Drew Robb, freelance writer.
In the quest to improve efficiency and per formance of gas turbine engines, manufacturers
over the past few decades have steadily altered their designs to increase turbine inlet air
temperatures. Although this achieves the desired result, it produces the side ef fect of
over heating the blades - and that leads to low cycle fatigue failures. But with oil prices
fluctuating and the industr y accepting the reality of the need to reduce carbon emissions,
the tendency toward higher turbine inlet temperature continues unabated. This poses
considerable challenges for the analysis and design of turbine cooling schemes.
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