摘要
航空发动机排气温度是整机试验过程重要的监测参数,探讨了热电偶测温原理,提出两种等环面分布热电偶温度传感器温度场测量方案,并对两种方案进行对比分析,获得了发动机在慢车、节流和最大状态下的排气温度场分布情况。分析可知:慢车状态不均匀度较大,随发动机状态升高,温度场均匀性越好。排气温度场在径向和周向均存在高温区,最高温度出现在径向高度2/3处。试验方案可为温度场测试试验开展提供参考。
The exhaust temperature of aircraft engines is an important monitoring parameter during the entire testing process.The principle of thermocouple temperature measurement was explored,and two temperature field measurement schemes using equal toroidal distribution thermocouple temperature sensors were proposed.The two schemes were compared and analyzed to obtain the distribution of exhaust temperature field of the engine under idle,throttle,and maximum conditions.?Analysis shows that the unevenness of the idle state is relatively high,and as the engine state increases,the uniformity of the temperature field becomes better.?The exhaust temperature field has high temperature zones in both radial and circumferential directions,with the highest temperature occurring at 2/3 of the radial height.?The experimental plan can provide reference for conducting temperature field testing experiments.
作者
程鲁
闫卫青
张帅
白楚枫
柳国印
赵贺桃
Cheng Lu;Yan Wei-qing;Zhang Shuai;Bai Chu-feng;Liu Guo-ying;Zhao He-tao(AECC Shenyang Engine Research Institute,Shenyang 110015,China)
出处
《内燃机与配件》
2024年第11期22-24,共3页
Internal Combustion Engine & Parts
关键词
排气温度
热电偶
温度场
不均匀度
Exhaust temperature
Thermocouples
Temperature field
Unevenness
作者简介
程鲁(1990-),男,山东菏泽,汉,工程师,硕士,主要从事航空发动机整机试验技术研究。
