Computational Fluid Dynamics Analysis of the Core of the MOTEL Facility | 2024 Publication type A4 Conference proceedings Author(s) Patel Giteshkumar, Rahim Ananya Nazia, Telkkä Joonas, Hyvärinen Juhani Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
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
Development and Validation of Pattern Recognition Algorithm and Suppression Pool Flow Modeling | 2024 Publication type A1 Journal article (refereed), original research Author(s) Patel Giteshkumar, Hujala Elina, Tanskanen Vesa, Puustinen Markku, Hyvärinen Juhani Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Experiments on open loop passive cooling of nuclear reactor containment: Quasi-steady-state heat removal, dynamic loads, and feasibility of practical periodic testing | 2024 Publication type A1 Journal article (refereed), original research Author(s) Telkkä Joonas, Riikonen Vesa, Kouhia Virpi, Puustinen Markku, Pyy Lauri, Räsänen Antti, Kotro Eetu, Hyvärinen Juhani Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Global sensitivity analysis of nuclear district heating reactor primary heat exchanger and pressure vessel optimization | 2024 Publication type A1 Journal article (refereed), original research Author(s) Saari Jussi, Kozlova Mariia, Suikkanen Heikki, Sermyagina Ekaterina, Hyvärinen Juhani, Yeomans Julian Scott Energy - Transition to carbon-neutral world Energy Engineering and Power Technology Nuclear Energy and Engineering Statistics, Probability and Uncertainty Energy Energy (miscellaneous) Control and Optimization LUT Business School LUT School of Energy Systems
Helical coil steam generator stability experiments with the MOTEL test facility | 2024 Publication type A1 Journal article (refereed), original research Author(s) Riikonen Vesa, Telkkä Joonas, Kouhia Virpi, Puustinen Markku, Patel Giteshkumar, Pyy Lauri, Räsänen Antti, Kotro Eetu, Hyvärinen Juhani, Murad Afeef Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Nuclear engineering and design nuclear heat supply system for a small district heating reactor | 2024 Publication type A1 Journal article (refereed), original research Author(s) Teräsvirta Antti, Hyvärinen Juhani Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Numerical Modelling of Two-Phase Critical Flow in a Steam Generator Guillotine Tube Rupture Scenario | 2024 Publication type A4 Conference proceedings Author(s) Patel Giteshkumar, Pyy Lauri, Singh Sharandeet, Zaitsev Andrei, Hyvärinen Juhani Energy - Transition to carbon-neutral world LUT School of Energy Systems
The operator and the seven small modular reactors — An estimate of the number of reactors that a single reactor operator can safely operate | 2024 Publication type A1 Journal article (refereed), original research Author(s) Hartmann Jens, Hyvärinen Juhani, Rintala Ville Energy - Transition to carbon-neutral world Energy Engineering and Power Technology Nuclear Energy and Engineering Energy 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
Development and Validation of Pattern Recognition Algorithm and Suppression Pool Flow Modelling | 2023 Publication type A4 Conference proceedings Author(s) Patel Giteshkumar, Puustinen Markku, Hyvärinen Juhani, Hujala Elina, Tanskanen Vesa Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Efficiency of Passive Open Loop Heat Removal over Wide Range of Loop Flow Resistances -- PASI Loop Tests in the EU-PASTELS Project | 2023 Publication type A4 Conference proceedings Author(s) Telkkä Joonas, Riikonen Vesa, Räsänen Antti, Kotro Eetu, Hyvärinen Juhani Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Helical Coil Steam Generator Experiments with the MOTEL SMR Test Facility in the EU-McSAFER Project | 2023 Publication type A4 Conference proceedings Author(s) Telkkä Joonas, Suikkanen Heikki, Räsänen Antti, Kotro Eetu, Hyvärinen Juhani Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Modeling of horizontal steam injection in a water pool | 2023 Publication type A1 Journal article (refereed), original research Author(s) Patel Giteshkumar, Hujala Elina, Puustinen Markku, Hyvärinen Juhani Energy - Transition to carbon-neutral world LUT School of Energy Systems
Optimization of Natural Circulation District Heating Reactor Primary Heat Exchangers | 2023 Publication type A1 Journal article (refereed), original research Author(s) Saari Jussi, Suikkanen Heikki, Mendoza-Martinez Clara, Hyvärinen Juhani Energy - Transition to carbon-neutral world Energy Engineering and Power Technology Nuclear Energy and Engineering Energy Engineering 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
