Download or read book Thermionic Converters and Low temperature Plasma written by Lorin Kay Hansen and published by . This book was released on 1978 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermionic Converters and Low temperature Plasma written by Lorin Kay Hansen and published by . This book was released on 1978 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Development of a Low Temperature Vapor Filled Thermionic Converter written by F. G. Block and published by . This book was released on 1962 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of a low-temperature, plasma, thermionic converter is described. The converter uses a third electrode to ionize plasma so as to neutralize the space charge. The lower temperature thus achieved should significantly prolong the life of the converter and contribute to the development of a more reliable power supply for space application. Research was directed toward optimizing geometry and operating characteristics and investigating the effects of temperature and pressure, starting pulse, magnetic fields, and operation in both series and parallel circuitry. Materials were investigated to achieve practical electrodes by determining compatibility of material, atmospheric corrosion, and gas permeation. Converters were fabricated, evaluated, and life tested with the parameters optimized by the test program.
Download or read book Plasma Properties in a Thermionic Converter written by R. H. BULLIS and published by . This book was released on 1964 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of the non-equilibrium plasma existing in the interelectrode space of the arc-mode converter were investigated with coaxial electrostatic Langmuir probes. Probe measurements were made as a function of cesium pressure, emitter temperature, interelectrode position and converter output in several low-temperature arc-mode converters. The plasma potential, was found to vary significantly across the interelectrode space. Both the existence of a retarding sheath for electrons very close to the emitter surface and a region farther from the emitter in which the variation in plasma potential is accelerating for electrons have been detected. Significant variations in the plasma potential existing in the space were observed with changes in emitter temperature, cesium pressure, and converter output. The electron energy distribution is non-Maxwellian with a significant number of electrons with energies in excess of 1.4 eV. However, from an analysis of the production and loss rates in the converter, there is an insufficient number of electrons, even in the accelerated electron energy distribution, to account for the enhanced degree of ionization observed in arc-mode operation by single stage electron-atom collisional ionization processes. Further analyses of the production and loss rates using the electron energy distribution indicate that ambipolar diffusion is the dominant loss process in the converter if the major ionic species is Cs(+). However, if the major ionic species in the converter is Cs sub 2(+), then recombination is the dominant loss mechanism. (Author).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DOE JPL Advanced Thermionic Technology Program Progress Report No 37 December 1978 January 1979 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing research on thermionic converters is described. Topics include thermionic converter plasma studies, low-temperature converter development, component hardware development, and combustion-heated thermionic device. JPL tasks include basic surface experiments, triode converter experiments, design of cylindrical converter, and high-efficiency conversion experiments. Experimental results are reported. (WHK).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974-03 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Analysis of a Thermionic Plasma Converter Operating in the Volume Ionization Mode written by Richard Walter Miksad and published by . This book was released on 1964 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Direct Energy Conversion in the USSR Thermionic Converters written by Library of Congress. Aerospace Technology Division and published by . This book was released on 1965 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: CONTENTS: Thermoelectron emission; Volt-ampere characteristic and difference of contact potential; Positive surface ionization and evaporation heats; Space-charge and its neutralization; Transport phenomena; Qualitative theory of plasma thermoelements; Classification schemes; Vacuum with current limited by space-charge; Vacuum with space-charge compensated (Anselm's theoretical study; Rectilinear-path mode; Ioffe's concept of a plasma thermocouple; Simple diffusion mode (Moyzhes-Pikus Theoretical Study); Phenomena at increased plasma pressures; Discharge mode (Baksht-Moyzhes Theoretical Study); Arc mode.
Download or read book Investigation of the Neutralization Plasma in Thermionic Converters written by Rodney J. Andersen and published by . This book was released on 1969 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was directed toward obtaining an improved understanding of the properties of the cesium neutralization plasma existing in ignited-mode thermionic converters. Toward this end an analysis was made of electron and ion transport phenomena based on conditions known to exist in thermionic converter plasmas. In support of this analysis, detailed measurements of electron density and temperature in the ignited-mode converter plasma were made using high resolution spectroscopic techniques. With this information, quantitative estimates were made of: the electric field intensity, the electron kinetic energy flux, the ion current density, and the charged particle production rate. On the basis of these results, an interpretation was made of the role played by the cesium neutralization plasma in determining converter performance. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Plasma Science and Technology written by Alexander Fridman and published by John Wiley & Sons. This book was released on 2024-02-05 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma Science and Technology An accessible introduction to the fundamentals of plasma science and its applications In Plasma Science and Technology: Lectures in Physics, Chemistry, Biology, and Engineering, distinguished researcher Dr. Alexander Fridman delivers a comprehensive introduction to plasma technology, including fulsome descriptions of the fundamentals of plasmas and discharges. The author discusses a wide variety of practical applications of the technology to medicine, energy, catalysis, coatings, and more, emphasizing engineering and science fundamentals. Offering readers illuminating problems and concept questions to support understanding and self-study, the book also details organic and inorganic applications of plasma technologies, demonstrating its use in nature, in the lab, and in both novel and well-known applications. Readers will also find: A thorough introduction to the kinetics of excited atoms and molecules Comprehensive explorations of non-equilibrium atmospheric pressure cold discharges Practical discussions of plasma processing in microelectronics and other micro-technologies Expert treatments of plasma in environmental control technologies, including the cleaning of air, exhaust gases, water, and soil Perfect for students of chemical engineering, physics, and chemistry, Plasma Science and Technology will also benefit professionals working in these fields who seek a contemporary refresher in the fundamentals of plasma science and its applications.
Download or read book Plasma Physics and Magnetohydrodynamics written by and published by . This book was released on 1963 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Theory of Thermionic Energy Converter with Variable Plasma Electron Temperature written by Albert Tiengtsung Yen and published by . This book was released on 1978 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermionic Energy Converter written by Dr. Walter L. Knecht and published by . This book was released on 1960 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Development of an Improved Thermionic Energy Converter written by and published by . This book was released on 1965-04 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
