Comprehensive Review on Leading Edge Turbine Blade Cooling Technologies

Developments in the gas turbine technology have caused widespread usage of Turbomachines for power generation. With increase demand and a drop availability fuel, turbines with higher efficiencies has become imperative. This is only possible an inlet temperature (TIT) gas. However, limit TIT governed by metallurgical boundary conditions set material used to manufacture blades. Hence, blade cooling helps drastically controlling allows temperature. The could be cooled from leading edge, entire surface or trailing edge. various methods edge its comparative study were reviewed summarized along their advantages disadvantages.