• Title/Summary/Keyword: Fiber Optics Surface Reflectometer

Search Result 2, Processing Time 0.016 seconds

The study of ignition characteristics of solid propellant using Arc Image Furnace (광학특성을 이용한 고체추진제 점화특성 연구)

  • Yoo, Ji-Chang;Kim, In-Chul;Jung, Jung-Yong;Ko, Seung-Won;Lee, Kyung-Joo
    • Journal of the Korean Society of Propulsion Engineers
    • /
    • v.11 no.6
    • /
    • pp.1-8
    • /
    • 2007
  • 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.

The study of ignition characteristics of solid propellant using Arc Image Furnace (광학특성을 이용한 고체추진제 점화특성 연구)

  • Yoo, Ji-Chang;Kim, In-Chul;Jung, Jung-Yong;Lee, Kyung-Joo
    • Proceedings of the Korean Society of Propulsion Engineers Conference
    • /
    • 2007.04a
    • /
    • pp.225-228
    • /
    • 2007
  • The objective of this study is to characterize design parameters of rocket igniters for composite, double base and nitramine propellant. 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, as the pressure increased up to the range of $75{\sim}400$ psia as the ignition delay time decreased abruptly. The absorbtion of radiation energy could be increased by the addition of small amount of opacifiers as carbon black, ZrC, WC and burning catalyst.

  • PDF