By: Paul W. Cooper and Stanley R. Kurowski Review by: L. Weinman This book is intended as an introduction to some of the technologies associated with explosives, propellants, and pyrotechnics. In contrast to some earlier similar books, the authors saw fit to include enough mathematics to allow the reader to accomplish some useful tasks after …
Continue reading Review: Cooper & Kurowski’s Introduction to the Technology of Explosives
Category:JPyro – Articles
The main category – things that are published in the Journal
A Severe Human ESD Model for Safety and High Reliability System Qualification Testing
Richard J. Fisher ABSTRACT: A severe human electrostatic discharge (ESD) equivalent source model has been developed for use in qualification testing of systems that have stringent safety or very high reliability requirements. The model produces the nowacknowledged worst-case waveform, and the values of the constituent components have been selected from measured human body electrical parameters …
Continue reading A Severe Human ESD Model for Safety and High Reliability System Qualification Testing
A Thermodynamic Properties Estimation Method for Isocyanates
Will Meyerriecks ABSTRACT: The accurate estimation of the adiabatic flame temperature is necessary when evaluating a composite propellant. This in turn requires additional formulation and properties data including the reactant percentages, chemical formulas, and formation enthalpies, where the latter is sometimes difficult to obtain. When experimental data is not available, one must use estimation methods. …
Continue reading A Thermodynamic Properties Estimation Method for Isocyanates
Hydrazinium Nitroformate: A High Performance Next Generation Oxidizer
Jeroen Louwers ABSTRACT: The use of chlorine-free high performance oxidizers in solid rocket propellants may reduce launch costs, while producing less polluting exhaust products. Hydrazinium nitroformate (HNF) is a candidate for such a next generation oxidizer. In this article the properties of HNF are addressed. Its combustion and decomposition characteristics, and its application in rocket …
Continue reading Hydrazinium Nitroformate: A High Performance Next Generation Oxidizer
Studies of the Thermal Stability and Sensitiveness of Sulfur/Chlorate Mixtures Part 1. Introduction
D. Chapman, R. K. Wharton and G. E. Williamson ABSTRACT: The presence of sulfur/chlorate mixtures in fireworks compositions has been proposed as the cause of numerous accidents in production and storage. A series of accidents after the introduction of the 1875 Explosives Act led to additional legislation to prohibit such mixtures in the UK. In …
Continue reading Studies of the Thermal Stability and Sensitiveness of Sulfur/Chlorate Mixtures Part 1. Introduction
Pyrotechnic Ignition and Propagation: A Review
K. L. and B. J. Kosanke ABSTRACT: The ideal pyrotechnic is completely stable in storage and handling, yet performs its mission completely with absolute reliability upon demand. Many accidents in pyrotechnics are the result of unintentional ignitions during handling and storage. There can also be serious safety ramifications of ignition and propagation failures of pyrotechnic …
Continue reading Pyrotechnic Ignition and Propagation: A Review
Methods for Calculation of Thrust Coefficients
Ed Brown ABSTRACT: When one wishes to predict or analyze rocket motor/engine performance accurately, a method for determining the nozzle thrust coefficient at each point in time is essential. If the vacuum thrust coefficient for the nozzle is known, the thrust coefficient for other conditions can easily be determined. This paper outlines several methods for …
Continue reading Methods for Calculation of Thrust Coefficients
Thermal Hazards from the Accidental Ignition of Pyrotechnic Compositions
R. K. Wharton and R. Merrifield ABSTRACT: In this paper we have analysed further some of our previously published data relating to thermal effects produced on the ignition of a range of pyrotechnic compositions, and have evaluated the hazards posed to those handling and working with such materials by reference to the distances for different …
Continue reading Thermal Hazards from the Accidental Ignition of Pyrotechnic Compositions
Possible Applications for Computer Codes in the Development of Pyrotechnic Compositions
Rutger Webb The following letter contains some comments on the possible applications for computer codes in the development of pyrotechnic compositions. It is hoped to stimulate more discussion on the practical applications of thermodynamic computer codes in the development of pyrotechnic compositions. (For example, for modeling colored compositions). Ref: JPyro, Issue 7, 1998, pp74-75 (J7_74)
Another Fog Study
Monona Rossol A two page summary of research done by Dr. Jacqueline M. Moline from the Mount Sinai- Irving J. Selikoff Center for Environmental and Occupational Medicine[1] investigated the health complaints of 25 pit musicians at the Beauty and the Beast. These musicians are exposed nightly to pyrotechnic emissions, glycol fog mists, and other air …
Continue reading Another Fog Study