Pyrotechnics A P Hardt Reviews by B. E. Douda, S. D. Poehlein & S. K. Wilharm and B. Sturman On occasion, when a book to be reviewed has special significance, we have included more than one reviewer’s comments about it. In the present case we are including three reviews by authors with differing backgrounds, and …
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Category:JPyro – Articles
The main category – things that are published in the Journal
Test Burn of a Temporary Fireworks Stand
David Lynam ABSTRACT: In 1997, a burn test was performed on a temporary retail fireworks stand stocked with 900 pounds (400 kg) of a range of consumer fireworks. A maximum interior temperature of 1,400 °C was recorded inside the test stand and flashover occurred within approximately one minute of involvement of the fireworks. Ignited fireworks …
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Thermodynamic Modeling of High-Temperature Systems
Gleb V. Belov ABSTRACT: An outline of thermodynamic modeling of high-temperature systems is presented, including a historical introduction. There is no intention to provide a complete history of thermodynamic modeling, so neither vapor-liquid equilibria nor the thermodynamics of non-ideal solutions is discussed. This article reflects the author’s personal vision of the state of the art. …
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Evaluation of the Hazards Posed by High Energy Bangers Part 2. Damage to Hand Simulants
R. K. Wharton and A. E. Jeffcock ABSTRACT: This paper reports the development and construction of hand simulant models and their use to evaluate the extent of injury to persons holding, or being near to, high energy bangers when they are initiated. The test work suggests a risk of severe injury to the hand and …
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Particle Size Effect in Pyrotechnic Compositions Containing Potassium Chlorate
M. Fathollahi, S. G. Hosseini, S. M. Pourmortazavi, and F. Farahani ABSTRACT: In this research, the effect of potassium chlorate particle size on the heat of reaction and the ignition temperature was studied. Potassium chlorate of known particle size was prepared by crystallizing saturated solutions of potassium chlorate at various cooling rates and then isolating …
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Review of: Proximate Special Effects Familiarization & Safety – J. Larry Mattingly, David A. Opperman, MD, Francis “Pinky” Pinkerton
Review of: Proximate Special Effects Familiarization & Safety J. Larry Mattingly, David A. Opperman, MD, Francis “Pinky” Pinkerton Review by Stephen Miller M.I.Exp.E., After many years of drought, the rain is falling for those praying for a basic technical reference book on stage pyrotechnics. The stage and special effects industry as a whole has been …
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Studies of the Thermal Stability and Sensitiveness of Sulfur/Chlorate Mixtures — Part 5: Application of Self-Heating Theory to the Prediction of Ignition Temperatures
J. E. Fletcher ABSTRACT: The self-heating models of Frank-Kamenetskii and Thomas have been applied to predict self-ignition temperatures for sulfur-chlorate mixtures in spherical and cylindrical geometries of varying size. The models were validated by comparison to experimental cardboard tube test data previously reported. It was found that the Frank-Kamenetskii model, combined with kinetic data from …
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A Curious Observation during the Burning of Bulk Whistle Composition
L. Weinman, C. Dayton, and K. Lemon Abstract: As is common in pyrotechnic manufacturing operations, occasionally excess or sub-standard compositions need to be destroyed. This is usually, but not always, done by burning the composition. Recently, in the course of burning several pounds of excess potassium perchlorate-potassium benzoate whistle mix, a curious noise was produced. …
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Feasibility Study on the Use of Nanoscale Thermites for Lead-Free Electric Matches
Darren L. Naud, Michael A. Hiskey, Steven F. Son, James R. Busse, and Ken Kosanke ABSTRACT: Electric matches are used in the pyrotechnic industry to electrically initiate devices remotely and with precise timing. Unfortunately, most current commercial electric matches contain lead compounds, which when burned produce lead reaction products that may cause environmental pollution and contamination …
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Control Systems for the Storage of Explosives, Including Fireworks
M. J. Bagley ABSTRACT: This paper gives an account of the use of a questionnaire to obtain up-to-date information on control systems for the storage of fireworks and other types of explosives. The study showed that control systems for the storage of explosives based on quantity-distance schemes are used in many countries. In most of …
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