Janne Wallenius

Janne Wallenius is a Professor at the Department of Nuclear Science and Engineering at KTH Royal Institute of Technology. His research focuses on lead-cooled reactor design, nuclear waste transmutation, advanced nuclear fuels, and radiation damage physics. He leads the spin-off company Blykalla, developing small lead-cooled reactors for commercial heat and power production. Wallenius teaches several courses including Generation IV Reactors, Small Reactors, and The Nuclear Fuel Cycle, serving as examiner and course responsible. His work emphasizes passive safety systems and nuclear fuel innovation.

Key research interests include transmutation of actinides, lead-cooled reactor safety, and nitride fuel development. His recent publications address transient analysis, cladding fatigue, and reactor activation studies. Wallenius contributes to international projects like the European Lead-Cooled Training Reactor (ELECTRA) and China Initiative Accelerator Driven System (CI-ADS). His research bridges academic advancements with industrial applications through Blykalla's commercial reactor development.