Creating the foundations for safe nuclear power in Finland – Thermal hydraulics, safety analyses, safety justification methods research at the LUT University, 2000–2023 | 2024 Publication type A1 Journal article (refereed), original research Author(s) Hyvärinen Juhani, Riikonen Vesa, Telkkä Joonas, Hujala Elina, Kouhia Virpi, Puustinen Markku, Patel Giteshkumar, Pyy Lauri, Vihavainen Juhani, Suikkanen Heikki, Rintala Ville Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
The SARENA Programme: Master's degree studies in nuclear engineering combining different educational and cultural environments | 2024 Publication type A1 Journal article (refereed), original research Author(s) Kljenak Ivo, Abdelouas Abdesselam, Desmytter Manon, Elorza Francisco J., Gallego Eduardo, Hartnack Andreas, Hartnack Christoph, Hyvärinen Juhani, Vihavainen Juhani, Tiselj Iztok Energy - Transition to carbon-neutral world LUT School of Energy Systems
An overall safety concept for nuclear power plants | 2022 Publication type A1 Journal article (refereed), original research Author(s) Hyvärinen Juhani, Vihavainen Juhani, Ylönen Marja, Valkonen Janne Energy - Transition to carbon-neutral world LUT School of Energy Systems
PIEMOS-selvitys: Uusien ydinenergiateknologioiden mahdollisuudet ja kehitystarpeet | 2022 Publication type D1 Article in a trade journal Author(s) Hyvärinen Juhani, Vihavainen Juhani Energy - Transition to carbon-neutral world LUT School of Energy Systems
Uusien ydinenergiateknologioiden mahdollisuudet ja kehitystarpeet : Pienet modulaariset sarjavalmisteiset ydinreaktorit eli SMR:t | 2022 Publication type D4 Published development or research report or study Author(s) Hujala Elina, Hyvärinen Juhani, Rintamaa Rauno, Suikkanen Heikki, Vihavainen Juhani, Wähä Susanna Energy - Transition to carbon-neutral world LUT School of Energy Systems
The Sarena Project: Completing a Master's Degree in Nuclear Engineering Combining Different Educational and Cultural Environments | 2021 Publication type A4 Conference proceedings Author(s) Abdelouas A., Hartnack C., Gallego E., Elorza F.J., Hyvärinen J., Vihavainen J., Tiselj I., Kljenak I. Energy - Transition to carbon-neutral world LUT School of Energy Systems
PACTEL Small Break LOCA Experiment SBL-30 Calculation with TRACE Code | 2018 Publication type D4 Published development or research report or study Author(s) Vihavainen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Väitös: Ydinvoimalaitosten turvallisuusanalyysien epävarmuudet pienemmiksi | 2015 Publication type D1 Article in a trade journal Author(s) Vihavainen Juhani Nuclear Energy and Engineering Energy LUT School of Energy Systems
Passive Containment Cooling System (PCCS) Aerosol Experiments | 2014 Publication type D4 Published development or research report or study Author(s) Vihavainen Juhani, Laine Jani, Purhonen Heikki, Partanen Harri, Räsänen Antti, Puustinen Markku Nuclear Energy and Engineering Energy LUT School of Energy Systems
VVER-440 Thermal Hydraulics as a Computer Code Validation Challenge | 2014 Publication type G4 Doctoral dissertation (monograph) Author(s) Vihavainen, Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Higher Level Academic Nuclear Engineering Education in Finland – Need of Post Graduates? | 2013 Publication type A4 Conference proceedings Author(s) Salomaa R, Ala-Heikkilä J, Tuomisto F, Kyrki-Rajamäki Riitta, Vihavainen Juhani, Lehto J, Harjula R, Olin M, Vanttola T, Avolahti J, Aurela J, Koskinen K, Heikinheimo L, Hyvärinen J, Juurmaa T, Palmu M Nuclear Energy and Engineering LUT School of Energy Systems
Improvement of PACTEL facility simulation environment (PACSIM) | 2013 Publication type D3 Professional conference proceedings Author(s) Vihavainen Juhani Engineering LUT School of Energy Systems
Concluding validation knowledge of PACSIM project during 2008-2012, PACSIM 2/2012 | 2012 Publication type D4 Published development or research report or study Author(s) Vihavainen Juhani
PACTEL and PWR PACTEL Test Facilities for Versatile LWR Applications | 2012 Publication type A1 Journal article (refereed), original research Author(s) Kouhia Virpi, Purhonen Heikki, Riikonen Vesa, Puustinen Markku, Kyrki-Rajamäki Riitta, Vihavainen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Validation report: Calculation of PACTEL experiment ATWS-32 with the TRACE code, PACSIM 1/2012 | 2012 Publication type D4 Published development or research report or study Author(s) Vihavainen, Juhani
Validation report: Calculation of PACTEL experiments PSL-10 and PSL-11 with the TRACE code | 2012 Publication type D4 Published development or research report or study Author(s) Vihavainen, Juhani
Improvement of PACTEL Facility Simulation Environment, PACSIM, summary report | 2011 Publication type B2 Unrefereed book section Author(s) Vihavainen Juhani, Rantakaulio Antti Nuclear Energy and Engineering LUT School of Energy Systems
