Download or read book Boron Ignition Limit Curve as Determined by a Shock Tube Study written by James T. Jones (CAPT, USAF.) and published by . This book was released on 1969 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boron Ignition Limit Curve as Determined by a Shock Tube Study written by James T. Jones and published by . This book was released on 1969 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A shock tube was employed to establish ignition limit curves for two particle sizes of boron. The particles were ignited in air by the temperature rise behind the reflected shock wave. Results show that the ignition temperature for .015 micron particles increases linearly with pressure from 1130 K at 6 atm to 1170 K at 130 atm. For 30-50 micron agglomerated particles (1-2 micron primary size) the ignition temperature decreases initially to 1390 K at 20 atm but then increases linearly to 1420 K at 130 atm. In addition, preliminary information was obtained on ignition delay time for both particles. (Author).
Download or read book A Shock Tube Study of the Ignition Limit of Boron Particles written by Robert T. Uda and published by . This book was released on 1968 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: A shock tube study was conducted to determine the ignition limit of clouds of boron particles. The ignition limit is an experimentally determined curve, plotted on temperature-pressure coordinates, separating the ignition and no ignition zones. A 3-inch inside diameter constant area shock tube employing a helium/air gas system was used for igniting the boron particles. The particles were ignited in the high temperature region behind the reflected shock wave. The boron samples used were 30-50 micron diameter agglomerates (1-2 micron primary particles) and 0.015 micron diameter particles. Ignition delay time of 0.015 micron particles was also obtained. (Author).
Download or read book A Shock Tube Study of the Ignition Limit of Boron Particles written by Robert T. Uda (1LT, USAF.) and published by . This book was released on 1968 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock Tube Studies of Boron Particle Ignition written by Harold F Chambers (Jr) and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A shock tube technique has been developed to allow the separation of heatup from ignition delay time for a metal particle. An analytical model was formulated to predict the position, velocity and temperature of a boron particle in the shock tube as a function of time. The model was used to determine ignition delay time and particle temperature at ignition. Ignition delay times were measured for boron particles of nominally one micron diameter. Particle size and shape diagnostics were conducted by means of scanning electron microscope and floatation tests. Shock tube experiments were conducted using mixtures of ten, twenty, and fifty percent oxygen in argon. Particle ignition occurred over a range of 2200K to 3600K and 100 to 400 psia. Ignition delay was shown to vary directly with particle diameter and inversely with gas temperature and oxidizer pressure. The data were used to calculate an activation energy for the boron ignition reaction. Particle temperature at ignition was calculated. (Modified author abstract).
Download or read book Ignition of Boron Particles in a Shock Tube Using Emission Spectroscopy written by Martin John Spalding and published by . This book was released on 1996 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ignition Dynamics of Boron Particles in a Shock Tube written by Thomas J. Rood and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Papers of the Meetings written by Combustion Institute Western States Section and published by . This book was released on 1971 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boron Particle Ignition and Combustion in a Shock Tube Using Time resolved Spectroscopy written by Martin John Spalding and published by . This book was released on 2000 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock Tube Ignition and Combustion of Boron Particles in Oxygen with Fluorine Compounds written by Stephen Robert Pirman and published by . This book was released on 1994 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock Tube Ignition of Boron Particles in Oxygen with Infrared Detection of Boron Oxide Removal written by Thomas John Rood and published by . This book was released on 1997 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States written by and published by . This book was released on 1968 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Shock Tube Study of Boron Particle Motion written by Channing W. Posson and published by . This book was released on 1970 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Master s Theses and Doctoral Dissertations in the Pure and Applied Sciences written by and published by . This book was released on 1970 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Shock Tube Study of the Ignition Delay of Hydrogen air Mixtures Mear the Second Explosion Limit written by Roger Ronald Craig and published by . This book was released on 1966 with total page 62 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 1991 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock Tube Study of the Ignition and Combustion of Aluminum written by J. F. Driscoll and published by . This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project is to obtain data that will help identify the reaction mechanism and the ignition limits of aluminum at elevated temperatures and pressures. Formidable problems arise when attempting such measurements in rocket motors since conditions are unsteady and not easy to control. Therefore, it was decided to mount a pure aluminum sample to the end wall of a shock tube and to ignite the sample using a reflected shock wave. The pressures and temperatures that can be achieved (40 atm, 5000 K) are typical of rocket motor conditions and are much higher than those obtained in previous studies using incident shock waves in conventional shock tubes. The aluminum sample reacts with a test gas in which the proportions of nitrogen, hydrogen, oxygen and chlorine are the same as found in ammonium perchlorate.
