Conference paper

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.


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