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Development Of Advanced Boron Slurry Fuel Formulations
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Book Synopsis Development of Advanced Boron Slurry Fuel Formulations by : Robert L. Durfee
Download or read book Development of Advanced Boron Slurry Fuel Formulations written by Robert L. Durfee and published by . This book was released on 1967 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vacuum-drying of ball-milled boron was found to eliminate hydrogen gas formation and accompanying bulk volume reductions in stored samples of JP-4 based boron slurries. Density reductions in stored isopropanol-based slurries was found to result from air dissolved in the carrier. No deterioration of rheological or combustion properties resulting from vacuum-drying of the boron was observed. Two promising slurry formulations optimized for low-temperature rheological properties were developed. Both of these formulations contained methyl isobutyl ketone (MIBK) mixed with gelled JP-4 in the carrier phase. The rheological goals set for this program of 400 poise viscosity at -65 F and 1/100 sec shear rate and 12 lb/sq ft yield stress at -65 F were met by both of the two promising formulations. Combustion performance for the mixed-carrier slurries (gelled JP-4 plus MIBK) was equal to or better than that of similar formulations containing no ketone. Both of the promising formulations exhibited Newtonian rheological properties over the shear rate range covered 1/100 sec to about 1/20,000 sec at temperatures of -30F or above. The viscosity of each was about five poise at 70 F, over a shear rate range from 1/50 sec to 1/50,000 sec. An increase in solids loading to 76 per cent boron appeared to increase viscosity at 70 F and -30F by roughly a factor of two, and each of the 76 per cent formulations exhibited essentially Newtonian rheological properties at both temperatures. (Author).
Book Synopsis SLURRY FUEL PERFORMANCE STUDIES. by : Robert L. Durfee
Download or read book SLURRY FUEL PERFORMANCE STUDIES. written by Robert L. Durfee and published by . This book was released on 1966 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program was concerned with the development, characterization and combustion testing of advanced boron slurry fuels for use in low-altitude ramjet-powered missiles. Three types of boron were used: commercial grade, submicron, and ultra-fine, high purity boron. Through extensive ball-milling of the submicron and ultra-fine powders, slurries could be formulated (in ungelled JP-4 carrier) which were competitive with standard commercial-grade formulations in volumetric heat release, rheology, and stability. Other formulation work resulted in the optimization of a 1965 'workhorse' formulation (basic formulation of 73 per cent ball-milled boron in gelled JP-4) and a slurry of washed boron in isopropanol which can be loaded to a maximum solids content of about 80 per cent. The most critical trade-off among slurry properties is between storage stability and rheology (yield stress and viscosity) at low temperatures. Based on work at the University of Dayton Research Institute, the apparent viscosities of 'standard', shelf-storable slurries of 73 per cent boron in JP-4 and 75 per cent boron in isopropanol at 100/sec shear rate and -65 F are about 5,000 poise and 4,000 poise, respectively. Reduction of these values appears to be one of the most immediate problems in future boron slurry development.
Book Synopsis Technical Abstract Bulletin by : Defense Documentation Center (U.S.)
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1967 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preparation and Properties of Concentrated Boron-hydrocarbon Slurry Fuels by : Irving A. Goodman
Download or read book Preparation and Properties of Concentrated Boron-hydrocarbon Slurry Fuels written by Irving A. Goodman and published by . This book was released on 1954 with total page 42 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 1990 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis RESEARCH ON OPERATIONAL SLURRY FUELS. by : Herbert A. Bartick
Download or read book RESEARCH ON OPERATIONAL SLURRY FUELS. written by Herbert A. Bartick and published by . This book was released on 1968 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two boron slurries were developed under this program to meet the Air Force operational criteria for use in a low altitude, supersonic ramjet propulsion system. One of these slurries contains a solids (boron) loading of 73 per cent, and the other contains 76 per cent boron by weight. Both were compounded with 2,2,5-trimethylhexane (TMH) carrier, Arlacel-83 wetting agent, and the AlMB-2 experimental gellant of Shell Development Corporation. Viscosity determinations of these slurries at 70 F showed that the 73 per cent boron slurry (TSAR-2.00) had a viscosity of 5 poise. The viscosity of the 76 per cent by weight boron slurry (TSAR-1.75-76) at the same conditions were 10 poise. Viscosity values for these slurries at -65F were 175 poise (73 per cent boron slurry-TSAR-2.00) and 330 poise (76 per cent boron slurry-TSAR-1.75-76). Both of these slurries show excellent room temperature storage properties, no degradation of physical properties under thermal cycling conditions, no gas formation, and good dynamic stability. The combustion efficiencies of both of these slurries were between 65 and 70 per cent at Mach 2.5 sea level, cold day at a fuel-to-air ratio of 0.024 as determined on the ARC 3.5-inch Micro-Ramjet Engine. These efficiencies are very similar to those obtained on this engine for previous 'work-horse'-type slurry formulations.
