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아산화질소를 산화제로 사용하는 실험용 액체로켓의 폭발사례 및 안전사용방안
최송이(Songyi Choi),박석영(Sukyoung Park),이동건(Donggun Lee),김도헌(Dohun Kim),구자예(Jaye Koo) 한국추진공학회 2015 한국추진공학회지 Vol.19 No.2
Nitrous oxide is known as green and safe propellant, and can be supplied by its own vapor pressure. So, many liquid propulsion research institutes and university laboratories use nitrous oxide as oxidizer of experimental liquid rocket engine. However, the unknown explosions occurred twice during hot fire experiments using subscale ethanol/nitrous oxide thruster. In this paper, we surmised that the explosions were caused by the decomposition of nitrous oxide in the injector body and the recondensation of nitrous oxide. Improvement and the safe handling methods are suggested.