Modeling of Horizontal Steam Injection in a Water Pool | 2022 Publication type A4 Conference proceedings Author(s) Patel Giteshkumar, Hujala Elina, Puustinen Markku, Hyvärinen Juhani Energy - Transition to carbon-neutral world LUT School of Energy Systems
MOTEL-SMR integral PWR system test facility - design and first test results | 2022 Publication type A4 Conference proceedings Author(s) Hyvärinen Juhani, Telkkä Joonas, Tielinen Kimmo Energy - Transition to carbon-neutral world Nuclear Energy and Engineering LUT School of Energy Systems
Natural circulation experiment with the PASI facility – observations on phenomena with an open passive heat removal loop | 2022 Publication type A4 Conference proceedings Author(s) Riikonen Vesa, Kouhia Virpi, Telkkä Joonas, Hyvärinen Juhani Other Focus Area Energy - Transition to carbon-neutral world Nuclear Energy and Engineering 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
PASI – A test facility for research on passive heat removal | 2021 Publication type A1 Journal article (refereed), original research Author(s) Kouhia Virpi, Riikonen Vesa, Kauppinen Otso-Pekka, Telkkä Joonas, Hyvärinen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
PASI – A test facility for research on passive heat removal | 2021 Publication type A4 Conference proceedings Author(s) Kouhia Virpi, Riikonen Vesa, Kauppinen Otso-Pekka, Telkkä Joonas, Hyvärinen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Reactor core conceptual design for a scalable heating experimental reactor, LUTHER | 2021 Publication type A4 Conference proceedings Author(s) Truong Thinh, Suikkanen Heikki, Hyvärinen Juhani Nuclear Energy and Engineering 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
Defining void fraction with axial wire-mesh sensor in a swirling two-phase flow | 2019 Publication type A4 Conference proceedings Author(s) Telkkä Joonas, Jämsén Siiri, Hyvärinen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Image Analysis of Bubbling Mode Condensation Oscillations in Horizontal Sparger | 2019 Publication type A4 Conference proceedings Author(s) Hujala Elina, Tanskanen Vesa, Patel Giteshkumar, Hyvärinen Juhani
PASI - a test facility for research on passive heat removal | 2019 Publication type Other Author(s) Kouhia Virpi, Riikonen Vesa, Kauppinen Otso-Pekka, Telkkä Joonas, Hyvärinen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
System code analysis of accumulator nitrogen discharge during LOCA experiment at PWR PACTEL test facility | 2019 Publication type A1 Journal article (refereed), original research Author(s) Kauppinen Otso-Pekka, Kouhia Virpi, Riikonen Vesa, Hyvärinen Juhani
Corrigendum to Direct contact condensation modeling in pressure suppression pool system [Nuclear Engineering and Design 321 (2017) 328–342](S0029549316302977)(10.1016/j.nucengdes.2016.08.026)) | 2018 Publication type A1 Journal article (refereed), original research Author(s) Patel Giteshkumar, Tanskanen Vesa, Hujala Elina, Hyvärinen Juhani
Experimental observation of adverse and beneficial effects of nitrogen on reactor core cooling | 2018 Publication type A1 Journal article (refereed), original research Author(s) Riikonen Vesa, Kouhia Virpi, Kauppinen Otso-Pekka, Sjövall Heikki, Hyvärinen Juhani
Frequency analysis of chugging condensation in pressure suppression pool system with pattern recognition | 2018 Publication type A1 Journal article (refereed), original research Author(s) Hujala Elina, Tanskanen Vesa, Hyvärinen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Pattern recognition algorithm for analysis of chugging direct contact condensation | 2018 Publication type A1 Journal article (refereed), original research Author(s) Hujala Elina, Tanskanen Vesa, Hyvärinen Juhani
DEM in Analyses of Nuclear Pebble Bed Reactors | 2017 Publication type A4 Conference proceedings Author(s) Suikkanen Heikki, Rintala Ville, Hyvärinen Juhani Nuclear Energy and Engineering LUT School of Energy Systems
Direct contact condensation modeling in pressure suppression pool system | 2017 Publication type A1 Journal article (refereed), original research Author(s) Patel Giteshkumar, Tanskanen Vesa, Hujala Elina, Hyvärinen Juhani Nuclear Energy and Engineering Energy Modelling and Simulation LUT School of Energy Systems
