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2020

A52M/SA502 Dissimilar Metal RPV Repair Weld: Evaluation of Different Techniques

Keinänen, H., Nevasmaa, P., Kuutti, J., Huotilainen, C., Virkkunen, I., Peltonen, M. & Siren, H., 2020, (Accepted/In press) Proceedings of the ASME 2020 Pressure Vessels & Piping Conference: PVP2020. American Society of Mechanical Engineers ASME

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

A52M/SA52 Dissimilar Metal RPV Repair Weld: Experimental Evaluation and Post-Weld Characterizations

Virkkunen, I., Peltonen, M., Siren, H., Nevasmaa, P., Huotilainen, C., Keinänen, H., Kuutti, J., Lambai, A., Mohanty, G. & Honkanen, M., 2020, (Accepted/In press) Proceedings of the ASME 2020 Pressure Vessels & Piping Conference : PVP2020. American Society of Mechanical Engineers ASME

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Round robin exercise of the candidate ATF cladding materials within the IAEA ACTOF project

Ševeček, M., Krejčí, J., Chalupová, A., Kabátová, J., Manoch, F., Kočí, J., Cvrček, L., Tang, C., Steinbrűck, M., Grosse, M., Penttilä, S., Autio, J. M., Lydman, J., Toivonen, A., Sartowska, B., Starosta, W., Waliś, L., Hózer, Z., Novotny, T., Perezné-Feró, E. & 5 others, Csordás, A. P., Horváth, M., Szabó, P., Giovedi, C. & Xu, P., 2020, Global/Top Fuel 2019. American Nuclear Society ANS, p. 283-290 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Validation and verification of the FINIX fuel behavior module

Peltonen, J., Loukusa, H. & Tulkki, V., 2020, Global/Top Fuel 2019. American Nuclear Society ANS, p. 1164-1173

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2019

Accelerating 5G Deployment in Smart Cities with Business Model Innovations

Hemilä, J. & Ryynänen, T., Jun 2019, Florence: XXX ISPIM Innovation Conference - Celebrating Innovation - 500 Years Since Da Vinci - 16-19 June 2019 - Florence, Italy. Bitran, I., Conn, S., Gernreich, C., Heber, M., Huizingh, K. R. E., Kokshagina, O., Torkkeli, M. & Tynnhammar, M. (eds.). Lappeenranta University of Technology, (LUT Scientific and Expertise Publications: Research Reports; No. 93).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Advanced cladding materials for accident tolerant fuels

Heikinheimo, J., Huotilainen, C., Pohja, R., Ivanchenko, M. & Loukusa, H., 31 Oct 2019, SYP2019 Proceedings. Finnish Nuclear Society, 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access

Calibration of Abaqus CDP model parameters

Calonius, K., Fedoroff, A., Kolari, K., Reijo, K. & Vilppo, J., Oct 2019, Proceedings of NSCM 32: The 32nd Nordic Seminar on Computational Mechanics . Niemi, A. H. & Koivurova, H. (eds.). Oulu: University of Oulu, p. 51-54 4 p. (University of Oulu: Mechanical Engineering. Report ; No. 9).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Open Access
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Coolant-cladding interaction models in FINIX fuel behaviour module

Peltonen, J. & Loukusa, H., 31 Oct 2019, SYP2019 Proceedings. Finnish Nuclear Society, 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access

Critical flow prediction by system codes - Recent analyses made within the FONESYS network

Lanfredini, M., Bestion, D., D'Auria, F., Aksan, N., Fillion, P., Gaillard, P., Heo, J., Karppinen, I., Kim, K. D., Kurki, J., Lifang, L., Shen, A., Vacher, J. L. & Wang, D., 1 Jan 2019, 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 20192019. American Nuclear Society ANS, p. 2274-2287 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Determination of T0 with Miniature C(T) Specimens for a High-Ni Weld Metal used in a Boiling Water Reactor Pressure Vessel

Sirkiä, L., Lydman, J., Ehrnstén, U. & Lindqvist, S., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
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15 Downloads (Pure)

Development and test of a hybrid probabilistic-deterministic framework based on the interface current method

Yi, H., Demazière, C., Vinai, P. & Leppänen, J., 2019, International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019. American Nuclear Society ANS, p. 2166-2177 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Development of an object-oriented SERPENT2-SUBCHANFLOW coupling and verification with problem 6 of the VERA core physics benchmark

