某型航空发动机排气温度场测量
Measurement of Exhaust Temperature Field for A Certain Type of Aircraft Engine
程鲁 1闫卫青 1张帅 1白楚枫 1柳国印 1赵贺桃1
作者信息
- 1. 中国航发沈阳发动机研究所,辽宁沈阳 110015
- 折叠
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.
Abstract
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 werecomparedand analyzed to obtain the distribution of exhaust temperature field of the en-gine under idle,throttle,and maximum conditions.?Analysis shows that the unevenness of theidle stateis rela-tively high,and as the engine state increases,the uniformity of the temperature field becomes better.?The ex-haust 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.
关键词
排气温度/热电偶/温度场/不均匀度Key words
Exhaust temperature/Thermocouples/Temperature field/Unevenness引用本文复制引用
出版年
2024
NETL
NSTL
万方数据