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Effects Of Aluminum Composition And Particle Size On Burning Rates And Spontaneous Reignitions Of Solid Propellants
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Book Synopsis Effects of Aluminum Composition and Particle Size on Burning Rates and Spontaneous Reignitions of Solid Propellants by : Rodger Orval Anderson
Download or read book Effects of Aluminum Composition and Particle Size on Burning Rates and Spontaneous Reignitions of Solid Propellants written by Rodger Orval Anderson and published by . This book was released on 1967 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Effect of Aluminum Size and Loading on the Burning Rate of Solid Propellants Under Acceleration by : G. Burton Northam
Download or read book Experimental Investigation of the Effect of Aluminum Size and Loading on the Burning Rate of Solid Propellants Under Acceleration written by G. Burton Northam and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Composition on Combustion of Solid Propellants During a Rapid Pressure Decrease by : Carl C. Ciepluch
Download or read book Effect of Composition on Combustion of Solid Propellants During a Rapid Pressure Decrease written by Carl C. Ciepluch and published by . This book was released on 1962 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Solid Propellant Binder on the Formation and Evolution of Aluminum Combustion Products by :
Download or read book The Effect of Solid Propellant Binder on the Formation and Evolution of Aluminum Combustion Products written by and published by . This book was released on 1996 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Novel particle collection and high speed photography techniques have been used to study the combustion behavior of an inert binder (IB) propellant and an energetic binder (EB) propellant. Both contained 18% aluminum and 37% coarse AP in order to provide very similar geometrical structures, and both propellants had essentially common burning rates. The aluminum combustion efficiency is higher and the characteristic agglomerate size is significantly smaller for the EB propellant than for the IB propellant (at 43 atm the agglomerate size, D43, was 190 micrometers for the EB propellant and 670 micrometers for the IB propellant). At 7.5 atm the characteristic roughness of the burning surface is about 300 micrometers for the EB propellant and about 800 micrometers for the IB propellant. X-ray photography and visual observations of quenching particles show that similar sized agglomerates can differ significantly in structure and aluminum content, and there is some indication of internal voids (i.e. low density). This appears to be a result of the different initial conditions that the agglomerates are exposed to when they initially form at the surface. The size distribution of fine oxide particles was not dependent on either pressure or the propellant binder (or on the size of agglomerates). The fine particle mass size distribution (i.e. the smoke) was observed to have 3 modal sizes, approx. 1, 3.5, and 7 micrometers.
Book Synopsis Effect of Oxidizer Particle Size on Solid-propellant Combustion Stability by : Gerald Morrell
Download or read book Effect of Oxidizer Particle Size on Solid-propellant Combustion Stability written by Gerald Morrell and published by . This book was released on 1965 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Propellant Composition Variables on Accleration-induced Burning-rate Augmentation of Solid Propellants by : G. Burton Northam
Download or read book Effects of Propellant Composition Variables on Accleration-induced Burning-rate Augmentation of Solid Propellants written by G. Burton Northam and published by . This book was released on 1972 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Normal Acceleration on Transient Burning-rate Augmentation of an Aluminized Solid Propellant by : G. Burton Northam
Download or read book Effects of Normal Acceleration on Transient Burning-rate Augmentation of an Aluminized Solid Propellant written by G. Burton Northam and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instantaneous burning rate data for a polybutadiene acrylic acid propellant, containing 16 weight percent aluminum, were calculated from the pressure histories of a test motor with 96.77 sq cm of burning area and a 5.08-cm-thick propellant web. Additional acceleration tests were conducted with reduced propellant web thicknesses of 3.81, 2.54, and 1.27 cm. The metallic residue collected from the various web thickness tests was characterized by weight and shape and correlated with the instantaneous burning rate measurements. Rapid depressurization extinction tests were conducted in order that surface pitting characteristics due to localized increased burning rate could be correlated with the residue analysis and the instantaneous burning rate data. The acceleration-induced burning rate augmentation was strongly dependent on propellant distance burned, or burning time, and thus was transient in nature. The results from the extinction tests and the residue analyses indicate that the transient rate augmentation was highly dependent on local enhancement of the combustion zone heat feedback to the surface by the growth of molten residue particles on or just above the burning surface. The size, shape, and number density of molten residue particles, rather than the total residue weight, determined the acceleration-induced burning rate augmentation.
