Ernst-Christian Koch,Volker Weiser, Evelin Roth, Sebastian Knapp, Joost van Lingen and Jacco Moorhoff Abstract: Binary pyrolants based on ytterbium and either polytetrafluoroethylene or hexachloroethane yield a broad stable combustion regime with intense luminous flames. Combustion temperatures have been determined spectroscopically for both pyrolant types. The temperature correlates with the burn rate of the pyrolant. The UV-Vis spectra …
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JPyro – Issue 31, 2012 – Contents
Papers: Metal–Fluorocarbon Pyrolants. XV: Combustion of two Ytterbium–Halocarbon Formulations Numerical Simulation and Validation of Pyrotechnic Smoke Emissions Recycling of Global Consumer Fireworks Decomposition Kinetics of Pyrotechnic Mixture from Sound-Producing Fire Crackers Ref: JPyro, Issue 31, 2012 (J31)
A proposal to quantify trace levels of hexachlorobenzene in fireworks
Tom Smith and Martin Guest Abstract: Hexachlorobenzene, a persistent organic pollutant, may be present in firework compositions from four sources. This paper makes a proposal to determine what “trace” quantities of hexachlorobenzene may be found in firework compositions, particularly those originating in the Far East where HCB usage was common and contamination still exists. Proposals …
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Tests of Paper as a Fuel in a Hybrid Rocket Engine
Lucas Beveridge Abstract: The goal of this investigation was to determine how common types of paper would perform compared to pure Cellulose as fuels in a hybrid rocket engine. Although most types of paper are largely Cellulose, it was unclear if the additional components of paper (such as Lignin and fillers) would significantly impact the …
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Flame Analysis Of Micro And Nano Flash Powder For Firework Applications
A. Azhagurajan, N. Selvakumar and Sriram Jeyakumar Abstract: Flame height and width of flash powder used in firework manufacturing were observed as a function of their particle size. Mass consumption and flame propagation velocity were also calculated. Particles of 250, 150 and 75 micron size as well as nano-sized particles were used in the study. …
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Effect of Particle Size and Composition of Oxidisers on Sound Level Analysis of Firecrackers
A. Jeya Rajendrana and T. L. Thanulingam Abstract: Two types of oxidizers, potassium nitrate (KNO3) and potassium perchlorate (KClO4), were used and the particle size of the oxidizers was varied by using a ball mill. The particle size was determined by a particle size analyser. Pyrotechnic mixtures of compositions using the two different oxidizers potassium …
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JPyro – Issue 30, 2011 – Contents
Papers: Effect of Particle Size and Composition of Oxidisers on Sound Level Analysis of Firecrackers Flame Analysis Of Micro And Nano Flash Powder For Firework Applications Tests of Paper as a Fuel in a Hybrid Rocket Engine A proposal to quantify trace levels of hexachlorobenzene in fireworks Book Review Firework Displays: Explosive Entertainment …
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Quality Control Testing Of Pyrotechnic Articles For The Beijing 2008 Olympic Games
Andrew Tang Abstract: Firework displays are commonly used to celebrate special events. They have been used in Olympic Games opening and closing ceremonies for years. During the 29th Olympic Games – Beijing 2008 Olympic Games Opening and Closing Ceremonies, fi rework displays were therefore used as part of the program. Due to the Chinese traditional …
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ShellCalc© V4.12
** NOTE – Version 5 is now available – click here A new version of the Shellcalc© program is now available. The original paper describing the program is available here. ** PLEASE NOTE ** We have occasional reports that downloading the file using IE 8 results in a file with a “.zip” extension rather than “.xlsm”. …
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UK Fireworks Surveillance for Compliance with ADR and the UN Default Classification of Fireworks
D. Chapman, S. Dennis, B. Joyce, A. C. Donalds and M. J. C. Sime Abstract: Fireworks compositions have been examined for a range of different fireworks. These compositions have been tested and measured to ascertain compliance (or otherwise) with the United Nations (UN) Default Fireworks Classification Table criteria for UN Hazard Division (HD) 1.4G classification. …
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