Model Analysis of a Direct Cryogenic LH2 Fuel Aircraft System for Airborne Applications

Modeling new aircraft concepts based on previous technical developments and fundamental theory involves high complexity and numerous assumptions. For the application of hydrogen tank fuel systems, accurate system behavior must be ensured to guarantee efficient and safe operation. Achieving this requires many iterative improvements and verification processes. This work is part of the LIQORNE (LIQuid hydrogen for airbORNE applications) project, which analyzes the model response to heat transfer with respect to insulation for pipe and tank components. Building on the previous development of cryogenic LH2 fuel aircraft system models within LIQORNE, the improvements affect the pressure and temperature development of these components, with results consistent with analytical verification. This represents an early stage design and analysis of the system, which is iteratively refined for each component. Consequently, with additional future experimental data, the results can be validated and compared to more detailed model simulations.