【作者】 杨国茹； 夏文庆； 张行；

【Author】 YANG Guoru;XIA Wenqing;ZHANG Hang;AVIC Xinxiang Aviation Industry(Group) CO,LTD;College of Aerospace Engineering,Nanjing University of Aeronautics & Astronautics;

【机构】 新乡航空工业(集团)有限公司； 南京航空航天大学航空宇航学院；

【摘要】 为了满足未来飞机对蒸发循环制冷系统(Vapor cycle system,VCS)长寿命、高可靠性和低能耗的要求,对准二级压缩蒸发循环制冷技术在飞机环控系统上的应用进行了研究。文中首先对准二级压缩蒸发循环制冷系统理论循环和准二级压缩过程进行了分析,然后通过对理论循环的性能计算和产品系统性能试验。证明在制冷量不变的前提下,采用准二级压缩循环代替单级压缩循环并辅以回热器后,系统制冷性能系数(Coefficient of performance,COP)值提高29%。同时,压缩机转速下降38%,排气温度下降29%,相应的压缩机的工作寿命和可靠性大幅提高。更多还原

【Abstract】 In order to meet the requirements of long life,high reliability and low energy consumption for the vapor cycle cooling system(VCS) on aircraft in the future,the application of the quasi-two stage vapor cycle cooling technology in the aircraft environmental control system is studied.The theoretical cycle and quasi-two stage compression process of the two stage compression refrigeration cycle are analyzed,and then the performance of the theoretical cycle and product performance are test.They are proved that the quasi-two stage compression cycle is used instead of single-stage compression cycle,under the vapor-liquid heat exchanger,the coefficient of performance(COP) value of the system is increased by 29%.At the same time,the compressor speed decreased by 38%,the discharge temperature decreased by 29%.Correspondingly,the working life and reliability of the compressor are greatly improved.更多还原