Povilas Poškas

Nuclear Engineering Laboratory (14)
Head (Chief research associate)
Room number:
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Book or monograph chapter


Miliauskas G., Puida E., Poškas R. [LEI], Poškas P. [LEI]. Modelling of the influence of droplet dispersity on droplet vaporization in the high-temperature flue gas in the case of combined heating In: Prime archives in sustainability . Hyderabad (Indija): Vide Leaf, 2021, p. 1-51. ISBN 978-81-944664-1-3.


Poškas P. [LEI]. Progress on Nuclear Waste Management. Nuclear Waste Governance in Lithuania In: Challenges of Nuclear Waste Governance: An International Comparison. Germany: Springer Fachmedien Wiesbaden GmbH, 2018, Vol. II, p. 139-160. ISBN 978-3-658-21440-1, eISBN 978-3-658-21441-8.



Barinova E., Beer H. F., Bradbury D., Dunzik-Gougar M. L., Fachinger J., Hand R., Jones A., Karlina O., Kascheev V., Lamouroux C., Laurent G., Leganes Nieto J. L., Li J. F., Lindberg M., Metcalfe M. P., Narkūnas E. [LEI], Norris S., Ojovan M. I., Oryšaka A., Petit L., Poškas P. [LEI], Rahmani L., Tomlinson T., von Lensa W., Wickham A. J., Zlobenko B.. Processing of irradiated graphite to meet acceptance criteria for waste disposal In: IAEA TECDOC-1790. Vienna: International Atomic Energy Agency, 2016, p. 1-148. ISSN 1011-4289 ISBN 978-92-0-104016-9.

Scientific article


Narkūnienė A. [LEI], Justinavičius D. [LEI], Poškas P. [LEI], Grigaliūnienė D. [LEI], Ragaišis V. [LEI]. The Modeling of Laboratory Experiments on Granular MX‐80 Bentonite with COMSOL Multiphysics In: Minerals. Basel: MDPI, 2022, Vol. 12, No. 3, 277, p. 1-20. ISSN 2075-163X.
Ragaišis V. [LEI], Kaliatka T. [LEI], Poškas P. [LEI], Kaliatka A. [LEI], Šmaižys A. [LEI], Janulionis R. [LEI], Narkūnas E. [LEI], Sirvydas A. [LEI], Babilas E. [LEI], Rimkevičius S. [LEI]. A proposed approach for the evaluation of consequences of a large aircraft crash accident at an RBMK type reactor site during decommissioning In: Progress in Nuclear Energy. Oxford: Elsevier, 2022, Vol. 145, 104135, p. 1-15. ISSN 0149-1970, eISSN 1878-4224.


Poškas R. [LEI], Sirvydas A. [LEI], Kulkovas V., Jouhara H., Poškas P. [LEI], Miliauskas G., Puida E.. An Experimental Investigation of Water Vapor Condensation from Biofuel Flue Gas in a Model of Condenser, (2) Local Heat Transfer in a Calorimetric Tube with Water Injection In: Processes. Basel: MDPI, 2021, Vol. 9, Iss. 8, 1310, p. 1-18. Scopus. ISSN 2227-9717.
Narkūnienė A. [LEI], Poškas P. [LEI], Justinavičius D. [LEI]. The Modeling of Laboratory Experiments with COMSOL Multiphysics Using Simplified Hydromechanical Model In: Minerals . Basel: MDPI, 2021, Vol. 13 (7), 754, p. 1-18. ISSN 2075-163X.
Narkūnas E. [LEI], Šmaižys A. [LEI], Poškas P. [LEI], Naumov V., Ekaterinichev D.. Neutron dose rate analysis of the new CONSTOR® storage cask for the RBMK-1500 spent nuclear fuel In: Nuclear Engineering and Technology. Daejeon: Elsevier, 2021, Vol. 53, p. 1869-1877. ISSN 1738-5733.
Miliauskas G., Puida E., Poškas R. [LEI], Poškas P. [LEI]. The Influence of Droplet Dispersity on Droplet Vaporization in the High-Temperature Wet Gas Flow in the Case of Combined Heating In: Sustainability . Basel: MDPI, 2021, Vol. 13, Iss. 7, 3833, p. 1-24. ISSN 2071-1050.
Ragaišis V. [LEI], Poškas P. [LEI], Kilda R. [LEI], Bartkus G. [LEI]. A review of uncertainties in the assessment of the radiological impact of liquid releases to the Ignalina NPP cooling pond lake Drūkšiai In: Annals of Nuclear Energy. Oxford: Elsevier, 2021, Vol. 157, 108228, p. 1-10. ISSN 0306-4549.
Poškas R. [LEI], Poškas P. [LEI], Račkaitis K., Zujus R. [LEI]. A numerical study of thermal behavior of CASTOR RBMK-1500 cask under fire conditions In: Nuclear Engineering and Design . Lausanne: Elsevier, 2021, Vol. 376, 111131, p. 1-9. ISSN 0029-5493.

