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Abstract
Studying the jet impingement cooling method on turbine vane often uses cylindral models for the edge tip zone and flat plate models for the midchord region. At the midchord region, there is an interaction between the jet flow and the crossflow and as such the local heat transfer coefficient increases markedly. The heat transfer coefficient can be determined by CFD simulation or experiment, but the current literatures show that the simulation uncertainty is still relatively high. Through analyzing the advantages and disadvantages of common experimental methods utilized in the current lieterature (e.g. stational temperature with time, Transient Liquid Crystal Technique and Temperature Oscillation Infra-Red Thermography - TOIRT), an experiment system was developed in this work to determine the heat transfer coefficient for a jet impingement plate of turbine nozzles guide vane by TOIRT method.