Position:
Head (Chief research associate)
Room number:
318-AK
Phone number:
+37037401926
Email:
The person is no longer employed at the Institute
Publications
Scientific article
2020
Graževičius A. [LEI], Kaliatka A. [LEI], Ušpuras E. [LEI].
Numerical investigation of two-phase natural convection and temperature stratification phenomena in a rectangular enclosure with conjugate heat transfer
In: Nuclear Engineering and Technology. Daejeon: Elsevier, 2020, Vol. 52, Iss. 1, p. 27-36. ISSN 1738-5733.
2019
Kaliatka A. [LEI], Ušpuras E. [LEI].
Heat removal from RBMK reactor core using non-regular means
In: Nuclear Engineering and Design. Elsevier, 2019, Vol. 354, 110165, p. 1-13. ISSN 0029-5493.
2018
Valinčius M. [LEI], Kaliatka T. [LEI], Kaliatka A. [LEI], Ušpuras E. [LEI].
Modelling of severe accident and in-wessel melt retention possibilities in BWR type reactor
In: Science and Technology of nuclear Installations. London, England: Hindawi, 2018, Vol. 2018, p. 1-14. ISSN 1687-6075.
Babilas E. [LEI], Dokucajev P., Janulevičius D., Markelov A., Pabarčius R. [LEI], Rimkevičius S. [LEI], Ušpuras E. [LEI], Vaišnoras M. [LEI].
Innovative technologies for spent fuel safe management at Ignalina channel-type reactors
In: Nuclear engineering and technology. Daejeon, South Korea: Korean Nuclear Society, Published by Elsevier Korea LLC, 2018, Vol. 50, Iss. 3, p. 504-511. ISSN 1738-5733.
Van Dorsselaere J.P., Barrachin M., Millington D., Adorni M., Hrehor M., Mascari F., Schaffrath A., Tiselj I., Ušpuras E. [LEI], Yamamoto Y., Gumenyuk D., Fedotova N., Cronvall O., Liska P..
ETSON strategic orientations on research activities. ETSON research group activity
In: International Journal for Nuclear Power. Berlynas: INFORUM, 2018, Vol. 63, Iss. 1, p. 13-18. ISSN 1431-5254.
2017
Kaliatka T. [LEI], Kaliatka A. [LEI], Ušpuras E. [LEI], Vaišnoras M. [LEI], Mochizuki H., van Rooijen W. F. G..
Best estimate approach for the evaluation of critical heat flux phenomenon in the boiling water reactors
In: Kerntechnik. 2017, Vol. 82, No. 2, p. 148-160. ISSN 0932-3902.
Kaliatka A. [LEI], Ušpuras E. [LEI], Kaliatka T. [LEI].
Analysis of ingress of coolant accident to the vacuum vessel of the W7-X fusion experimental facility
In: Fusion Science and Technology. 2017, Vol. 72, Iss. 2, p. 176-187. ISSN 1536-1055.
Slavickas A. [LEI], Pabarčius R. [LEI], Tonkūnas A. [LEI], Ušpuras E. [LEI].
Uncertainty and Sensitivity Analysis of Void Reactivity Feedback for 3D BWR Assembly Model
In: Science and Technology of Nuclear Installations. 2017, Vol. 2017, p. 1-9. ISSN 1687-6075.
Kaliatka T. [LEI], Ušpuras E. [LEI], Kaliatka A. [LEI].
Integrated assessment of thermal hydraulic processes in W7-X fusion experimental facility
In: Nuclear Engineering and Design. 2017, Vol. 312, p. 66-73. ISSN 0029-5493.
2016
Ušpuras E. [LEI], Rimkevičius S. [LEI], Urbonavičius E. [LEI], Kaliatka A. [LEI], Dundulis G. [LEI], Alzbutas R. [LEI], Stankūnas G. [LEI], Vaišnoras M. [LEI], Vileiniškis V. [LEI], Povilaitis M. [LEI], Kaliatka T. [LEI], Janulionis R. [LEI], Karalevičius R. [LEI], Voronov R. [LEI], Iešmantas T. [LEI], Kačegavičius T. [LEI].
