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http://dx.doi.org/10.6108/KSPE.2020.24.2.014

Aging of Solid Fuels Composed of Zr and ZrNi Part 2: Kinetics Extraction for Full Simulation  

Han, Byungheon (Mechanical and Aerospace Engineering, Seoul National University)
Park, Yoonsik (Mechanical and Aerospace Engineering, Seoul National University)
Gnanaprakash, K. (Mechanical and Aerospace Engineering, Seoul National University)
Yoo, Jaeyong (Hanwha Compound)
Yoh, Jai-ick (Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.24, no.2, 2020 , pp. 14-27 More about this Journal
Abstract
Differential scanning calorimetry and numerical analysis were performed to estimate the performance degradation and ignition characteristics of the pyrotechnic device due to aging. The reaction kinetics extracted from the calorimetry are implemented into the numerical simulation of the igniter and the pyrotechnic delay, subjected to natural, thermal, and hygrothermal aging conditions. Also, combustion experiments are conducted to confirm that aging due to moisture is a major cause of performance failure of the pyrotechnic device as shown from the present numerical simulations.
Keywords
Pyrotechnics; Solid Fuel; Aging Effect; Initial Burn Time Delay; Ignition Failure;
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