Joint project: Redox3D

Development of optimized reactive structures and receiver-reactor geometries for solar thermochemical hydrogen production? Sub-project: direct 3D printing of ceramics

Hydrogen production

Solar thermochemical processes represent a promising possibility for producing large-scale, regenerative and cost-efficient hydrolysis under these conditions in the future. The technology of solar thermochemical cycles has made significant progress, especially in the last decade. Solar thermochemical water production has now been demonstrated in the field on a 50 kW scale with an efficiency of around 5%. By testing and investigating the systems, areas were identified which could lead to further, substantial efficiency increases through adjustments. Based on these findings, a new receiver reactor concept was developed at DLR in recent years which is characterized by high theoretical efficiency potential and promising technical feasibility. The technical challenges of the new concepts form the framework for the objectives of Redox3D. By successfully working on these objectives, the consortium is developing core know-how in the innovative areas of structure optimization and 3D printing of reactive, ceramic materials. With the help of numerical simulations of the new receiver reactor technology, both design and operating parameters are optimized. Central components of the system are tested experimentally. Redox3D thus leads to a significant advance in the technology of solar thermochemical hydrogen production.

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