Application of the Transient Heater Foil Technique for Heat Transfer Measurements

An electrically heated foil glued on top of an acrylic wall is employed to measure convective heat transfer on turbine vane platforms. The use of a heater foil requires specific filtering techniques to obtain the searched quantities – heat transfer coefficients and the heat release from the foil. In this paper, limitations of the transient measurement technique are summarized and discussed. Moreover, a method is presented to assess the conditioning of a transient test for un-cooled configurations. This method can be extended to transient measurements involving advanced film cooling schemes.


Presented at:
XIX Biannual Symposium on Measuring Techniques in Turbomachinery, VKI, Rhode-St-Genèse, Belgium, April 7-8, 2008
Year:
2008
ISSN:
0368-4466
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2008-04-07, last modified 2018-03-18

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