The growing share of renewable energies in the German and European grid is leading to increasing volatility in the power supply. To compensate so-called “Dunkelflauten” and to cover peak loads, gas turbines have established themselves due to their high power density, the load gradients that can be achieved and their quick-start capability. In the future, hydrogen additionally represents a carbon-free fuel alternative, which is already the subject of intensive research and development. However, due to its physical properties (including high flame speeds, wide ignition limits, shorter ignition delay), hydrogen combustion tends to generate high-frequency thermoacoustic instabilities which, when resonating with the natural frequencies of the combustion chamber, generate high pressure oscillations and can ultimately lead to material failure. For that reason, the prediction and specific optimization of the thermoacoustic behavior is essential in the early development phase of a combustion chamber.

Within the scope of the Master's thesis, the applicability of various numerically based prediction methods is to be investigated using the example of a generic hydrogen gas turbine combustion chamber.

For more details, please refer to the pdf documents below.