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Design review of fuel vent-relief valve  

Jang, JeSun (한국항공우주연구원 추진제어팀)
Kil, GyoungSub (한국항공우주연구원 추진제어팀)
Han, SangYeop (한국항공우주연구원 추진제어팀)
Park, Jong-Ho (충남대학교)
Publication Information
Aerospace Engineering and Technology / v.11, no.2, 2012 , pp. 109-116 More about this Journal
Abstract
A vent-relief valve performs as a safety-valve assembly for liquid propellant feeding system of space launch vehicle, which relives pressurant propellant tanks during the filling and the flight. At vent mode, valve is opened and closed by driving pneumatic pressure, and at relief mode, valve is automatically operated to set relief pressure. In this study, we have analyzed a basic layout of vent-relief valve which is designed using foreign LVs(Saturn) to satisfy requirements of Korean Space Launch Vehicle. The simulation model of vent-relief valve is designed by using the AMESim code to verify design parameters and evaluate pneumatic behaviors of valve. In this study, we performed dynamic characteristic simulations on design parameters. And we could predict opening/closing time and pressures, operating performances on design parameters. Using this results, we could suggest detail design and boundary conditions of design.
Keywords
Vent-relief Valve; AMESim; Dynamic Characteristics; Fuel Tank;
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  • Reference
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