Publication type
A1 Journal article (refereed), original research
Author(s)
Joonas Telkkä
Project Researcher
Energy
LUT School of Energy Systems
Lappeenranta
Research areas
Nuclear Energy and Engineering
Biography
Experimental thermal hydraulics is needed to increase knowledge on functioning of nuclear power plants (NPP) and thus to enhance the safety of NPPs. Test facilities at LUT nuclear safety research laboratory are used either to ensure the functioning of safety systems of NPPs or to gain data for the validation of the computer codes. These codes are used to analyze the safety features of light water reactors. In the doctoral research advanced measurement techniques are used to acquire more information on thermal hydraulics of NPPs. Among these are particle image velocimetry (PIV) and wire mesh sensors (WMS).
Particle image velocimetry is a flow visualization technique, which allows for capturing velocity information of flow fields. PIV is based on illuminating of small tracer particles added to the flow with a laser apparatus. The movement of these illuminated particles is recorded with a camera system and converted into velocity information with a data acquisition system.
Wire mesh sensors are used to gain information on multiphase flows. WMS is based on the difference of multiphase flow phases regarding an electrical property, i.e. conductivity or permittivity/capacitance. WMS can be used to determine void fraction distributions, bubble size distributions and velocity distributions of multiphase flows.
Particle image velocimetry is a flow visualization technique, which allows for capturing velocity information of flow fields. PIV is based on illuminating of small tracer particles added to the flow with a laser apparatus. The movement of these illuminated particles is recorded with a camera system and converted into velocity information with a data acquisition system.
Wire mesh sensors are used to gain information on multiphase flows. WMS is based on the difference of multiphase flow phases regarding an electrical property, i.e. conductivity or permittivity/capacitance. WMS can be used to determine void fraction distributions, bubble size distributions and velocity distributions of multiphase flows.
Nuclear energy, nuclear power plant engineering, (experimental) thermal hydraulics.
Publication type
A1 Journal article (refereed), original research
Author(s)
Dené Paul, Montout Michael, Garcia Eric, Telkkä Joonas, Riikonen Vesa, David Franck
Publication type
A1 Journal article (refereed), original research
Author(s)
Montout Michaël, Herer Christopher, Telkkä Joonas
Publication type
A4 Conference proceedings
Author(s)
Telkkä Joonas, Riikonen Vesa, Räsänen Antti, Kotro Eetu, Hyvärinen Juhani
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
Publication type
D2 Article in a professional research book (incl. editor’s introduction)
Author(s)
Telkkä Joonas, Hujala Elina, Kotro Eetu, Pyy Lauri, Räsänen Antti
Publication type
D2 Article in a professional research book (incl. editor’s introduction)
Author(s)
Riikonen Vesa, Kouhia Virpi, Telkkä Joonas, Pyy Lauri
Publication type
A4 Conference proceedings
Author(s)
Montout Michaël, Herer Christopher, Telkkä Joonas
Publication type
D1 Article in a trade journal
Author(s)
Telkkä Joonas, Suikkanen Heikki, Kouhia Virpi
Publication type
D2 Article in a professional research book (incl. editor’s introduction)
Author(s)
Riikonen Vesa, Kouhia Virpi, Telkkä Joonas, Pyy Lauri, Räsänen Antti, Kotro Eetu
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas, Hujala Elina, Pyy Lauri, Puustinen Markku
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas, Hujala Elina, Pyy Lauri
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas, Räsänen Antti, Kotro Eetu
Publication type
A4 Conference proceedings
Author(s)
Suikkanen H., Telkkä J., Kouhia V., Gabriel S., Albrecht G., Heiler W., Heineken F., Sanchez-Espinoza V. H., Li H., Grishchenko D., Bencik M., Vyskocil L., Dolecek V., Queral C., Fernandez-Cosials K., Villegas L. Rueda, Schneidesch C. R.
