June 16, 2025Open Access

Effect of Hydrogen Combustion on Film Cooling Characteristics in Gas Turbines

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Higher hydrogen blending ratios decrease density, causing coolant liftoff and reduced film effectiveness.
Film cooling efficiency declines due to increased specific heat capacity on the suction side.
Numerical simulations were used to analyze combustion impacts on cooling characteristics.
Findings highlight the necessity for improved cooling techniques in hydrogen gas turbines.

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Numerical analysis reveals hydrogen combustion reduces film cooling effectiveness in gas turbines, indicating a need for advanced cooling methods.

Jeong et al. (2025) studied this question.

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Numerical analysis reveals hydrogen combustion reduces film cooling effectiveness in gas turbines, indicating a need for advanced cooling methods.