Modeling of the PACTEL Facility and Simulation of a Small Break LOCA Experiment With the TRACE V5.0 Code | 2011 Publication type A4 Conference proceedings Author(s) Vihavainen Juhani, Riikonen Vesa, Puustinen Markku, Kyrki-Rajamäki Riitta Nuclear Energy and Engineering LUT School of Energy Systems
Study of flow reversing in vertical heat exchange tubes, PAX 4/2011 | 2011 Publication type D4 Published development or research report or study Author(s) Riikonen Vesa, Kouhia Virpi, Vihavainen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Validation report: Calculation of PACTEL experiments SBL-31, SBL-33 and IMPAM VVER T2.3 (IMP06) with the TRACE code | 2011 Publication type D4 Published development or research report or study Author(s) Vihavainen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Validation report: Simulations of the LOF-20, SBL-50 and SIR-31 PWR PACTEL experiments with the TRACE code | 2011 Publication type D4 Published development or research report or study Author(s) Rantakaulio Antti, Vihavainen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
International Agreement Report: An Assessment of TRACE V4.160 Code Against PACTEL LOF-10 Experiment | 2010 Publication type D4 Published development or research report or study Author(s) Vihavainen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
TRACE code modeling of the horizontal steam generator of the PACTEL facility and calculation of a loss-of-feedwater experiment | 2010 Publication type A1 Journal article (refereed), original research Author(s) Vihavainen Juhani, Riikonen Vesa, Kyrki-Rajamäki Riitta Nuclear Energy and Engineering LUT School of Energy Systems
Improvement of PACTEL facility simulation environment | 2009 Publication type D4 Published development or research report or study Author(s) Vihavainen Juhani, Rantakaulio Antti Nuclear Energy and Engineering LUT School of Energy Systems
Validation report 1.1: TRACE-model for the PACTEL VVER facility | 2009 Publication type Other Author(s) Vihavainen Juhani
Validation report 1.2a: Calculation of PACTEL pressure loss experiments with the TRACE code | 2009 Publication type Other Author(s) Vihavainen Juhani
Validation report 1.2b: Calculation of PACTEL heat losses with TRACE code | 2009 Publication type Other Author(s) Vihavainen Juhani
European Commission 6th Euratom framework programme 2005-2008, Integrated project (ip): NURESIM, Nuclear Reactor Simulations, Sub-project 2: Thermal hydraulics, Deliverable D2.1.2: Review of the existing data basis for the validation of models for PTS | 2006 Publication type Other Author(s) Vihavainen Juhani, Puustinen Markku
PACTEL integral test facility - Description of versatile applications | 2006 Publication type A1 Journal article (refereed), original research Author(s) Purhonen Heikki, Puustinen Markku, Riikonen Vesa, Kyrki-Rajamäki Riitta, Vihavainen Juhani
PACTEL – A VERSATILE FACILITY FOR RESEARCH OF THERMAL HYDRAULICS | 2005 Publication type A4 Conference proceedings Author(s) Purhonen Heikki, Puustinen Markku, Riikonen Vesa, Kyrki-Rajamäki Riitta, Vihavainen Juhani
Review of the existing data basis for the validation of models for PTS. European Commission 6th Euratom framework programme 2005-2008, Integrated project (ip): NURESIM, Nuclear Reactor Simulations, Sub-project 2: Thermal hydraulics, Deliverable D2.1.2. Te | 2005 Publication type Other Author(s) Vihavainen Juhani, Puustinen Markku
Steam Blowdown Experiments with the Condensation Pool Test Rig | 2005 Publication type A4 Conference proceedings Author(s) Purhonen Heikki, Puustinen Markku, Riikonen Vesa, Kyrki-Rajamäki Riitta, Vihavainen Juhani, Räsänen Antti
Overview of the CATHARE use at the Lappeenranta University of Technology | 2004 Publication type Other Author(s) Vihavainen Juhani, SARRETTE Christine
Ydinjätehuollon vastuumäärälaskelmien evaluointi / ydinvoimalaitosten käytöstäpoisto | 2003 Publication type Other Author(s) Kyrki-Rajamäki Riitta, Vihavainen Juhani
Analyses of PACTEL passive safety injection experiments with APROS, CATHARE and RELAP5 codes | 2000 Publication type A1 Journal article (refereed), original research Author(s) Tuunanen Jari, Vihavainen Juhani, D’Auria Francesco, Frogheri Monica, Galassi G M, Kimber George, Lillington John, Alien Elizabeth, Williams T G Energy Engineering LUT School of Energy Systems
Analyses of PACTEL passive safety injection experiments GDE-21 through GDE-25 | 1998 Publication type A1 Journal article (refereed), original research Author(s) Tuunanen Jari, Riikonen Vesa, Kouhia Jyrki, Vihavainen Juhani Engineering LUT School of Energy Systems
Ydinvoimalaitoksen painovoimaisen hätäjäähdytysjärjestelmän analysointi tietokoneohjelmilla | 1998 Publication type G3 Licentiate thesis Author(s) Vihavainen, Juhani Engineering LUT School of Energy Systems
RELAP5 Analysis of Gravity-Driven Core-Cooling Experiments with PACTEL | 1997 Publication type A1 Journal article (refereed), original research Author(s) Munther Reijo, Vihavainen Juhani, Kalli Heikki, Kouhia Jyrki, Riikonen Vesa Engineering LUT School of Energy Systems