Professor, Lappeenranta-Lahti University of Technology LUT
Dr. Juhani Hyvärinen works as Professor of Modelling in Nuclear Engineering and Head of Energy Technology Department at LUT University, Lappeenranta. Born in 1963, he has a M.Sc. in Power Plant Engineering and D.Sc.(Tech.) In Nuclear Engineering, both from Lappeenranta University of Technology. He has been with LUT since 2013. He is internationally known for his early works on boron dilution in PWRs, horizontal steam generator modelling, and ECCS sump/strainer clogging issue resolution, and more recently on his work with passive safety systems and emerging problem resolution. He is also actively working on Small Modular Reactor (SMR), Maritime Reactor and Micro-Modular Reactor (MMR) safety and licensing, and overall safety (safety-security-safeguards
triplet).
From 2007 to 2013 Dr. Hyvärinen worked as the Chief Nuclear Officer in Fennovoima, a start-up nuclear new build company in Finland. He was responsible for power plant technology, fuel and waste management.
Before Fennovoima, Dr. Hyvärinen held management and expert positions at STUK for 18 years, focusing on safety assessment of legacy reactors and operating reactors, at home and abroad, and safety requirement development for nuclear new build projects.
Prof. Hyvärinen is the chairman of a Loviisa nuclear power plant safety committee. From the beginning of 2022 he has been a member of the LUT Board that oversees LUT University operative management.
Beyond academia, Prof. Hyvärinen is a co-founder and Senior Expert, Nuclear Safety, of Nordic Nuclear Energy AB, a company dedicated to reviving the Nordic Boiling Water Reactor delivery capability, and co-founder and Chief Nuclear Officer of SEATOM Oy, a company advancing maritime nuclear technologies for shipbuilders and shipping companies.
