航天推进技术研究院主办
YAN Junfeng,ZHANG Mengzheng,LU Yuanyuan.Brief analysis on thermodynamic cycle of RBCC engine based on stratified combustion[J].Journal of Rocket Propulsion,2017,43(04):29-33.
基于分层燃烧的RBCC发动机热力循环浅析
- Title:
- Brief analysis on thermodynamic cycle of RBCC engine based on stratified combustion
- 分类号:
- V434-34
- 文献标志码:
- A
- 摘要:
- 针对分层燃烧循环RBCC发动机,建立了热力学理论模型,引入压缩效率、加热比和增压比,对RBCC发动机的热力循环过程进行分析,推导了发动机热效率计算公式,探讨了热效率随不同参数的变化及其与各参数之间的关系。分析表明,压缩效率、加热比及喷管压比越高,热效率越大;存在最优增压比,可使热效率达到最高值。
- Abstract:
- A theoretical thermodynamic cycle model was set up for RBCC engine with stratified combustion(SC) cycle. The thermodynamic cycle process of RBCC engine is analyzed by importing the parameters of compression efficiency, pressure ratio and heating ratio. A computational formula of the engine's thermal efficiency was derived. The variation of thermal efficiency with different parameters and relationship between the parameters are deduced. The analysis results show that the higher the compression efficiency, heating ratio and nozzle pressure ratio are, the higher the thermal efficiency becomes; the pressure ratio can make the thermal efficiency reach the maximum value.
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备注/Memo
收稿日期:2014-12-01;修回日期:2015-09-13 作者简介:严俊峰(1980—),男,硕士,高级工程师,研究领域为组合推进设计