New building DIPAK KIT Campus Nord

A new test and development platform is planned for the Campus Nord of the Karlsruhe Institute of Technology (KIT). The Direct Internal Recycling Development Platform Karlsruhe (DIPAK) will simulate and/or replicate processes across the entire internal fuel cycle of a fusion reactor. The client’s requirements included a sustainable and inspiring working environment that integrates the complex nature of fusion research into an architecturally appealing building. In close collaboration with ATP Zero, the specialist research company for innovative building technology, we developed a cost-effective, ecologically efficient, and aesthetically attractive building that is functionally tailored to its research purpose. This concept secured us the contract in the VgV tendering process.

Clear design for scientific exchange
The architectural concept envisions a compact, two-story structure, in which the different functional areas – such as laboratories, workshops, and technical rooms – are distinctly arranged. The core of the building is the approximately 12-meter-high, single-story CTF Hall (Central Test Facility), where research-related processes are tested. Generous glass partitions and visual connections across different areas ensure permanent visibility and direct spatial links to other functional zones. This layout enables short pathways and clear orientation, fostering collaboration and communication among employees. Administrative and safety-related requirements for each usage area are also optimally met.

Economical, efficient, and circular
The high technical, ecological, economical, and social quality of the building forms the basis for a future-proof and sustainable operation. The innovative building services and energy concept includes, among other things, a building envelope with high thermal efficiency, renewable energy sources (photovoltaic system), a mixed-mode ventilation system with CO₂ monitoring, and an energy management system. Heating will be supplied via the district heating network of the KIT campus. We also proposed converting surplus PV electricity into hydrogen, which can be made available for DIPAK’s research experiments. Rainwater harvesting, a green roof, the use of certified timber and building materials with a high recycled content, as well as easily dismantlable and reusable constructions, reflect a responsible, resource-conscious approach in line with circular economy principles.

Timber – aesthetics and function combined
The design features a timber facade that, on the one hand, gives the building a warm and visually appealing character, while on the other hand, it meets the specific requirements of the different functional areas. In the laboratory sections, the facade is largely closed, whereas floor-to-ceiling windows in other areas provide greater transparency and natural daylight.