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Study on Key Factors Affecting Energy Output of Emulsion Explosives in Underwater Explosion
Author(s) -
Wang Liqiong,
Wang Nafeng,
Zhang Li
Publication year - 2012
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201000050
Subject(s) - explosive material , emulsion , decoupling (probability) , materials science , oxygen balance , shock wave , energy balance , aluminium , oxygen , chemistry , thermodynamics , composite material , physics , organic chemistry , engineering , control engineering
In this paper, emulsion explosives were investigated. Rules for the change of output energy of emulsion explosives with different oxygen balance, aluminum powder content, charge condition, decoupling media etc. were studied by means of an explosion water pool. The p – t curves and peak pressure values were obtained. The effects of these factors on shock wave energy, bubble energy and total energy were given. The results show that output energy of emulsion explosives without aluminum powder is lower than that of standard TNT explosives. The total energy of emulsion explosives with zero oxygen balance is only 86 % of that of TNT. In the experiment, output energy of the explosives tends to increase with the increase of aluminum powder content. With aluminum contents from 10 % to 15 %, the total energy is 1.05 and 1.14 time of that of TNT respectively. Energy efficiency is affected with change of decoupling coefficient and media.