Lutz Kurth Abstract: The use of flames as part of shows is state of the art. Besides pyrotechnic flame projectors, the use of projectors that produce flames by burning various gases, liquids and dusts is significantly increasing. In this study infrared radiation in the wavelength range from 7.5 to 14 microns was measured for several …
Continue reading Flame Projectors for Show Effects – Investigations of Thermal Radiation for Assessing Safety Distances
Category:JPyro – Articles
The main category – things that are published in the Journal
Firework Salute Sound Characteristics and Perception: Background and Theory
K. L. Kosanke and B. J. Kosanke Abstract: The aesthetics of the sound produced by exploding firework salutes is not well addressed in the scientific literature. This paper presents a brief summary of what is known about impulse sounds as it may apply to exploding firework salutes. Also included are three hypotheses relating to the …
Continue reading Firework Salute Sound Characteristics and Perception: Background and Theory
The European Regulation Concerning the Registration, Evaluation, Authorization and Restriction of Chemicals
Pierre Thebault Abstract: The European regulation n°1907/2006 of 18 December 2006 – commonly referred to as “REACH” – states the mandatory registration and evaluation of chemical substances marketed, manufactured or imported in quantities of more than one ton per year on the European market. This obligation not only applies to chemical substances but also to …
Continue reading The European Regulation Concerning the Registration, Evaluation, Authorization and Restriction of Chemicals
Towards the New Pyrotechnics Directive 2013/29/EU – an Impact Assessment
Christian Lohrer and Jörg Dengel Abstract: With the coming into force of the new European Directive 2013/29/EU (Official Journal of the European Union L 178/27; 28.6.2013) pyrotechnic articles are regulated in view of making them available on the Union market. This Directive is a recast of the current Directive 2007/23/EC (Official Journal of the European …
Continue reading Towards the New Pyrotechnics Directive 2013/29/EU – an Impact Assessment
Analysis of Impact on Ambient Air Quality of Outdoor Firework Display During Chinese New Year 2013 in Hong Kong
Andrew Tang Abstract: Outdoor displays have been carried out for many years at Victoria Harbour in Hong Kong. These occur at least twice a year on China National Day (CND) and Chinese New Year (CNY) with a show time of about 23 minutes. The 2013 shows attracted many hundreds of thousands of people to watch …
Continue reading Analysis of Impact on Ambient Air Quality of Outdoor Firework Display During Chinese New Year 2013 in Hong Kong
Quantification of Visible Aerosols from Pyrotechnics: The Effect of Relative Humidity
Rene Yo Abe, Yoshiaki Akutsu, Akihiro Shimada and Takehiro Matsunaga Abstract: Light transmission and particle size distribution measurements of aerosol (smoke) emissions from pyrotechnic compositions have been performed in a combustion chamber at atmospheric pressure over a wide range of relative humidity. Maximum light extinction over time is proportional to weight of incinerated sample and …
Continue reading Quantification of Visible Aerosols from Pyrotechnics: The Effect of Relative Humidity
Comparison of national “safety distances” at professionally fired firework displays and distances derived from ShellCalc©
Tom Smith & Christian Lohrer Abstract: There is a wide variety of approaches across the world in determining appropriate “safety distances” for firework displays. Comparison of the different national approaches and distances for shells derived from ShellCalc© highlights the variety and derivation of the “safety distances” adopted and these distances are related to the various …
Continue reading Comparison of national “safety distances” at professionally fired firework displays and distances derived from ShellCalc©
Display Fireworks And Stage Pyrotechnics In Use – Which Distances Are ‘Safe’ In Germany And Other Parts Of the EU?
Christian Lohrer Abstract: Display fireworks and theatrical pyrotechnic articles are widely used in the EU by persons with specialist knowledge for local festivities, events, concerts and various music shows. According to the European Directive 2013/29/EU relating to the making available on the Union market of pyrotechnic articles, these articles are categorized as fireworks of category …
Continue reading Display Fireworks And Stage Pyrotechnics In Use – Which Distances Are ‘Safe’ In Germany And Other Parts Of the EU?
Green Pyrotechnic Formulations Based on Metal-Free and Nitrogen-Rich Tetrazolylborate Salts
Thomas M. Klapötke, Magdalena Rusan and Jörg Stierstorfer Abstract: The investigation of green-burning boron-based compounds as colorants in pyrotechnic formulations as an alternative for environmentally and health hazardous barium nitrate is reported here. Metal-free and nitrogen-rich dihydrobis(5-aminotetrazolyl)borate salts and dihydrobis(1,3,4-triazolyl)borate salts have been synthesized and characterized by NMR spectroscopy, elemental analysis, mass spectrometry and vibrational …
Continue reading Green Pyrotechnic Formulations Based on Metal-Free and Nitrogen-Rich Tetrazolylborate Salts
Quantification of Visible Aerosols from Pyrotechnics: Metal and Metal Compound Additives
Rene Yo Abe, Yoshiaki Akutsu, Akihiro Shimada and Takehiro Matsunaga Abstract: The effect of metal and metal compounds commonly used in pyrotechnics on visible aerosol development at high relative humidity has been investigated in combustion experiments using a combustion chamber. Ammonium perchlorate/ hydroxyl-terminated polybutadiene as oxidant/fuel system allowed aerosols generated from the additives to be …
Continue reading Quantification of Visible Aerosols from Pyrotechnics: Metal and Metal Compound Additives