Application of the Transient Heater Foil Technique for Heat Transfer Measurements
Application of the Transient Heater Foil Technique for Heat Transfer Measurements
复制标题
瞬态加热器箔技术在传热测量中的应用
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
P. Ott
中科院分区：
文献类型：
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作者：
M. Jonsson;P. Ott
在压克力壁面上粘贴电热箔片，用于测量涡轮叶片平台上的对流换热。使用加热器箔需要特定的过滤技术来获得搜索量-传热系数和箔的热量释放。本文总结和讨论了瞬态测量技术的局限性。此外，还提出了一种评估非冷却结构瞬态试验条件的方法。这种方法可以扩展到涉及先进薄膜冷却方案的瞬态测量。
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.