Branduolių sintezės tyrimai Lietuvos energetikos institute
In: Energetika. Vilnius: Lietuvos mokslų akademija, 2016, T. 62, Nr. 3, p. 102-123. ISSN 0235-7208.
Conference paper
2021
Autrusson B., Van Dordsselaere J. P., Adorni M., Rocchi F., Cizelj L., Fedotova N., Shevchenko S., Schaffrath A., Pecherytsia O., Ušpuras E. [LEI], Nitoi M., Yamamoto Y., Power S..
Overview of ETSON modelling and experimental capabilities for R&D on nuclear safety: ETSON Research Group
In: Challenges faced by technical and scientific support organizations (TSOs) in enhancing nuclear safety and security: ensuring effective and sustainable expertise, IAEA Series: Proceedings series. Proceedings of an International Conference Brussels, Belgium, 15–18 October 2018. Vienna: International Atomic Energy Agency (IAEA), 2021, p. 119-128. ISSN 0074–1884 ISBN 978-92-0-121021-0.
2018
Kaliatka A. [LEI], Kaliatka T. [LEI], Vileiniškis V. [LEI], Ušpuras E. [LEI].
Best Estimate Approach for the Simulation of Reactor Core Overheating and Quenching Experiments
In: Best Estimate Plus Uncertainty International Conference. Multi-Physics Multi-Scale Simulations with Uncertainty (BEPU 2018) May 13-18, 2018. Lucca, Italy: 2018, p. 1-12..
Kaliatka A. [LEI], Ušpuras E. [LEI].
Application of the BE Approach for the Analysis of Design and Beyond Design Basis Accidents
In: Best Estimate Plus Uncertainty International Conference. Multi-Physics Multi-Scale Simulations with Uncertainty (BEPU 2018) May 13-18, 2018 . Lucca, Italy: 2018, p. 1-12..
2017
Van Dorsselaere J.P., Barrachin M., Millington D., Adorni M., Hrehor M., Macari F., Schaffrath A., Tiselj I., Ušpuras E. [LEI], Yamamoto E., Gumenyuk D., Fedotova N., Cronvall O., Liska P..
Summary of ETSON strategic orientations on research activities. ETSON Research Group activity
In: Proceedings of the EUROSAFE Forum 2017 Paris, 6 and 7 November 2017. Prancūzija: IRSN, 2017, p. 121-132. ISBN 978-2-9545237-8-1.
Kaliatka T. [LEI], Ušpuras E. [LEI], Kaliatka A. [LEI].
Analysis of Station Blackout Accident in ABWR Reactor
In: 17th International Topical Meeting on Nuclear Reactor Thermalhydraulics” (NURETH-17) September 3-8, 2017 Kinija . Sianas: 2017, p. 1-1..
Kaliatka T. [LEI], Ušpuras E. [LEI], Kaliatka A. [LEI].
Application of BE approach for the different nuclear fission and fusion facilities
In: 17th International Topical Meeting on Nuclear Reactor Thermalhydraulics” (NURETH-17) September 3-8, 2017. Kinija. Sianas: 2017, p. 1-1..
Žutautaitė I. [LEI], Dundulis G. [LEI], Rimkevičius S. [LEI], Ušpuras E. [LEI], Eid M., Stakelytė G..
Estimation of rare events probabilities in natural gas transmission networks
In: 10th International conference on mathematical methods in reliability (MMR 2017). Grenoble, France: 2017, p. 1-9..
Kaliatka T. [LEI], Ušpuras E. [LEI], Allison Ch. M..
Modeling of quench 10 experiment on air ingress using relap/scdapsim mod 3.5
In: Proceedings of the 2017 25th International Conference on Nuclear Engineering ICONE25 July 2-6, 2017(ICONE25-66135), China.. Shanghai: ASME (The American Society of Mechanical Engineers), 2017, p. 1-7..
2016
Kaliatka A. [LEI], Kaliatka T. [LEI], Ušpuras E. [LEI], Mochizuki H..