Book Synopsis Nonsteady Burning and Combustion Stability of Solid Propellants by : Martin Summerfield
Download or read book Nonsteady Burning and Combustion Stability of Solid Propellants written by Martin Summerfield and published by AIAA. This book was released on 1992 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Burning Rates of Composite Solid Propellants in Acceleration Fields by : Edward John Sturm
Download or read book A Study of the Burning Rates of Composite Solid Propellants in Acceleration Fields written by Edward John Sturm and published by . This book was released on 1968 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The average burning rates of a series of composite solid propellants were measured in acceleration fields up to 1000 G using a combustion bomb mounted on a centrifuge. The propellants were burned at constant pressures of 500, 1000, and 1500 psia. Specially prepared motors allowed the study of the effect of simultaneous erosive and acceleration induced burning rate increases. The burning rates of both the non-metallized and the majority of the metallized propellants were found to depend on acceleration. The effect of acceleration was found to depend on the basic burning rates of the propellants and the aluminum and oxidizer particle sizes and weight percentages. The burning rates of two very fast burning rate propellants were found to be essentially independent of acceleration. The erosion sensitivity of a propellant was found to decrease with increasing acceleration. A model was developed which successfully correlates the experimental results obtained for the non-metallized propellants. The experimental results for the metallized propellants could not be correlated by either of two models proposed by other investigators. This result indicates that a more complex model is required to explain the observed acceleration effects for metallized propellants. (Author).
Book Synopsis Experimental Investigation of the Effect of Aluminum Size and Loading on the Burning Rate of Solid Propellants Under Acceleration by : G. Burton Northam
Download or read book Experimental Investigation of the Effect of Aluminum Size and Loading on the Burning Rate of Solid Propellants Under Acceleration written by G. Burton Northam and published by . This book was released on 1969 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of the Effect of Acceleration on the Burning Rate of Composite Propellants by :
Download or read book An Investigation of the Effect of Acceleration on the Burning Rate of Composite Propellants written by and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The average burning rates of composite solid rocket propellant were measured in acceleration fields up to 2000 times the standard acceleration of gravity. The acceleration vector was perpendicular to and into the burning surface. Propellant strands were burned in a combustion bomb mounted on a centrifuge, and surge tanks were employed to ensure essentially constant pressure burning at 500, 1000, and 1500 psia. The burning rates of both aluminized and non-aluminized composite propellants were found to depend on acceleration. The effect of acceleration on burning rate was found to depend on the burning rate of the propellant without acceleration, aluminum mass loading, and aluminum mass median particle size. The relative burning rate increase was found to be greater for slow burning propellant than for faster burning propellants. The experimental results are compared to the analytical models proposed by Crowe for aluminized propellants and by Glick for non-aluminized propellants. The results indicate that these models do not adequately predict the observed relative burning rate increase with acceleration, and hence, that more complex modeling will be required to explain the observed acceleration effect. (Author).
Book Synopsis An Investigation of the Effect of Acceleration on the Burning Rate of Composite Propellants by : James Bruce Anderson
Download or read book An Investigation of the Effect of Acceleration on the Burning Rate of Composite Propellants written by James Bruce Anderson and published by . This book was released on 1966 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The average burning rates of composite solid rocket propellant were measured in acceleration fields up to 2000 times the standard acceleration of gravity. The acceleration vector was perpendicular to and into the burning surface. Propellant strands were burned in a combustion bomb mounted on a centrifuge, and surge tanks were employed to ensure essentially constant pressure burning at 500, 1000, and 1500 psia. The burning rates of both aluminized and non-aluminized composite propellants were found to depend on acceleration. The effect of acceleration on burning rate was found to depend on the burning rate of the propellant without acceleration, aluminum mass loading, and aluminum mass median particle size. The relative burning rate increase was found to be greater for slow burning propellant than for faster burning propellants. The experimental results are compared to the analytical models proposed by Crowe for aluminized propellants and by Glick for non-aluminized propellants. The results indicate that these models do not adequately predict the observed relative burning rate increase with acceleration, and hence, that more complex modeling will be required to explain the observed acceleration effect. (Author).
