高速飞行器空气涡轮发电系统仿真与评估  

Simulation and Evaluation of Air Turbine Power Generation System for High-speed Aircraft

作　　者：张明治 毛晓东 庞丽萍[2] ZHANG Ming-zhi;MAO Xiao-dong;PANG Li-ping(School of Aero-engine,Shenyang Aerospace University,Shenyang 110136,China;School of Aeronautic Science and Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]沈阳航空航天大学航空发动机学院,沈阳110136 [2]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《科学技术与工程》2023年第18期8018-8024,共7页Science Technology and Engineering

基　　金：辽宁省“兴辽英才计划”基金(XLYC1802092)。

摘　　要：针对高速飞行器的高空发电问题,提出了一种以高温高压的冲压空气作为工质的预冷-两级膨胀的空气涡轮发电系统。采用理论分析计算与软件模拟仿真计算相结合的方法,建立了高速飞行器空气涡轮发电仿真模型,对空气涡轮发电系统进行性能分析,并采用起飞总质量法对发电系统进行评估分析。结果表明,高速飞行器在飞行高度30 km和飞行马赫数为6的飞行条件下,发电系统所需冲压空气0.0945 kg/s,在换热器处与JP-7燃油充分换热,使得涡轮前冲压空气温度降低至1196.36 K,保护涡轮不受高温损伤,同时发电系统可以稳定输出28.2 kW电量供用电系统及用电设备使用,此外,经换热后的燃油进入发动机,在很大程度上提高了系统的经济性。A pre-cooling-two-stage expansion air turbine power generation system using high-temperature and high-pressure ram air as the working mass was proposed for the high-altitude power generation of high-speed aircraft.A simulation model of air turbine power generation for high-speed aircraft was established by combining theoretical analysis and software simulation,and the performance of the air turbine power generation system was analyzed.The results show that the ram air required for the power generation system is 0.0945 kg/s at a flight altitude of 30 km and Mach 6,and the ram air is fully heat exchanged with JP-7 fuel at the heat exchanger to reduce the temperature of the ram air in front of the turbine to 1196.36 K,which protects the turbine from high-temperature damage.At the same time,the power generation system can produce 28.2 kW of electricity for the power system and the power equipment,in addition,the fuel after heat exchange enters the engine,which largely improves the economy of the system.

关 键 词：空气涡轮发电系统 高速飞行器 冲压空气 换热器 起飞总质量法 

分 类 号：V239[航空宇航科学与技术—航空宇航推进理论与工程]