TAG 1.1 Hazards
FASAANI – Fire behaviour and safety of nuclear infrastructure, VTT, Aalto
Research reports:
Verma, N. 2025.Experimental test results of XLPE: Virgin and aged samples. VTT Research Report, VTT-R-00067-26. 45 p.
Helminen, K., Korhonen, T., Kankaanpää, J. 2024. TGA and DSC test results of XLPE virgin and fast-aged samples. VTT Research Report, VTT-R-00703-24. 28 p.
Verma N. 2023. Nuclear power plant ventilation system modelling with fire induced pressure data.VTT Research Report, VTT-R-00784-23. 20 p.
Conference papers and journal articles:
Verma N., Korhonen T., Hakkarainen T., 2025, Reduced scope modelling of nuclear power plants’ ventilation system and its interaction with fire. Palotutkimuksen päivät. September, 3-4, 2025, Helsinki, Finland, pp. 44-51, https://www.spek.fi/wp-content/uploads/2025/09/PTP_2025.pdf
Gholami Haghighi Fard, M., Hostikka, S. 2024. Unraveling the surface heat flux heterogeneity in cone calorimetry of cylindrical charring material: Insights from experiments and 2D modeling. Fire Safety Journal, Volume 145, 104119, ISSN 0379-7112. https://doi.org/10.1016/j.firesaf.2024.104119
Verma, N., Hostikka, S., Vaari, J., Korhonen, T., Hakkarainen, T. 2024. Adapted FLASHCAT methodology to model horizontal cable tray fires using computational fluid dynamics. Nordic Fire & Safety Days. June 18-19, 2024, Lund, Sweden. https://ri.diva-portal.org/smash/get/diva2:1869356/FULLTEXT04.pdf
Verma, N., Hostikka, S., Vaari, J., Korhonen, T. 2023. Adapted FLASHCAT methodology to model horizontal cable tray fires using computational fluid dynamics. Fire Safety Journal, Volume 138, 103814, ISSN 0379-7112. https://doi.org/10.1016/j.firesaf.2023.103814
Theses:
Lukkarila, L. 2024. Thermochemical properties of five polymeric firestop materials. Master’s thesis, Aalto University. 90 p. https://aaltodoc.aalto.fi/items/aeb594f6-48dc-434d-ad22-516bd68a61a9
MAWECLI – Marine and Weather Events in the Changing Climate as Potential External Hazards to Nuclear Safety, FMI
Research reports:
Kanarik, H., Särkkä, J. 2026. D2.1.5 High waves with high sea levels – senistivity test in the Olkiluoto region. Finnish Meteorological Institute. 13 p.
Leijala, U., Jylhä, K., Särkkä, J. 2026. D2.4.1 Combinations of co-occurring external hazards relevant for nuclear power plant safety. Finnish Meteorological Institute. 17 p.
Räty, O., Laine M. 2024. D1.1.4 Review of spatial modelling of sea level extremes. Finnish Meteorological Institute. 29 p.
Leijala, U., Särkkä, J., Johansson, M. 2023. D1.1.1. A literature review on future global mean sea level rise and ice-sheet instability. Finnish Meteorological Institute. 14 p.
Conference papers and journal articles:
Laurila, T.K., Laapas, M., Olsson, T., Jylhä K. 2025 Wind speeds and gusts in Finland: a comparison of observations and ERA5 reanalysis. Boreal Env. Res. 30: 181–193. https://www.borenv.net/BER/archive/pdfs/ber30/ber30-181-193.pdf.