Publication type
A4 Conference proceedings
Author(s)
Hyvärinen Juhani, Telkkä Joonas, Tielinen Kimmo
Publication type
A4 Conference proceedings
Author(s)
Riikonen Vesa, Kouhia Virpi, Telkkä Joonas, Hyvärinen Juhani
Publication type
A4 Conference proceedings
Author(s)
Montout Michaël, Herer Christopher, Gomez-Garcia-Torano Ignacio, Telkkä Joonas, Polidori Massimiliano
Publication type
Other
Author(s)
Telkkä Joonas, Suikkanen Heikki, Räsänen Antti, Kotro Eetu
Publication type
Other
Author(s)
Telkkä Joonas, Räsänen Antti, Kotro Eetu
Publication type
B3 Unrefereed conference proceedings
Author(s)
Telkkä Joonas, Suikkanen Heikki, Kotro Eetu, Räsänen Antti
Publication type
Other
Author(s)
Pyy Lauri, Räsänen Antti, Telkkä Joonas
Publication type
Other
Author(s)
Tielinen K, Telkkä J, Kotro E, Kouhia V, Suikkanen H
Publication type
D2 Article in a professional research book (incl. editor’s introduction)
Author(s)
Telkkä Joonas, Hujala Elina, Pyy Lauri
Publication type
Other
Author(s)
Telkkä J, Räsänen A
Publication type
A4 Conference proceedings
Author(s)
Kouhia Virpi, Riikonen Vesa, Kauppinen Otso-Pekka, Telkkä Joonas, Hyvärinen Juhani
Publication type
A1 Journal article (refereed), original research
Author(s)
Kouhia Virpi, Riikonen Vesa, Kauppinen Otso-Pekka, Telkkä Joonas, Hyvärinen Juhani
Publication type
Other
Author(s)
Telkkä J, Kouhia V, Riikonen V, Karppinen J, Räsänen A, Kotro E
Publication type
D2 Article in a professional research book (incl. editor’s introduction)
Author(s)
Riikonen Vesa, Kouhia Virpi, Telkkä Joonas, Pyy Lauri
Publication type
Other
Author(s)
Telkkä J, Räsänen A
Publication type
Other
Author(s)
Telkkä J, Hujala E, Pyy L
Publication type
A1 Journal article (refereed), original research
Author(s)
Sanchez-Espinoza Victor Hugo, Gabriel Stephan, Suikkanen Heikki, Telkkä Joonas, Valtavirta Ville, Bencik Marek, Kliem Sören, Queral Cesar, Farda Anthime, Abeguile Florian, Smith Paul, Van Uffelen Paul, Ammirabile Luca, Seidl Marcus, Schneidesch Christophe, Grishchenko Dmitry, Lestani Hector
Publication type
Other
Author(s)
Telkkä Joonas, Pyy Lauri, Riikonen Vesa
Publication type
Other
Author(s)
Kotro Eetu, Pyy Lauri, Räsänen Antti, Telkkä Joonas
Publication type
Other
Author(s)
Telkkä Joonas
Publication type
Other
Author(s)
Telkkä Joonas, Hujala Elina, Pyy Lauri
Publication type
A4 Conference proceedings
Author(s)
Telkkä Joonas, Jämsén Siiri, Hyvärinen Juhani
Publication type
Other
Author(s)
Kouhia Virpi, Riikonen Vesa, Partanen Harri, Räsänen Antti, Kauppinen Otso-Pekka, Telkkä Joonas, Pyy Lauri, Tielinen Kimmo
Publication type
D2 Article in a professional research book (incl. editor’s introduction)
Author(s)
Riikonen Vesa, Kouhia Virpi, Kauppinen Otso-Pekka, Telkkä Joonas
Publication type
Other
Author(s)
Kouhia Virpi, Riikonen Vesa, Kauppinen Otso-Pekka, Telkkä Joonas, Hyvärinen Juhani
Publication type
Other
Author(s)
Telkkä Joonas, Riikonen Vesa
Publication type
Other
Author(s)
Riikonen Vesa, Purhonen Heikki, Kauppinen Otso-Pekka, Kouhia Virpi, Telkkä Joonas, Räsänen Antti, Kotro Eetu, Tielinen Kimmo
Publication type
Other
Author(s)
Telkkä Joonas
Publication type
Other
Author(s)
Telkkä Joonas, Kouhia Virpi, Partanen Harri, Räsänen Antti, Kauppinen Otso-Pekka, Kotro Eetu, Saure Ilkka
Publication type
Other
Author(s)
Kouhia Virpi, Riikonen Vesa, Telkkä Joonas, Partanen Harri, Räsänen Antti, Kauppinen Otso-Pekka, Kotro Eetu, Saure Ilkka, Tielinen Kimmo, Karppinen Juha
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas, Karppinen Juha
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas, Hujala Elina, Pyy Lauri
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas, Hujala Elina, Pyy Lauri
Publication type
A1 Journal article (refereed), original research
Author(s)
Telkkä Joonas, Ylönen Arto, Hyvärinen Juhani, Varju Tamas
Publication type
D2 Article in a professional research book (incl. editor’s introduction)
Author(s)
Riikonen Vesa, Kouhia Virpi, Kauppinen Otso-Pekka, Telkkä Joonas
Publication type
D4 Published development or research report or study
Author(s)
Telkkä Joonas, Hyvärinen Juhani, Kauppinen Otso-Pekka
Publication type
Other
Author(s)
Pyy Lauri, Telkkä Joonas, Hujala Elina
Publication type
Other
Author(s)
Tanskanen Vesa, Hujala Elina, Puustinen Markku, Pyy Lauri, Telkkä Joonas
Publication type
Other
Author(s)
Telkkä Joonas, Kauppinen Otso-Pekka, Kouhia Virpi, Partanen Harri
Publication type
Other
Author(s)
Telkkä Joonas, Hyvärinen Juhani
Publication type
Other
Author(s)
Telkkä Joonas, Hujala Elina, Pyy Lauri
Publication type
Other
Author(s)
Pyy Lauri, Telkkä Joonas
Publication type
D3 Professional conference proceedings
Author(s)
Riikonen Vesa, Kouhia Virpi, Kauppinen Otso-Pekka, Telkkä Joonas, Purhonen Heikki
General description of the PWR PACTEL test facility - third edition, Technical report, PAX 2/2014
|
2014
Publication type
D4 Published development or research report or study
Author(s)
Kouhia Virpi, Riikonen Vesa, Partanen Harri, Räsänen Antti, Kauppinen Otso-Pekka, Telkkä Joonas, Pyy Lauri
Publication type
Other
Author(s)
Ylönen Arto, Pyy Lauri, Telkkä Joonas
Publication type
D4 Published development or research report or study
Author(s)
Kouhia Virpi, Riikonen Vesa, Partanen Harri, Räsänen Antti, Kauppinen Otso-Pekka, Telkkä Joonas, Pyy Lauri