García, M., Ferraro, D., Valtavirta, V., Imke, U., Tuominen, R., Sanchez-Espinoza, V. & Mercatali, L., 2019, International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019. American Nuclear Society ANS, p. 1424-1433

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access

Effect of thermal aging on microstructure and hardness of industrial heats of Alloy 690

Huotilainen, C., Ehrnstén, U., Ahonen, M. & Hänninen, H., 2019, 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors. American Nuclear Society ANS, p. 156-164 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Energy-dependent fission yields in advanced reactors

Kunchev, T., Shwageraus, E. & Leppänen, J., 1 Jan 2019, International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019. American Nuclear Society ANS, p. 710-718 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Environmental fatigue management for long time operation: Finnish point of view

Solin, J., Seppänen, T., Lemettinen, P., Isometsä, J. & Pulkkinen, E., 2019, ASME 2019 Pressure Vessels and Piping Conference, PVP 2019: Codes and Standards. American Society of Mechanical Engineers ASME, Vol. 1. 5 p. PVP2019-94015

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Environmentally assisted fatigue data from the INCEFA-PlUS project

Bruchhausen, M., McLennan, A., Cicero, R., Huotilainen, C., Mottershead, K., Le Roux, J. C. & Vankeerberghen, M., 2019, ASME 2019 Pressure Vessels and Piping Conference, PVP 2019: Codes and Standards . American Society of Mechanical Engineers ASME, Vol. 1. 9 p. PVP2019-93085

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Fast Fracture Analyses for Boiling Water Reactor Pressure Vessel and Its Internals

Cronvall, O., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 13 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
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5 Downloads (Pure)

Fatigue of NPP components simulated by non-uniformly strained stainless steel specimens

Solin, J., Alhainen, J., Arilahti, E., Seppänen, T. & Mayinger, W., 2019, ASME 2019 Pressure Vessels and Piping Conference, PVP 2019: Codes and Standards. American Society of Mechanical Engineers ASME, Vol. 1. 10 p. PVP2019-93833

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Fatigue of stainless steel in NPP piping – challenges in design by analysis

Solin, J., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
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28 Downloads (Pure)

Filler impact analysis on aging of crosslinked polyethylene for nuclear applications through dielectric spectroscopy

Suraci, S., Fabiani, D., Joki, H. & Sipilä, K., 2019, 2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP). IEEE Institute of Electrical and Electronic Engineers, p. 166-169 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Flaw Detection in Ultrasonic Data Using Deep Learning

Virkkunen, I. & Koskinen, T., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
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277 Downloads (Pure)

Full-core uncertainty analysis of nuclear fuel behavior

Loukusa, H., 31 Oct 2019, SYP2019 Proceedings. Finnish Nuclear Society, 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access

Global variance reduction scheme with self-adaptive weight-window mesh in the Serpent 2 Monte Carlo Code

Leppänen, J. & Jokipii, M., 2019, International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019. American Nuclear Society ANS, p. 85-95 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Improvement of ultrasonic testing of dissimilar metal welds

Leskelä, E., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
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14 Downloads (Pure)

Innovating support services for smart 5G light pole ecosystem

Ryynänen, T. & Hemilä, J., Jun 2019, XXX ISPIM Innovation Conference - Celebrating Innovation - 500 Years Since Da Vinci . Bitran, I., Conn, S., Gernreich, C., Heber, M., Huizingh, K. R. E., Kokshagina, O., Torkkeli, M. & Tynnhammar, M. (eds.). Lappeenranta University of Technology, (LUT Scientific and Expertise Publications: Research Reports; No. 93).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

In-situ monitoring of the corrosion behavior and impurity enrichment of steam generator tube materials under PWR secondary side thermal hydraulic and heat transfer conditions

Huotilainen, C., Jäppinen, E., Ikäläinen, T., Peltonen, S., Saario, T. & Sipilä, K., 2019, 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors. American Nuclear Society ANS

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Jules Horowitz Reactor - the Future of European Materials Testing Reactors

Huotilainen, C., Tulkki, V., Moilanen, P., Kinnunen, P., Revuelta, A. & Bignan, G., 2019, SYP2019 Proceedings: Nuclear Science and Technology Symposium - SYP2019. Finnish Nuclear Society

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Kraken: An upcoming Finnish reactor analysis framework

