Thermodynamic Analysis on the Aging of THPP, ZPP and BKNO3 Explosive Charges in PMDs

Autor:	Ki Heon Eom, Gil Hwan Ahn, Byung Tae Ryu, Yong Sun Won, Yong-Ha Kim, Kyung-Min Kim, Jong Gyu Paik, Sung Il Choi
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Aging Control and Optimization Materials science Explosive material Thermodynamic Analysis Titanium Hydride Potassium Perchlorate (THPP) Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Boron Potassium Nitrate (BKNO3) Oxygen lcsh:Technology 020401 chemical engineering Pyrotechnic Mechanical Devices (PMDs) 0204 chemical engineering Electrical and Electronic Engineering Zirconium Potassium Perchlorate (ZPP) Engineering (miscellaneous) Renewable Energy Sustainability and the Environment Flame Temperature lcsh:T 021001 nanoscience & nanotechnology Adiabatic flame temperature chemistry 0210 nano-technology Mechanical devices Energy (miscellaneous) Explosive power
Zdroj:	Energies, Vol 12, Iss 2, p 209 (2019) Energies Volume 12 Issue 2
ISSN:	1996-1073
Popis:	The aging of explosive charges in pyrotechnic mechanical devices (PMDs) significantly affects the reliability of their performance. Aging decreases the explosive power of explosive charges via pre-oxidation by external sources of oxygen. In this study, the flame temperature was calculated based on the amount of added oxygen source, and the effect of aging was quantified in terms of the performance of explosive charges. Three primary explosive charges (THPP, ZPP, and BKNO3) were selected, and the explosion was assumed to have occurred in a closed adiabatic system. The flame temperature decreased with increasing oxygen addition, suggesting that the aging decreased the pressure exerted by the PMDs. The explosive power decreased in the following order: ZPP > > THPP > BKNO3 (4100 > 3260 > 3050 K), and it was decreased by aging as follows: ZPP > BKNO3 > THPP (802 > 219 > 95 K per mole of added water). As a result, ZPP is appropriate for the generation of the huge thrust of PMDs despite its increased susceptibility to aging, while THPP is superior for reliable PMD performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea926203edf02fd3edc4114c0fe47a7d http://www.mdpi.com/1996-1073/12/2/209 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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