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Disintegration Mechanism of Ammonium Nitrate Droplets by Melt Spray  

Ahn, Jin-Hwan (Sogang University)
Kim, Jae-Kyeong (Sogang University)
Kim, Jun-Hyung (ADD)
Koo, Kee-Kahb (Sogang University)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.12, no.2, 2009 , pp. 206-212 More about this Journal
Abstract
The pressurized spray system with nitrogen gas was designed to fabricate the spherical AN(ammonium nitrate) particles. When AN melt was sprayed from a nozzle with equivalent diameter of 0.28mm into an ambient dry air, the ligament breakup mechanism of the molten AN was found to be responsible for the droplet formation(or disintegration) of AN melt. In the experimental range of spray temperature with $170{\sim}200^{\circ}C$ and atomization pressure with $0.1{\sim}0.4MPa$, the spherical AN particles with mean diameter of $130{\sim}250{\mu}m$ were obtained.
Keywords
Ammonium Nitrate; Ligament Breakup Mechanism; Melt Spray;
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