The study of ignition characteristics of solid propellant using Arc Image Furnace

광학특성을 이용한 고체추진제 점화특성 연구

  • 유지창 (국방과학연구소 1본부 6부) ;
  • 김인철 (국방과학연구소 1본부 6부) ;
  • 정정용 (국방과학연구소 1본부 6부) ;
  • 고승원 (국방과학연구소 1본부 6부) ;
  • 이경주 (국방과학연구소 영상정보체계개발단)
  • Published : 2007.12.30

Abstract

The objective of the present work is to characterize design parameters of solid propellant ignitor for composite, double base, and nitramine propellants using arc image furnace. Arc image furnace and fiber optics surface reflectometer were used to measure ignition delay time and reflected optical energy of several compositions of composite, double base and nitramine base rocket propellant at different pressure levels each other. The order of ignitability was double base > composite> nitramine propellants at initial pressure of over 75 psia. The highest ignition energy was needed to ignite nitramine propellant, however, the ignition delay time decreased abruptly as the pressure increased up to the range of $75{\sim}400$ psia. The absorbtion of radiation energy could be increased by the addition of small amount of opacifiers as carbon black, ZrC, WC and burning catalyst.

본 연구에서는 로켓 모타의 추진제 점화 특성을 살펴보기 위하여 혼합형, 복기 및 니트라민 추진제를 대상으로 압력 변화에 따른 점화지연시간을 아크 이미지를 이용하여 측정하였다. 추진제 표면의 반사에너지를 측정하기 위하여 광섬유 표면반사계를 사용하였다. 추진제 점화성은 복기 추진제 > 혼합형 추진제 > 니트라민 추진제 순으로 나타났으며, 니트라민 추진제 점화에 가장 큰 점화 에너지가 필요했으나 압력이 $75{\sim}400$ psia 범위로 상승함에 따라 니트라민 추진제의 점화 지연 시간은 급격히 감소하였다. 카본 블랙, ZrC 및 WC 등의 소량의 오페시화이어를 첨가함으로써 추진제 표면의 흡수도를 증가시킬 수 있었다.

Keywords

References

  1. Committee on Standardization of Arc Image Propellant Ignition Measurement, "Arc Image Ignition Brochure", CPIA Pub. No. 238, 1973
  2. Kuo K.K. and Summerfield M., "Fundamentals of Solid Propellant Combustion", Vol. 90, 1984
  3. Duterque J. and Leugelle G., "Combustion Mechanisms of Nitramine Propellants with Additives," AIAA-88-3253, 1988
  4. Fleming R.W., and Derr R.L., "An Investigation of Nonreactive Surface coatings for use in Solid Propellant Arc Image Ignition Studias", AD-A019402, 1975
  5. Ohlemiller T.J., Caveny L.H., DeLuca L., and Summerfield M., "Dynamic Effects on Ignitability Limits of Solid Propellants Subjected to Radiotive Heating", 14th Symposium(International) on combustion Institute, Pittsburgh, PA, 1973, pp. 1297-1307