2011 · 18 citations · 3 references
EngineeringAutomotive EngineeringMechanical EngineeringCombustionInternal Combustion EnginesReaction EngineeringCombustion FundamentalsCombustion In EnginesCombustion ProcessesEngine EfficiencyEngine PerformanceLiquid Fuel CombustionBaffle StructuresCombustion Chamber DesignCombustion CharacteristicsHybrid Rocket CombustionHybrid Rocket EnginesHydrocarbon CombustionRocket CombustionRocket Engine Performance
A hybrid rocket has been considered to be a new hopeful rocket engine for safety, low cost, less pollution and so on. However, there are some technical problems. Those are low regression rate, low combustion efficiency and so on. Especially, low regression rete is key problem. We have been studying paraffin-based fuel which burn 3 to 5 times faster than that of HTPB. The reason why paraffin-based fuel has high regression rate is that this regression proceeds almost without vapourization. Therefore, liquid fuel is supplied to frame zone. This phenomenon makes combustion efficiency of paraffin-based hybrid rockets low level. We consider that it is effective to set up baffle plate inside combustion chamber and post combustion chamber behind baffle plate for atomization of the liquid fuel.
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