Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Aging of Solid Fuels Composed of Zr and ZrNi Part 2: Kinetics Extraction for Full Simulation

Zr과 ZrNi로 구성된 고체연료의 노화 연구 Part 2: 화학반응식 추출 및 성능모사

  • 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)
  • Received : 2020.02.10
  • Accepted : 2020.03.15
  • Published : 2020.04.01
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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.

본 연구는 점화제와 지연제에 대한 시차 주사 열량 측정법을 통하여 반응 속도식 및 발열량을 추출하여 노화에 따른 반응 특성을 분석하기 위한 정밀 수치계산을 수행하였다. 연소 실험을 수행하여 수분이 관여된 노화에서 점화제와 지연제에서 명확한 연소 중단을 확인하였다. 이 결과를 수치계산과 비교하여 노화가 점화제와 지연제 전반에 성능 감소 및 오작동 요인으로 작용됨을 확인하였다.

Keywords

References

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