Estimation of velocity fields from the axial wire-mesh sensor data | 2017 Publication type A1 Journal article (refereed), original research Author(s) Telkkä Joonas, Ylönen Arto, Hyvärinen Juhani, Varju Tamas Nuclear Energy and Engineering LUT School of Energy Systems
Frequency Analysis of Chugging Condensation in Pressure Suppression Pool System with Pattern Recognition | 2017 Publication type A4 Conference proceedings Author(s) Hujala Elina, Tanskanen Vesa, Hyvärinen Juhani
Modularity Based Requirements of MOTEL | 2017 Publication type D4 Published development or research report or study Author(s) Telkkä Joonas, Hyvärinen Juhani, Kauppinen Otso-Pekka
Numerical Modelling of Direct Contact Condensation of Steam in BWR Pressure Suppression Pool System | 2016 Publication type A4 Conference proceedings Author(s) Patel Giteshkumar, Tanskanen Vesa, Hyvärinen Juhani Other Focus Area LUT School of Energy Systems
Research based requirements of MOTEL | 2016 Publication type Other Author(s) Telkkä Joonas, Hyvärinen Juhani Nuclear Energy and Engineering Energy LUT School of Energy Systems
ANALYSIS OF REVERSE FLOW IN LOW-RISE INVERTED U-TUBE STEAM GENERATOR OF PWR PACTEL FACILITY | 2015 Publication type A4 Conference proceedings Author(s) Kauppinen Otso-Pekka, Riikonen Vesa, Kouhia Virpi, Hyvärinen Juhani Energy Engineering LUT School of Energy Systems
CFD modelling of chugging condensation regime of bwr suppression pool experiments | 2015 Publication type A4 Conference proceedings Author(s) Tanskanen Vesa, Patel Giteshkumar, Puustinen Markku, Hujala Elina, Kyrki-Rajamäki Riitta, Hyvärinen Juhani Nuclear Energy and Engineering Fluid Flow and Transfer Processes Energy LUT School of Energy Systems
Computer analyses on loop seal clearing experiment at PWR PACTEL | 2015 Publication type A1 Journal article (refereed), original research Author(s) Kauppinen Otso-Pekka, Kouhia Virpi, Riikonen Vesa, Hyvärinen Juhani, Sjövall Heikki Nuclear Energy and Engineering LUT School of Energy Systems
Numerical study of direct contact condensation of steam on stable interface in a BWR suppression pool test facility | 2015 Publication type A4 Conference proceedings Author(s) Patel Giteshkumar, Tanskanen Vesa, Rintala Ville, Hyvärinen Juhani Nuclear Energy and Engineering Fluid Flow and Transfer Processes Energy LUT School of Energy Systems
Sources and Effect of Non-Condensable Gases in Reactor Coolant System ofLWR | 2015 Publication type A4 Conference proceedings Author(s) Kral Pavel, Hyvärinen Juhani, Prosek Andrej, Guba Attila Nuclear Energy and Engineering Safety, Risk, Reliability and Quality Energy LUT School of Energy Systems
Study of Two-Phase Pipe Flow using the Axial Wire-Mesh Sensor | 2015 Publication type A4 Conference proceedings Author(s) Ylönen Arto, Hyvärinen Juhani
Experimental and Numerical Studies of Liquid Dispersal from a Soft Projectile Impacting a Wall | 2007 Publication type A4 Conference proceedings Author(s) Silde Ari, Hostikka Simo, Kankkunen Ari, Hyvärinen Juhani, Hakola Ilkka Nuclear Energy and Engineering Mechanics of Materials Civil and Structural Engineering LUT School of Energy Systems
Impact Test Facility | 2007 Publication type A4 Conference proceedings Author(s) Lastunen Auli, Hakola Ilkka, Järvinen Erkki, Calonius Kim, Hyvärinen Juhani Nuclear Energy and Engineering Safety, Risk, Reliability and Quality Civil and Structural Engineering LUT School of Energy Systems
Numerical Studies on Impact Loaded Reinforced Concrete Walls | 2007 Publication type A4 Conference proceedings Author(s) Saarenheimo Arja, Tuomala markku, Calonius Kim, Lastunen Auli, Hyvärinen Juhani, Myllymäki Jukka Nuclear Energy and Engineering Safety, Risk, Reliability and Quality Civil and Structural Engineering LUT School of Energy Systems
Dryout heat flux experiments with deep heterogeneous particle bed | 2006 Publication type A1 Journal article (refereed), original research Author(s) Lindholm Ilona, Holmström S, Miettinen J, Lestinen V, Hyvärinen Juhani, Pankakoski P, Sjövall H
Numerical and experimental studies on impact loaded concrete structures | 2006 Publication type A4 Conference proceedings Author(s) Saarenheimo Arja, Hakola Ilkka, Kärnä Tuomo, Hyvärinen Juhani, Tuomala Markku Nuclear Energy and Engineering Safety, Risk, Reliability and Quality Civil and Structural Engineering LUT School of Energy Systems