomerates and the cathodes begin to melt out of their inner zones and become destroyed. Keywords: Steady state magnetoplasmadynamic thrusters; Electric propulsion; Cathodes.
