Volume 29 Issue 11
Nov.  2014
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HUANG Ming-hai, ZANG Shu-sheng, GE Bing, WENG Shi-lie. Method of infrared thermography measurement for temperature field of turbine vane in hot wind tunnel[J]. Journal of Aerospace Power, 2014, 29(11): 2679-2683. doi: 10.13224/j.cnki.jasp.2014.11.019
Citation: HUANG Ming-hai, ZANG Shu-sheng, GE Bing, WENG Shi-lie. Method of infrared thermography measurement for temperature field of turbine vane in hot wind tunnel[J]. Journal of Aerospace Power, 2014, 29(11): 2679-2683. doi: 10.13224/j.cnki.jasp.2014.11.019

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

doi: 10.13224/j.cnki.jasp.2014.11.019
  • Received Date: 2013-09-03
  • Publish Date: 2014-11-28
  • 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.

     

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