A. Jeya Rajendran, T. Lekshmana Thanulingam, A. Meisudar and U. Manikandan Abstract: Dynamic, non-isothermal analysis of the pyrotechnic mixture of a sound-producing fire cracker, KNO3/Al/S/H3BO3,was carried out under N2 atmosphere by using a simultaneous thermogravimetric and differential thermal analyser. Intermediates and the residue formed in each stage of thermal decomposition of the pyrotechnic mixture were …
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Category:JPyro – Articles
The main category – things that are published in the Journal
Recycling of Global Consumer Fireworks
Andrew Tang, Andy Y. F. Tang and Paul Z. J. Peng Abstract: Consumer fireworks is one of the two major fireworks sectors, professional display fireworks and consumer fireworks, in the fireworks industry. It is estimated that consumer fireworks occupy about half of the market share in the global fireworks industry. In terms of packaging materials being …
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Numerical Simulation and Validation of Pyrotechnic Smoke Emissions
Abdelkarim Habib and Christian Lohrer Abstract: This paper aims at evaluating the practicability of an alternative strategy for the classical assessment of possible hazards aligned with the use of theatrical pyrotechnics especially at indoor venues, where the emission of solid reaction products (aerosols) is an important factor for permission for the use of pyrotechnics at …
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Metal–Fluorocarbon Pyrolants. XV: Combustion of two Ytterbium–Halocarbon Formulations
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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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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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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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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