Download or read book Experimental Magnetohydrodynamic Energy Extraction from a Pulsed Detonation written by Kaz I. Teope and published by . This book was released on 2015 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The high MWatt power available in a fuel-fed detonation wave, which contains combustion ions in the trailing gas, provides an opportunity for external power extraction via electromagnetically forced charged particle drift. Sets of experiments were accomplished using a pulsed detonation tube, extracting power across a load resistor in an electrical circuit with an applied electric or magnetic field to determine what magnitude of gas conductivity and power extraction could be attained from an unseeded or seeded pulsed detonation driven combustion. Due to the low magnetic field strength, even with flow seeding, the power extracted in this research was not enough for practical use, However, theoretical calculations with higher magnetic field strength and greater gas conductivity than was found in this research shoe promise for continued research. Future work would entail use of a stronger magnetic field to increase power extraction." -- author's abstract
Download or read book Integrated Pulse Detonation Propulsion and Magnetohydrodynamic Power written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-22 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prospects for realizing an integrated pulse detonation propulsion and magnetohydrodynamic (MHD) power system are examined. First, energy requirements for direct detonation initiation of various fuel-oxygen and fuel-air mixtures are deduced from available experimental data and theoretical models. Second, the pumping power requirements for effective chamber scavenging are examined through the introduction of a scavenging ratio parameter and a scavenging efficiency parameter. A series of laboratory experiments were carried out to investigate the basic engineering performance characteristics of a pulse detonation-driven MHD electric power generator. In these experiments, stoichiometric oxy-acetylene mixtures seeded with a cesium hydroxide/methanol spray were detonated at atmospheric pressure in a 1-m-long tube having an i.d. of 2.54 cm. Experiments with a plasma diagnostic channel attached to the end of the tube confirmed the attainment of detonation conditions (p2/p1 approximately 34 and D approximately 2,400 m/sec) and enabled the direct measurement of current density and electrical conductivity (approximately = 6 S/m) behind the detonation wave front, In a second set of experiments, a 30-cm-long continuous electrode Faraday channel, having a height of 2.54 cm and a width of 2 cm, was attached to the end of the tube using an area transition duct. The Faraday channel was inserted in applied magnetic fields of 0.6 and 0.95 T, and the electrodes were connected to an active loading circuit to characterize power extraction dependence on load impedance while also simulating higher effective magnetic induction. The experiments indicated peak power extraction at a load impedance between 5 and 10 Omega. The measured power density was in reasonable agreement with a simple electrodynamic model incorporating a correction for near-electrode potential losses. The time-resolved thrust characteristics of the system were also measured, and it was found that the NM interaction exer
Download or read book Pulse Detonation Rocket Magnetohydrodynamic Power Experiment written by R. J. Litchford and published by . This book was released on 2003 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Pulse Detonation Propulsion and Magnetohydrodynamic Power written by R. J. Litchford and published by . This book was released on 2001 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MHD Power Extraction from a Pulse Detonation Engine written by J.-L. Cambier and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosive Parameters for Magnetohydrodynamic Energy Conversion written by Marvin W. Burnham and published by . This book was released on 1963 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The explosive charge parameters related to the efficiency and utility of explosive energy sources for pulsed magnetohydrodynamic energy conversion were investigated. Experimental measurements were made of theoretically signif icant charge geometry and composition parameters. Good agreement with theory was observed and exceptionally high plasma conductivity was measured. A cavity shape, (called the W cavity) tending to produce a tubular conductor, was conceived and charges designed with such a cav-had a power generation capability of over 300% higher than that of charges with con ventional cavities. (Author).
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1975 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1986 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Naval Research Reviews written by and published by . This book was released on 1990 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Explosive Sources for Magnetohydrodynamic Energy Conversion Supplement 1 written by Marvin W. Burnham and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results are reported for peripherally initiated disc-shaped solid explosives. These produced a relative acceleration of the detonation wave near the charge axis. The results are compared with three approximate models. An energy model is compared with the more conventional pressure model. High pressure was induced in a portion of a long rectangular charge by shock. Rather high detonation wave propagation rates were observed in the shocked region. These rates were as high as nine times steady state if the maximum slope of the position-time result was used and as high as two times steady state velocity if the average rate over the approximate shocked region were used. The results are considered tentative. (Author).
Download or read book Fossil Energy Update written by and published by . This book was released on 1977 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-04 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pulsed Detonation Engine Experimental and Theoretical Review written by Shmuel Eidelman and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy a Continuing Bibliography with Indexes written by and published by . This book was released on 1983 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
