热风洞中涡轮叶片温度场红外热像测量方法

黄名海; 臧树升; 葛冰; 翁史烈

doi:10.13224/j.cnki.jasp.2014.11.019

热风洞中涡轮叶片温度场红外热像测量方法

doi: 10.13224/j.cnki.jasp.2014.11.019

上海交通大学机械与动力工程学院, 上海 200240

详细信息

作者简介:
黄名海(1968-),男,广东揭阳人,博士生,主要从事涡轮叶片传热研究.

通讯作者:
臧树升(1956-),男,吉林长春人,研究员,博士,主要从事燃气轮机热力系统及燃气轮机热通道部件性能的研究.

中图分类号: V211.753
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出版历程
- 收稿日期: 2013-09-03
- 刊出日期: 2014-11-28

Method of infrared thermography measurement for temperature field of turbine vane in hot wind tunnel

School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

摘要

摘要: 提出了在热风洞中利用红外热像来测量涡轮叶片表面温度场的方法.针对热风洞特有的干扰因素,即石英玻璃窗口的透射比随着叶片表面温度变化以及燃气中的二氧化碳和水蒸气等组分参与热辐射所带来的干扰,在取得红外热像后按照燃气工况对温度场测量结果进行综合修正.考虑到叶片表面曲率的变化,通过几何上的变换重现了实际叶片表面上的温度场.结果表明:在热风洞的叶片温度场的红外热像测量中存在着110~140K的修正量.高温燃气环境中的红外热像测量结果必须按工况进行修正.
- 热风洞实验 /
- 涡轮叶片 /
- 红外热像 /
- 温度场测量 /
- 燃气热辐射
Abstract: A method of obtaining the temperature field of the surface of turbine vane in hot wind tunnel utilizing infrared thermography measurement was presented. After the acquirement of infrared thermograms, overall corrections were implemented pertaining to the specific disturbance of hot wind tunnel caused by variations in the transmission rate of quartz glass window with the vane surface temperature, as well as by thermal radiation of gas components such as carbon dioxide and water vapor. A geometrical transformation could help reproducing the temperature field of the vane surface, by taking into consideration the curvature of the vane surface. The results show that corrections as large as 110-140K exists for infrared thermography measurement of this testing in hot wind tunnel. Under hot gas circumstances, temperature correction based on gas conditions is indispensable.
- hot wind tunnel test /
- turbine vane /
- infrared thermography /
- temperature field measurement /
- thermal radiation of gas

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参考文献(18)

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