Study on auto-ignited hybrid rocket based on n2o oxidizer using catalytic ignition system
- Paper number
IAC-17,C4,IP,20,x39355
- Author
Mr. Jincheol Kim, Chosun University, Korea, Republic of
- Coauthor
Prof. Taegyu Kim, Chosun University, Korea, Republic of
- Coauthor
Mr. Choi Woojoo, Chosun University, Korea, Republic of
- Coauthor
Dr. Minchan Kwon, Agency for Defence Development, Korea, Republic of
- Coauthor
Mr. Youngjoon Yoo, Agency for Defence Development, Korea, Republic of
- Coauthor
Prof. Jongkwang Lee, Korea, Republic of
- Year
2017
- Abstract
Auto-ignition of a hybrid rocket based on N_2$O oxidizer using catalytic ignition system was studied. The catalytic ignition mechanism is a technique that induces spontaneous ignition through the high-temperature gas caused by catalytic decomposition. The catalytic ignition system consists of two main part; one is a pre-heating assembly and the other is a catalytic ignitor. The advanced design of the heat-exchange between the N_2$O oxidizer and the catalyst was applied to improve the capability of the catalytic decomposition for the high supply rate of N_2$O oxidizer. The N_2$O oxidizer that is supplied at the temperature lower than -20^o$C was fully heated higher than 100^o$C through the pre-heating assembly. The N_2$O oxidizer was decomposed rapidly because the pre-heated N_2$O was injected to the catalytic ignitor. A single port solid propellant grain was installed at the end of the catalytic ignitor to evaluate the feasibility of the auto-ignition through the high-temperature gas generated by the catalytic ignitor system. Two types of the solid propellant, PE and PMMA, were tested, resulting in the successful hot-firing using the catalytic ignitor.
- Abstract document
- Manuscript document
IAC-17,C4,IP,20,x39355.pdf (🔒 authorized access only).
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