Book Synopsis Boron-Based Fuel-Rich Propellant by : WeiQiang Pang
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 433 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.
Book Synopsis Notices of Changes in Classification, Distribution and Availability by :
Download or read book Notices of Changes in Classification, Distribution and Availability written by and published by . This book was released on 1983 with total page 350 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 1985-02 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Science and Astronautics Publisher : ISBN 13 : Total Pages :146 pages Book Rating :4.F/5 ( download)
Book Synopsis Boron High Energy Fuels by : United States. Congress. House. Committee on Science and Astronautics
Download or read book Boron High Energy Fuels written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1959 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Committee Serial No. 40. Investigates Navy and Air Force decision to dispense with concept of utilizing boron for high energy fuel for aircraft, following 5 year period during which plant facilities were developed for its production.
Book Synopsis Preparation of 50 Percent Boron-hydrocarbon Slurries Using Combinations of Glycerol Sorbitan Laurate with Various Thickeners by : Irving A. Goodman
Download or read book Preparation of 50 Percent Boron-hydrocarbon Slurries Using Combinations of Glycerol Sorbitan Laurate with Various Thickeners written by Irving A. Goodman and published by . This book was released on 1955 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-energy Combustion Agents of Organic Borohydrides by : XiaoHong Zhang
Download or read book High-energy Combustion Agents of Organic Borohydrides written by XiaoHong Zhang and published by Royal Society of Chemistry. This book was released on 2023-08-25 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion agents for solid fuel propellants and explosives have gained widespread interest in recent years. Their high gravimetric heat of combustion enhances the performance of modern energetic materials. Borohydride compounds have proved to be excellent candidates in this application. High-energy Combustion Agents of Borohydrides covers the most recent developments in the advanced combustion agents of borohydrides. Experimental studies covering the synthesis and characterisation of borohydrides are examined, as well as the interactions between borohydride and propellant ingredients. The properties of BHN/nano Al composites are discussed, as is the effect of borohydrides on the properties of fuel-rich solid propellants. The book concludes with a summary of the prospective development of high-energy combustion agents in solid propellants and explosives, and looks into the future development of military applications. Authored by renowned experts in the field, this book will appeal to researchers in academia and industry seeking a better understanding of how to improve the ignition and combustion performance of propellants and explosives.
Book Synopsis Pharmacology and Toxicology of Propellant Fuels by : James H. Merritt
Download or read book Pharmacology and Toxicology of Propellant Fuels written by James H. Merritt and published by . This book was released on 1966 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The data from recent animal experiments should prove useful in developing a rational therapy for boron hydride poisoning so that in the future the toxicity of these compounds should not be as great a deterrent to their use as at present.
Book Synopsis Combustion of Boron Based Solid Propellants & Solid Fuel by : Kenneth K. Kuo
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:
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 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gasification of Boron Oxide Drops and Boron Slurry Agglomerates in Combustion Gases by : S. R. Turns
Download or read book Gasification of Boron Oxide Drops and Boron Slurry Agglomerates in Combustion Gases written by S. R. Turns and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The behavior of boron oxide drops as well as agglomerates of boron particles, which are formed during the combustion of boron slurry fuels, was studied in the post flame region of a flat-flame burner. Individual particles having initial diameters of 150-800 microns were supported on a probe and could be rapidly placed in the gas environment. Measurements were made of the variation of particle electron microscope. Burner operating conditions were varied to give fuel equivalence ratios in the range 0.3-0.7 and gas temperatures in the range 1500-1975 K at atmospheric pressure. Flame environments both with and without water vapor present were considered. Results show that boron oxide gasification is a relatively slow process with 1000 micron initial diameter drop lifetimes ranging from two minutes to two hours. The presence of water vapor speeds gasification, as suggested by King, and probably accounts for the shorter ignition delays observed for the oxidation of boron particles in wet environments.
Book Synopsis Boron-Based Fuel-Rich Propellant by : Weiqiang Pang
Download or read book Boron-Based Fuel-Rich Propellant written by Weiqiang Pang and published by CRC Press. This book was released on 2019 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.
