Selaus tekijän mukaan kokoelmassa "Puustinen, Markku"Tieteelliset julkaisut

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    • Development and Validation of Pattern Recognition Algorithm and Suppression Pool Flow Modelling 

      Patel, Giteshkumar; Puustinen, Markku; Hyvärinen, Juhani; Hujala, Elina; Tanskanen, Vesa (American Nuclear Society, 25.08.2023)
      The comprehensive understanding of the dynamics of vapour bubbles and jets discharged from vent pipes and spargers into subcooled liquid has a significant role in assessing the capability of nuclear safety systems to perform ...

    • Effective momentum induced by steam condensation in the oscillatory bubble regime 

      Gallego-Marcos, Ignacio; Kudinov, Pavel; Villanueva, Walter; Puustinen, Markku; Räsänen, Antti; Tielinen, Kimmo; Kotro, Eetu (Elsevier, 01.06.2019)
      The spargers used in Boiling Water Reactors (BWR) discharge steam from the primary coolant system into a pool of water. Direct steam condensation in subcooled water creates sources of heat and momentum determined by the ...

    • LTO Modifications to Reduce the PTS Issue -- Results of TH Calculations in the Context of the APAL European Project 

      Puustinen, Markku; Patel, Giteshkumar; Kral, Pavel; Nikl, Tomas; Clifford, Ivor; Trewin, Richard; Hartung, Jürgen; Mateos, Canals Inés; Prošek, Andrej; Sokolowski, Lukasz; Mazgaj, Piotr; Vyshemirskyi, Maksym (American Nuclear Society, 25.08.2023)
      Numerous long-term operation (LTO) projects have been initiated across the European Union (EU) in the recent years to support extension of the lifetime and increase the safety level of the existing fleet of nuclear power ...

    • Pool stratification and mixing induced by steam injection through spargers: analysis of the PPOOLEX and PANDA experiments 

      Gallego-Marcos, Ignacio; Kudinov, Pavel; Villanueva, Walter; Kapulla, Ralf; Paranjape, Sidhart; Paladino, Domenico; Laine, Jani; Puustinen, Markku; Räsänen, Antti; Pyy, Lauri; Kotro, Eetu (Elsevier, 20.07.2018)
      Spargers are multi-hole injection pipes used in Boiling Water Reactors (BWR) and Advanced Pressurized (AP) reactors to condense steam in large water pools. A steam injection induces heat, momentum and mass sources that ...

    • Pool stratification and mixing induced by steam injection through spargers: CFD modelling of the PPOOLEX and PANDA experiments 

      Gallego-Marcos, Ignacio; Kudinov, Pavel; Villanueva, Walter; Kapulla, Ralf; Paranjape, Sidharth; Paladino, Domenico; Laine, Jani; Puustinen, Markku; Räsänen, Antti; Pyy, Lauri; Kotro, Eetu (Elsevier, 29.03.2019)
      Spargers are multi-hole injection pipes used in Boiling Water Reactors (BWR) and Generation III/III+ Pressurized Water Reactors (PWR) to condense steam in large water pools. During the steam injection, high pool surface ...

    • State of the Art for Thermal-Hydraulic Analysis of Pressurised Thermal Shock Scenarios 

      Clifford, Ivor; Kral, Pavel; Vyskocil, Ladislav; Pistora, Vladislav; Trewin, Richard; Filonova, Yuliia; Filonov, Vladislav; Sokolowski, Lukasz; Hartung, Jürgen; Szávai, Szabolcs; Prošek, Andrej; Roy, Jerome; Puustinen, Markku; Vyshemirskyi, Maksym; Bass, Richard; Williams, Paul; Takeda, Takeshi; Cueto-Felgueroso, Carlos (American Nuclea Society, 2023)
      Most of the nuclear power plants (NPPs) in the European Union (EU) are currently in the second half of their designed lifetime and numerous projects have been initiated to increase knowledge of their safety level, life ...

    • State-of-the-Art of WPS in RPV PTS Analysis 

      Zarazovskii, Maksym; Pištora, Vladislav; Lauerova, Dana; Obermeier, Florian; Mora Mendez, Diego Fernando; Dubyk, Yaroslav; Bolinder, Tobias; Cueto-Felgueroso Garcia, Carlos; Szávai, Szabolcs; Dudra, Judit; Costa Garrido, Oriol; Blain, Christophe; Puustinen, Markku; Katsuyama, Jinya; Bass B, Richard; Williams, Paul T.; Shugailo, Oleksii (ASME, 04.11.2022)
      The APAL (Advanced Pressurized Thermal Shock (PTS) Analysis for Long-Term Operation (LTO)) project was launched in October 2020 for four years with funding from the European Union’s HORIZON 2020 program. Within APAL, ...