Modelling of critical heat flux phenomenon in the boiling water reactors
In: Proceedings of the 11th International Conference of the Croatian Nuclear Society Zadar, Croatia, 5-8 June 2016. . Zagreb, Croatia: Croatian Nuclear Society, 2016, p. 1-10. ISBN 978-953-55224-8-5 (USB).
2015
Kaliatka A. [LEI], Vileiniškis V. [LEI], Ušpuras E. [LEI].
Analysis of heat removal accidents during the wet storage phase in Ignalina nuclear power plant
In: The 26th international symposium on transport phenomena . Leoben, Austria: 2015, p. 1-8..
Popular science article
2020
Babilas E. [LEI], Pabarčius R. [LEI], Vaišnoras M. [LEI], Ušpuras E. [LEI], Rimkevičius S. [LEI], Šeporaitis M. [LEI], Tonkūnas A. [LEI].
LEI activities in the EU projects directed to support the Regulatory Body of Iraq
In: Energetika. Vilnius: Lietuvos mokslų akademija, 2020, T. 66, Nr. 1, p. i-ii. EBSCO (Academic Search Complete), INSPEC, Index Copernicus, SCOPUS, VINITI, Ulrich's Web . ISSN 0235-7208, eISSN 1822-8836.
2019
Pabarčius R. [LEI], Babilas E. [LEI], Ušpuras E. [LEI].
LEI activities as ETSON Consortium member in EC project
In: Energetika (Kronika). 2019, Vol. 65, No. 4, p. 8-9. ISSN 0235-7208.
2018
Ušpuras E. [LEI], Minkevičius A. [LEI].
Kontroliuojama branduolių sintezė
In: Lietuvos mokslų akademijos žinios. Vilnius: Lietuvos mokslų akademija, 2018, Nr. 3 (85), p. 17-17. ISSN 2029-5707.
Ušpuras E. [LEI], Pabarčius R. [LEI], Slavickas A. [LEI].
GEMINI Plus project for HTGR nuclear cogeneration demonstration
In: Energetika (Kronika). Vilnius: Lietuvos mokslų akademija, 2018, Vol. 64, Nr. 1, p. 2-3. ISSN 0235-7208, eISSN 1822-8836.
2016
Ušpuras E. [LEI].
Paryžiaus susitarimai dėl klimato kaitos: ką jie reiškia Lietuvai ir visai energetikai
In: technologijos.lt/Energija ir energetika (el. portalas). 2016-01-13. 2016, internetinė prieiga: http://www.technologijos.lt/n/technologijos/energija_ir_energetika/S-52357/straipsnis/Paryziaus-susitarimai-del-klimato-kaitos-ka-jie-reiskia-Lietuvai-ir-visai-energetikai..
2015
Ušpuras E. [LEI].
SAM guides for Ignalina: concrete benefits derived from SARNET
In: EUROSAFE Tribune. Media Cologne, Hürth: GRS & IRSN, 2015, No. 28, p. 21-21. ISSN 1634-7676.
International projects
Seventh Framework Programme (FP7)
1
Completed
01.11.2013 - 31.10.2016
The ARCADIA project has been conceived so as to provide a twofold support to the further development of nuclear research programs in the NMS, targeting two major areas included in theMore
2
Completed
01.10.2013 - 30.09.2015
The strategic objective of NC2I-R is to structure the European public and private R&D capabilities for delivering a nuclear cogeneration demonstrator fully meeting the market needMore
3
Completed
01.09.2013 - 31.08.2016
The objective of the NUGENIA+ project is to support the NUGENIA Association in its role to coordinate and integrate European research on safety of the Gen II and III nuclear installatMore
4
Completed
01.07.2013 - 30.06.2016
Since 2013, LEI participated in the Consortium, managed by the Institut de Radioprotection et de Sûreté Nucléaire (IRSN), by implementing EU Seventh Framework Programme project AdvancMore
5
Completed
01.04.2013 - 31.03.2017
The Fukushima accidents highlighted that both the in-depth understanding of such sequences and the development or improvement of adequate severe accident management measures is essentMore
6
Today, about 80% of all energy produced comes from the fossil fuel (oil, carbon, and natural gas). European scientists are developing environmentally friendly, safe, and renewable eneMore