Valtavirta, V., Hovi, V., Loukusa, H., Rintala, A., Sahlberg, V., Tuominen, R. & Leppänen, J., 2019, International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019. American Nuclear Society ANS, p. 786-795 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Main Findings, Remaining Uncertainties and Lessons Learned from the OECD/NEA BSAF Project

Pellegrini, M., Herranz, L. E., Sonnenkalb, M., Lind, T., Maruyama, Y., Gauntt, R., Bixler, N., Morreale, A. C., Dolganov, K., Sevon, T., Jacquemain, D., Song, J. H., Hoshi, H., Nishi, Y. & Mizokami, S., 2019, Proceedings of the 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-18. American Nuclear Society ANS, p. 1147-1162 16 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Master Curve Procedure Accounting for the Combined, Constraint, Ductile Tearing and Loading Rate Effects

Lindqvist, S. & Wallin, K., 2019, ASME 2019 Pressure Vessels & Piping Conference: Volume 6A: Materials and Fabrication. American Society of Mechanical Engineers ASME, 7 p. PVP2019-93844

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Methane Catalyst Regeneration with Hydrogen Addition

Heikkilä, S., Sirviö, K., Niemi, S., Roslund, P., Lehtoranta, K., Pettinen, R., Vesala, H., Koponen, P., Kallinen, K., Maunula, T., Korpi, H. & Kortelainen, J., 2019, Meeting the Future of Combustion Engines: 29th CIMAC World Congress. 367

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Non-destructive evaluation of material degradation of nuclear reactor pressure vessels

Rinta-aho, J., Lappalainen, P. & Leskelä, E., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
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Overview and Outcomes of the OECD/NEA Benchmark Study of the Accident at the Fukushima Daiichi NPS (BSAF) Phase 2—Results of Severe Accident Analyses for Unit 2

Sonnenkalb, M., Pellegrini, M., Herranz, L. E., Lind, T., Morreale, A. C., Kanda, J., Tamaki, H., Kim, S. I., Cousin, F., Fernandez-Moguel, L., Andrews, N. & Sevon, T., 2019, Proceedings of the 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-18. American Nuclear Society ANS, p. 1119-1132 14 p. 29244

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Overview and Outcomes of the OECD/NEA Benchmark Study of the Accident at the Fukushima Daiichi NPS (BSAF) Phase 2—Results of Severe Accident Analyses for Unit 3

Lind, T., Pellegrini, M., Herranz, L. E., Sonnenkalb, M., Nishi, Y., Tamaki, H., Cousin, F., Fernandez-Moguel, L., Andrews, N. & Sevon, T., 2019, Proceedings of the 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-18. American Nuclear Society ANS, p. 1133-1146 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Overview and Outcomes of the OECD/NEA Benchmark Study of the Accident at the Fukushima Daiichi NPS (BSAF) Phase II—Results of Severe Accident Analyses for Unit 1

Herranz, L. E., Pellegrini, M., Lind, T., Sonnenkalb, M., Godin-Jacqmin, L., López, C., Dolganov, K., Cousin, F., Tamaki, H., Kim, T. W., Hoshi, H., Andrews, N. & Sevon, T., 2019, Proceedings of the 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-18. American Nuclear Society ANS, p. 1107-1118 12 p. 29243

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Particle and Gaseous Emissions from Marine Engines Utilizing Various Fuels and Aftertreatment Systems

Lehtoranta, K., Aakko-Saksa, P., Murtonen, T., Vesala, H., Kuittinen, N., Rönkkö, T., Ntziachristos, L., Karjalainen, P., Timonen, H. & Teinilä, K., 2019, CIMAC Technical Paper Database. 13 p. 399

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsProfessional

Particular fatigue resistance of stabilized stainless steel: Endurance limit, strength and ductility of fatigued steel

Solin, J., Alhainen, J., Arilahti, E., Seppänen, T. & Mayinger, W., 2019, ASME 2019 Pressure Vessels and Piping Conference, PVP 2019: Codes and Standards. American Society of Mechanical Engineers ASME, Vol. 1. 7 p. PVP2019-93317

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Photonuclear reactions in serpent 2 Monte Carlo code

Kaltiaisenaho, T., 2019, International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019. American Nuclear Society ANS, p. 181-190

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Serpent and TRIPOLI-4® transient calculations comparisons for several reactivity insertion scenarios in a 3D PWR minicore benchmark

