Wide range variable operation condition technology for a lox/kerosene staged combustion cycle engine
- Paper number
IAC-06-C4.3.09
- Author
Prof. Jianhua Chen, Academy of Propulsion Technology, China
- Coauthor
Prof. Jianhua Chen, Academy of Propulsion Technology, China
- Year
2006
- Abstract
For the purpose to control the launch vehicle’s overload and increase the payload, the engine’s operation condition should be variable.This means the engine’s thrust and mixture ratio must be regulated in real-time during the launch. In this paper, the thrust and mixture ratio regulating concept for a LOX/Kerosene staged combustion cycle engine is studied firstly. The engine uses a single reaction turbine to drive oxidant pump and fuel pump, so it’s difficulty to regulate the operation condition. The regulating process is studied through steady characteristic simulation, the results show that an efficient approach to regulate the engine’s thrust was to regulate the GG mixture ratio and temperature by changing the GG fuel flow rate. This can be realized by setting a flow regulator on the GG fuel supplying line. It also shows that an efficient approach to regulate the engine’s mixture ratio was changing the combustion chamber fuel flow rate by setting a throttle valve on main fuel supplying line of the combustion chamber. The thrust regulating process will not affect mixture ratio, and the mixture ratio regulating process has no influence on the thrust either. Secondly, in 50Finally, the demonstration hot test shows that the thrust and mixture ratio can be regulated in a range from 68
- Abstract document
- Manuscript document
IAC-06-C4.3.09.pdf (🔒 authorized access only).
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