As the world shifts towards sustainable energy solutions, hydrogen-powered propulsion systems are emerging as a promising alternative to traditional fuels. At the heart of this transition is the need for efficient and safe hydrogen storage solutions.
In Work Package 2 (WP2) of our project, we are developing innovative solutions to increase the gravimetric efficiency of hydrogen storage while minimising loss to the atmosphere, ultimately improving safety and reducing operating costs.
Our focus is on developing a multi-state storage system, utilising gaseous, liquid, and cryo-compressed hydrogen (CcH2), to achieve high storage densities and eliminate the need for a cryopump, improving the cost and reliability of the system. To reduce the weight of the pressurised storage, we are focusing on advanced composite materials with a leak-tolerant design.
We are excited to share several key achievements that highlight our progress in WP2. First, we are pleased to welcome M.Sc. Dante Raso to our team at Delft University of Technology. His expertise will be crucial in developing the design methodology and sizing of multi-state storages.
Another significant milestone has been the successful definition of boundary conditions for the multi-state storage system. These defined conditions will enable us to supply the powertrain with hydrogen at the necessary pressure throughout the entire flight. We also simulated the discharge process of hydrogen from a cryo-compressed tank during a typical flight mission.
Moreover, we developed a wall design for an all-composite CcH2 vessel. Our team conducted experimental analyses to investigate crack formation and gas leakage at room temperature, laying a solid foundation for creating leak-tolerant composites.
Finally, test rigs for cryogenic material characterisation have been conceptualized at the Institute of Lightweight Engineering and Polymer Technology (ILK). Technische Universität Dresden. This will allow us to assess how advanced materials perform under extreme cryogenic conditions, a critical step for optimising our hydrogen storage systems.
Looking ahead, we have outlined several key activities to further our progress. First, we are developing the initial approach for sizing multi-state storage systems, which will be implemented soon. Additionally, we will begin the design and construction of cryogenic test rigs, with completion anticipated by the end of 2025.
We look forward to sharing more updates as our project evolves.