摘要
针对回热式工质驱动分布式推进系统在布局、安装等方面存在的不足,将涡轮电驱动方式与其结合,提出了一种部分涡轮电分布式推进系统。基于部件法建立了设计点计算模型,开展了推进系统的能量流动机理分析,提出了能量传输中关键参数的设计方法。以此为基础,分析了设计参数对推进系统的影响,并对比了分析不同分布式推进系统的性能及设计参数。结果表明:部分涡轮电分布式推进系统耗油率对涡轮前温度的敏感性高于总增压比;相对于工质驱动分布式推进系统,部分涡轮电分布式推进系统存在1.7%的耗油率优势,且当功率占比选取合理时,能够改善原工质驱动分布式推进系统的不足。围绕推进系统耗油率,论证了基于工质驱动的部分涡轮电分布式推进系统在性能上的适用性。
Considering the shortcomings in the design and installation of the reheat gas-driven distributed propulsion system,a partial turbine-electric distributed propulsion system was proposed by combining with the turbine-electric driven method.A design point calculation model was established based on the component model.The energy flow mechanism of the propulsion system was analyzed,and the design method of key energy transfer parameters was proposed.Based on the research,the influence of design parameters on the propulsion system was analyzed,and the performance and design parameters of different distributed propulsion systems were compared and analyzed.The results showed that the fuel consumption of the partial turbo-electric distributed propulsion system was more sensitive to the turbine inlet temperature,and the total pressure ratio had less influence.Compared with the gas-driven distributed propulsion system,the partial turbo-electric distributed propulsion system had a fuel consumption advantage of 1.7%,and when the power ratio was reasonably selected,it could improve the gas-driven distributed propulsion system.Focusing on the fuel consumption of the propulsion system,the performance suitability of the partial turbo-electric distributed propulsion system based on the gas-driven propulsion system was demonstrated.
作者
王笑晨
贾琳渊
陈玉春
王玉茹
WANG Xiaochen;JIA Linyuan;CHEN Yuchun;WANG Yuru(School of Power and Energy,Northwestern Polytechnical University,Xi’an 710072,China)
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2024年第4期8-19,共12页
Journal of Aerospace Power
基金
国家重大专项基础研究项目(J2019-Ⅰ-0010-0010)。
关键词
分布式推进
工质驱动
部分涡轮电
设计点性能
参数设计方法
distributed propulsion
gas-driven
partial turbo-electric
design point performance
parameter design method
