Download or read book Experimental and Theoretical Studies of Ignition and Combustion of Boron Particles in Wet and Dry Atmospheres written by Shui-Chi Li and published by . This book was released on 1990 with total page 300 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 1995 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ignition and Combustion of Single Boron Particles in Air at Ambient Pressure written by William H. McLain and published by . This book was released on 1970 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental and theoretical studies are reported which provide basic information concerning the ignition and combustion processes of amorphous, crystalline, gamma-irradiated, and LiF coated single boron particles. All studies were conducted at ambient pressure with particles or particle agglomerates between 30 and 50 microns in diameter. Boron particles were suspended in a levitation cell and ignited using a pulsed neodymium-doped laser. The burning processes were recorded in either self-light or shadowgraph. Within experimental error the burning time for amorphous boron and spherodized crystalline boron are the same indicating that the initial particle character has a minor effect on the liquid droplet burning time combustion process. Analytical studies were made concerning the unsteady heating of boron particles subjected to high flux rates. The theory of nonequilibrium thermodynamics is explored and it is demonstrated that engineering calculations based on the equilibrium hypothesis may predict mass flux rates 50 to 100 percent in error. (Author).
Download or read book Boron Based Fuel Rich Propellant written by WeiQiang Pang and published by CRC Press. This book was released on 2019-04-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron-Based Fuel-Rich Solid Rocket Propellant Technology is a professional book that systematically introduces the latest research progress for boron-based fuel-rich solid propellants. It covers surface modifications, coating and agglomerating techniques, granulation, and characterization of amorphous boron powders, and its application to fuel-rich solid rocket propellants. Technologies for controlling the processing methods and combustion performance of fuel-rich propellants are examined, and the book concludes with a summary of the research progress in boron-based fuel-rich solid propellants and a look forward to the foreseeable development trends of military applications.
Download or read book Combustion of Boron Particles Experiment and Theory written by Andrej Macek and published by . This book was released on 1962 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of the work was measurement of burning times of single boron particles as functions of three experimental variables: particle diameter d from 37 to 124 micrometers, pressure P from 0.17 to 35.0 atm, and mole fraction of oxygen in gas X from 0.1 to 1.0. Limited studies were also made in fluorine-containing gases without oxygen. The experiments were done by a previously described laser-ignition technique. In oxygen-containing gases measurable pre-ignition delays were observed, except at low pressures; they were not observed in the absence of oxygen. The effect of convection in these free-fall experiments was found to be significant at large values of d and P, and had to be taken into account in interpretation of the data. When d, P, and X are sufficiently high, the burning times are found to be inversely proportional to X, directly proportional to d squared, and independent of P. At low values of these parameters, burning times deviate from these scaling laws. (Author).
Download or read book 30th AIAA Thermophysics Conference written by and published by . This book was released on 1995 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decomposition Combustion and Detonation Chemistry of Energetic Materials written by Thomas B. Brill and published by . This book was released on 1996 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energetic materials are distinguished from other materials primarily by the fact that rapid, exothermic reactions can be induced with the release of gaseous products. This complex phenomenon cuts across many boundaries of chemistry (synthesis, kinetics, thermodynamics, spectroscopy, quantum and molecular dynamics calculations, etc.) and engineering physics (shock and detonation waves, hydrodynamics, fracture and solid mechanics, defects, etc.). This volume offers the latest chemistry advancements in understanding the complex dynamic processes in these materials in the condensed phase. The focus is on fundamental research into the rates and pathways of rapid exothermic reactions, product specification, diagnostic methods, molecular processes of energy transfer, and molecular processes at extreme pressure and temperature. Many novel materials are discussed.
Download or read book Studies of Slurry Droplet Combustion and Boron Particle Ignition written by Paul Joseph Antaki and published by . This book was released on 1985 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1989 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1990 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ignition and Combustion of Boron Particles in Hydrogen Oxygen Combustion Products at 30 to 150 Atmospheres written by Robert Oliver Foelsche and published by . This book was released on 1998 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combustion of Boron Based Solid Propellants Solid Fuel written by Kenneth K. Kuo and published by Springer. This book was released on 1993-01-04 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combustion of Boron Particles written by Andrej Macek and published by . This book was released on 1972 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ignition of Boron Particles written by John A. Simmons and published by . This book was released on 1971* with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of the Ignition and Combustion of Boron Particles for Air Augmented Rocket Applications written by and published by . This book was released on 1974 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the present work has been to characterize the nature of the primary exhaust from fuel-rich motors containing boron, and to study its ignition and combustion characteristics, especially as compared to the known information for pure boron. Section II of the present report describes (a) the rocket-motor firing program in which the condensed exhaust (CE) from two different composite ammonium perchlorate propellants was collected, and (b) the results of thermodynamic computations for these formulations. Sections III and IV contain the results of the physical (microscopy, density measurement) and chemical analyses of the CE. Section V deals with combustion of the CE. Finally, Sections VI and VII report the results of modeling studies describing the ignition of single boron particles in hot gas streams and propagation of flames in boron-oxygen-nitrogen dust clouds.
Download or read book Experimental and Modelling Studies of Ignition and Explosion in Combustible Atmospheres Induced by Heated Particles written by Venelin Alexandrov Stamatov and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
