In today's industrial scenario, Gas Turbine is one of the most important components of auxiliary power plant system. In order maximize the overall performance and efficiency of all modern turbines, which theoretically operate according to Brayton cycle, they In this paper, we will be presenting the review of various efforts made by various authors towards the cooling of the turbine blade tip. The paper includes both, experimental methods developed as well as numerical efforts reported. Various experimental setups developed for turbine blade tip cooling includes the pioneer work of R. S. Bunker [1] to the recent efforts put by the Potdar et al. It has been noted that most of the authors had attempted this kind of problems experimentally only. They have found that the heat transfer can be improved by adding various types of protrusions

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