Ruosteenoja, K. and Jylhä, K. 2025. Extreme Cold Days and Spells in Northern Europe at 0.5°C–2.0°C Global Warming Levels. International Journal of Climatology, e8875. https://doi.org/10.1002/joc.8875
Rantanen, M., van den Broek, D., Cornér, J., Sinclair, V.A., Johansson M.M., Särkkä, J., Laurila, T.K., Jylhä, K. 2024. The Impact of Serial Cyclone Clustering on Extremely High Sea Levels in the Baltic Sea. Gephysical research letters, vol 51, issue 6. https://doi.org/10.1029/2023GL107203
Särkkä, J., Räihä, J., Rantanen, M., and Kämäräinen, M. 2024. Simulating sea level extremes from synthetic low-pressure systems. Nat. Hazards Earth Syst. Sci., 24, 1835–1842. https://doi.org/10.5194/nhess-24-1835-2024
Pellikka, H., Johansson, M. M., Nordman, M., and Ruosteenoja, K. 2023. Probabilistic projections and past trends of sea level rise in Finland. Nat. Hazards Earth Syst. Sci., 23, 1613– 1630, https://doi.org/10.5194/nhess-23-1613- 2023
Ruosteenoja, K., and Jylhä, K. 2023. Heatwave projections for Finland at different levels of global warming derived from CMIP6 simulations. Geophysica, 58, 47–75. https://www.geophysica.fi/article/id-58-1-047-ruosteenoja/
Räty, O., Laine, M., Leijala, U., Särkkä, J., and Johansson, M. 2023. Bayesian hierarchical modelling of sea-level extremes in the Finnish coastal region. Nat. Hazards Earth Syst. Sci., 23, 2403–2418. https://doi.org/10.5194/nhess-23-2403-2023
Theses:
Olsson, T. 2023. Sea-effect snow in Finland. Doctoral Thesis, Finnish Meteorological Institute Contributions. 190 p. https://doi.org/10.35614/isbn.9789523361829
PRALINE – Probabilistic Risk Assessment Labour, Improvements aNd Extensions, VTT
Conference papers and journal articles:
Karanta, I., Hotakainen, R. 2025. Human performance and reliability in a complex seismic accident scenario at a nuclear power plant. Proceedings of the 25th European Safety and Reliability & the 33rd Society for Risk Analysis Europe Conference. June 15-19, 2025. Stavanger, Norway. https://doi.org/10.3850/978-981-94-3281-3_ESREL-SRA-E2025-P4627-cd
Porthin, M., Shin, S.-M., Richard Quatrain, R., Tyrväinen, T., Sedlak, J., Brinkman, H., Müller, C., Picca, P., Jaros, M., Natarajan, V., Piljugin, E., Demgné, J. 2023. International case study comparing PSA modeling approaches for nuclear digital I&C – OECD/NEA task DIGMAP. Nuclear Engineering and Technology, 55. pp. 4367-4381. https://doi.org/10.1016/j.net.2023.08.012
Research reports:
Björkman, K. 2025. Performing computations for Digital I&C related CCFs in PRA. VTT Research Report, VTT-R-00422-25. 17 p.
Tyrväinen, T. 2025. Probabilistic risk assessment of a digital I&C architecture. VTT Research Report, VTT-R-00522-25. 42 p. + 7 p.
Tyrväinen, T. 2024. Preliminary probabilistic risk model for digital I&C architecture. VTT Research Report, VTT-R-00897-23. 27 p.
Björkman, K. 2023. I&C system architecture PRA – Literature review. VTT Research Report, VTT-R-00677-23. 17 p.
SERIOUS – Sensitivity and risk informed seismic hazard updates, VTT, RMCF, AFRY, HU
Conference papers and journal articles:
Jussila, V., Fülöp, L., Mäntyniemi, P., Puttonen, J. 2024. A novel method of estimating earthquake durations for the analysis of floor vibrations of nuclear power plants. Nuclear Engineering and Design, 429, 113606. https://doi.org/10.1016/j.nucengdes.2024.113606
SLO – Social License to Operate in emerging nuclear projects, OU
Research reports:
Aaltonen, K., Jääskä, E., Kujala, J. 2026. Approaches to social license to operate (SLO) in emerging nuclear projects. University of Oulu, Research Report. 72 p.