Ferraro, D., Faucher, M., Mancusi, D., Zoia, A., Valtavirta, V., Leppänen, J. & Sanchez-Espinoza, V. H., Aug 2019, International Conference on Mathematics Computational Methods and Reactor Physics (M&C 2019). American Nuclear Society ANS, p. 1734-1743 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Serpent validation using giacint facility experimental data from a control rod insertion transient

Talamo, A., Gohar, Y. A., Valtavirta, V., Leppänen, J., Sikorin, S., Mandzik, S., Polazau, S. & Hryharovich, T., Aug 2019, International Conference on Mathematics Computational Methods and Reactor Physics (M&C 2019). American Nuclear Society ANS, p. 2657-2663 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Strain-controlled low cycle fatigue of stainless steel in PWR water

Seppänen, T., Alhainen, J., Arilahti, E. & Solin, J., 2019, ASME 2019 Pressure Vessels and Piping Conference, PVP 2019: Codes and Standards. American Society of Mechanical Engineers ASME, Vol. 1. 11 p. PVP2019-93279

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2008

Experimental Evidence on Inward Momentum Pinch on JET and Comparison with Theory and Modelling

Tala, T., Ferreira, J., Mantica, A. & JET-EFDA collaborators, 2008, Proceedings of the 22nd IAEA Fusion Energy Conference. Vienna: International Atomic Energy Agency IAEA, 8 p. Paper EX/3-3

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access

Modelling and verification of creep strain and exhaustion in a welded steam mixer

Holmström, S., Laukkanen, A., Rantala, J., Kolari, K., Keinänen, H. & Lehtinen, O., 2008, Proceedings of the ASME 2008 Pressure Vessels & Piping Conference, PVP 2008. New York, NY: American Society of Mechanical Engineers ASME, Vol. 7. p. 505-510

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Ruthenium behaviour under air ingress conditions: Main achievements in the SARNET project

Giordano, P., Auvinen, A., Brillant, G., Colombani, J., Davidovich, N., Dickson, R., Haste, T., Kärkelä, T., Lamy, J. S., Mun, C., Ohai, D., Pontillon, Y., Steinbrück, M. & Vér, N., 2008, 3rd European Review Meeting on Severe Accident Research, ERMSAR 2008.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2007

Carbon migration during jet13C experiments

Strachan, J. D., Coad, P., Corrigan, G., Spence, J., Matthews, G. F., Airila, M., Likonen, J., Rubel, M., Pitts, R. A., Kirschner, A., Phillips, V. & Kallenbach, A., 2007, 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts. European Physical Society, Vol. 31. p. 295-298 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Environment-assisted cracking and hot cracking of Ni-base alloy dissimilar metal welds

Hänninen, H., Toivonen, A., Brederholm, A., Saukkonen, T., Ehrnstén, U. & Aaltonen, P., 2007, Proceedings: 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems, 2007. Vol. 2. p. 1161-1178

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

9 Citations (Scopus)

Experimental and Numerical Studies of Liquid Dispersal from a Soft Projectile Impacting a Wall

Silde, A., Hostikka, S., Kankkunen, A., Hyvärinen, J. & Hakola, I., 2007, Proceedings: 19th International Conference on Structural Mechanics in Reactor Technology 2007, SMiRT 19. Vol. 3. p. 1535-1542 (Transactions of SMiRT, Vol. 19).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Modelling of the oxide film growth and layer restructuring on stainless steels in LWRs

Betova, I., Bojinov, M., Kinnunen, P., Saario, T. & Lundgren, K., 2007, Materials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems". Detroit, Michigan, USA, 16 - 20 Sept. 2008. Vol. 2. p. 952-964

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Observations of channel deformation in mildly-deformed, low-dose 304L austenitic stainless steel

Karlsen, W., Dohi, K. & Onchi, T., 2007, Proceedings: 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems, 2007. Vol. 1. p. 411-422

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

4 Citations (Scopus)

On the simulation of two-phase flow pressurized thermal shock (PTS)

Lucas, D., Bestion, D., Bodèle, E., Scheuerer, M., D'Auria, F., Mazzini, D., Smith, B., Tiselj, I., Martin, A., Lakehal, D., Seynhave, J-M., Kyrki-Rajamäki, R., Ilvonen, M. & Macek, J., 2007, Proceedings: 12th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-12. Curran Associates Inc., p. 358-379

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
12 Citations (Scopus)