Conference paper


Šimonis A. [LEI], Poškas G. [LEI], Poškas P. [LEI], Klevinskas G.. Decommissioning of Radon Type Radioactive Waste Storage Facility in Lithuania In: International Conference on Radioactive Waste Management: Solutions for a Sustainable Future (IAEA), November 1-5, 2021, Vienna, Austria. Vienna: IAEA, 2021, CN-294, p. 96-96..
Poškas R. [LEI], Sirvydas A. [LEI], Kulkovas V. [LEI], Poškas P. [LEI]. Preliminary investigations of water injection impact on vapour from flue gases condensation in a model of a vertical condensing heat exchanger In: The 17th International Conference of Young Scientists on Energy and Natural Sciences Issues (CYSENI 2021) Kaunas, Lithuania, May 24-28, 2021. Kaunas: Lietuvos energetikos institutas, 2021, p. 548-556. ISSN 1822-7554.
Poškas R. [LEI], Račkaitis K. [LEI], Poškas P. [LEI], Zujus R. [LEI]. Modeling and analysis of the flow structure in narrow helium and air gaps of the castor cask for RBMK-1500 spent nuclear fuel storage In: Proceedings 15th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (ATE-HEFAT2021), Virtual conference, 26-28 July 2021.. Amsterdam: American Society of Thermal and Fluids Engineers, 2021, p. 1421-1426. ISBN 978-1-77592-216-2 .
Puida E., Miliauskas G., Poškas R. [LEI], Poškas P. [LEI], Paukštaitis L.. An experimental investigation of the ęffęct of airlow heating and humidification on a water droplet’s thermal state and phase changes In: Proceedings 15th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (ATE-HEFAT2021), Virtual conference, 26-28 July 2021.. Amsterdam: American Society of Thermal and Fluids Engineers, 2021, p. 224-229. ISBN 978-1-77592-216-2.


Narkūnas E. [LEI], Šmaižys A. [LEI], Poškas P. [LEI]. Preliminary inventory of C-14 in irradiated graphite of Ignalina NPP unit 1 RBMK-1500 reactor In: EURADWASTE ’19 Conference Proceedings 9th European Commission Conference on EURATOM Research and Training in Radioactive Waste Management 4-7 June, 2019 Pitesti, Romania . Luxembourg: European Union, 2020, p. 682. ISBN 978-92-79-98750-2.
Grigaliūnienė D. [LEI], Poškas P. [LEI], Kilda R. [LEI], Narkūnas E. [LEI]. Estimation of 14C release and migration from RBMK-1500 reactor graphite disposed of in a potential geological repository in crystalline rocks in Lithuania In: EURADWASTE ’19 Conference Proceedings 9th European Commission Conference on EURATOM Research and Training in Radioactive Waste Management 4-7 June, 2019 Pitesti, Romania. Luxembourg: European Union, 2020, p. 681. ISBN 978-92-79-98750-2.


Poškas R. [LEI], Sirvydas A. [LEI], Poškas P. [LEI], Striūgas N. [LEI], Pedišius N. [LEI], Valinčius V. [LEI]. Investigation of the biofuel flue and producer gases cleaning efficiency using ESP In: E3S Web of Conferences. 7 November 2017. Didžioji Britanija . EDP Sciences, 2017, Vol.22, p. 1-7..


Grigaliūnienė D. [LEI], Poškas P. [LEI], Kilda R. [LEI]. Waste zone conceptual model effect on predicted radionuclide flux from near surface repository In: Book of papers Session 3b VLLW of International Conference on the Safety of Radioactive Waste Management (IAEA, CN-242). 2017). Vienna Austria: IAEA, 2016, p. 38-41..

International projects

Horizon 2020


The Objective: The European Green Deal, an ambitious growth strategy aligned with the Sustainable Development Goals (SDG), calls for the mobilization of the industry. Indeed, while iMore

Seventh Framework Programme (FP7)


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


The CAST project (CArbon-14 Source Term) aims to develop understanding of the generation and release of 14C from radioactive waste materials under conditions relevant to waste packagiMore


The objective of PLATENSO is to provide a proposal towards establishing the legal base for a European Entity on Socio-Economic matters linked to nuclear technology and to develop recoMore


The multiple barrier concept is the cornerstone of all proposed schemes for underground disposal of radioactive wastes. The concept invokes a series of barriers, both engineered and nMore


Gas-Cooled Reactors (GCR), RBMK and some Material Test Reactors (MTR) make use of graphite as moderator of the fuel, structures of the core and/or thermal columns. During operation, tMore



Coordinator: Lithuanian Energy Institute (LEI)More


Coordinator: Lithuanian Energy Institute (LEI), LithuaniaMore


Coordinator: Lithuanian Energy Institute (LEI)More

Other international projects


The goal of this project is to prepare the setting up of a “Joint Programming on Radioactive Waste Disposal” that would be established to coordinate at the European level, national reMore