Book Synopsis Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States by :
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:
Book Synopsis Propellants and Explosives by : Naminosuke Kubota
Download or read book Propellants and Explosives written by Naminosuke Kubota and published by John Wiley & Sons. This book was released on 2015-04-23 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of the classic on the thermochemical aspects of the combustion of propellants and explosives is completely revised and updated and now includes a section on green propellants and offers an up-to-date view of the thermochemical aspects of combustion and corresponding applications. Clearly structured, the first half of the book presents an introduction to pyrodynamics, describing fundamental aspects of the combustion of energetic materials, while the second part highlights applications of energetic materials, such as propellants, explosives and pyrolants, with a focus on the phenomena occurring in rocket motors. Finally, an appendix gives a brief overview of the fundamentals of aerodynamics and heat transfer, which is a prerequisite for the study of pyrodynamics. A detailed reference for readers interested in rocketry or explosives technology.
Book Synopsis Master's Theses and Doctoral Dissertations in the Pure and Applied Sciences by :
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 1967 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis BURNING RATES OF SOLID COMPOSITE PROPELLANTS AT PRESSURES UP TO 20,000 PSIG. by :
Download or read book BURNING RATES OF SOLID COMPOSITE PROPELLANTS AT PRESSURES UP TO 20,000 PSIG. written by and published by . This book was released on 1966 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strand burning rates of ammonium perchlorate-containing composite propellants having plastisol-nitrocellulose, carboxyl-terminated-polybutadiene, and NF binders have been measured to 20,000 psig. For the first two types and probably the NF type the major influences on burning-rate transition are those resulting from variations in binder type and in oxidizer concentration and particle size; the presence of aluminum or burning-rate promoters has little effect on the pressure-dependence of the burning rate at high pressure. The pressure exponents of plastisol-nitrocellulose formulations reach constant values of 1.0 to 1.3 at about 6000 psi, with little dependence on AP particle size. Carboxyl-terminated-polybutadiene formulations examined give indexes from 0.3 at 2000 psi to 2 up to 10,000 psi, with appreciable AP-particle-size dependence; above 10,000 psi the index decreases to 0.9 and appears to be insensitive to oxidizer size. A proposed model suggests an alteration in the volatilization processes which ensue from differences in pressure-dependence of the respective binder and oxidizer release rates.
Book Synopsis Erosive Burning of Composite Solid Propellants by :
Download or read book Erosive Burning of Composite Solid Propellants written by and published by . This book was released on 1979 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The erosive burning characteristics of a series of eight composite solid propellants with systematically varied composition and particle size parmeters have been measured over a wide range of pressures and crossflow velocities. Predictions of erosive burning made using a simplified version of a composite propellant erosive burning model based on columnar diffusion flame bending have been found to agree reasonably well with data, except under conditions where the propellant heterogeneity is unimportant. Theory and experiment both indicate an increase in erosion sensitivity with increased pressure over the range of conditions studied. It appears that the dominant factor influencing the sensitivity of composite propellant burning rate to crossflow is the base (no crossflow) burning rate versus pressure behavior of the propellant (lower base burning rate leading to increased crossflow sensitivity), with other factors having at most a second order effect except through their influence on base burning rate. Emphasizing this point, three propellants with widely differing compositional and ingredient particle size parameters, but with essentially the same base burning rate versus pressure relationship, exhibited nearly identical erosive burning characteristics.
