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21 results on '"Dolganov, K."'

13. Main Findings, Remaining Uncertainties and Lessons Learned from the OECD/NEA BSAF Project

Author

Pellegrini, M., primary, Herranz, L., additional, Sonnenkalb, M., additional, Lind, T., additional, Maruyama, Y., additional, Gauntt, R., additional, Bixler, N., additional, Morreale, A., additional, Dolganov, K., additional, Sevon, T., additional, Jacquemain, D., additional, Journeau, C., additional, Song, J. H., additional, Nishi, Y., additional, and Mizokami, S., additional

Published
2020
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15. Overview and Outcomes of the OECD/NEA Benchmark Study of the Accident at the Fukushima Daiichi NPS (BSAF) Phase II—Results of Severe Accident Analyses for Unit 1

Author

Luis Enrique Herranz, Marco Pellegrini, Terttaliisa Lind, Martin Sonnenkalb, Godin-Jacqmin, L., Claudia López, Dolganov, K., Cousin, F., Tamaki, H., Kim, T. W., Hoshi, H., Nathan Andrews, and Tuomo Sevón

Abstract

Phase II of the OECD/NEA Project “Benchmark Study of the Accident at the Fukushima Daiichi Nuclear Power Plant (BSAF)” was established in mid-2015. The objectives have been similar to phase 1 of the project but with an extended analysis period of 3 weeks from the occurrence of the earthquake, a major focus on fission product (FP) behaviour and releases to the environment and the comparison to various data including radiological data and results of backwards calculations of the source term. Nine organizations of six countries (CIEMAT;, IAE, JAEA and NRA Japan; CEA, IRSN France; IBRAE Russia, KAERI Korea; NRC/DOE/SNL U.S.A.; VTT Finland) submitted results of their calculated severe accident scenarios for Unit 1 at the Fukushima Daiichi site using different severe accident codes (ASTEC, MAAP, MELCOR, SAMPSON, THALES-KICHE). The present paper describes the findings of the comparison of the participants results for Unit 1 against each other and against plant data, the evaluation of the accident progression and the final status inside the reactors. Special focus is on RPV status, melt release and FP behaviour and release. Unit specific aspects will be highlighted and points of consensus as well as remaining uncertainties and data needs will be summarised. The results for Units 2 and 3, and an overall summary are presented in separated papers.

Published
2019

16. Issues of Safety Assessment of New Russian NPP Projects in View of Current Requirements for the Probability of a Large Release.

Author

Morozov, V. B., Kiselev, A. E., Kiselev, A. A., Dolganov, K. S., Tomashchik, D. Yu., and Krasnoperov, S. N.

Abstract

This paper considers the issues of safety assessment of new nuclear power plant (NPP) projects with VVER Generation III+ reactors in relation to the probability target for large release, which is subject to verification in the development of a full-scale Probabilistic Safety Assessment (PSA) Level 2. The design solutions implemented in Generation III+ reactors allow reducing the probability of a severe accident (SA) due to internal initial events to a level of 10−7/year. Exceeding the radioactive release criterion may thus be related mainly to the consequences of beyond-design external events. This places special demands both for the selection of SA scenarios to consider and the methods for modeling the accident progression and consequences. The paper presents a method for selecting the representative SAs in the frame of PSA of new VVER NPP projects and a practical example of radiological analysis for two bounding accidents at an arbitrary NPP using an advanced integrated computer code system. [ABSTRACT FROM AUTHOR]

Published
2021
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19. Status and results of the OECD benchmark exercise on TMI-2 plant

Author

Bandini, G., Weber, S., Austregesilo, H., Drai, P., Buck, M., Barnak, M., Matejovic, P., Muscher, H., Kretzschmar, F., Hoffmann, M., Sallus, L., Bulle, J., Lele, H.G., Chatterjee, B., Dolganov, K., Kapustin, A., Tomashchik, D., Groudev, P., Stefanova, A., Gencheva, R., and Amri, A.

Subjects
ddc:620, Engineering & allied operations
Published
2013

20. Progress on severe accident code benchmarking in the current OECD TMI-2 exercise

Author

Bandini, G., Weber, S., Austregesilo, H., Drai, P., Buck, M., Barnak, M., Matejovic, P., Muscher, H., Kretzschmar, F., Sallus, L., Bulle, I., Hoffmann, M., Lele, H.G., Chatterjee, B., Dolganov, K., Kapustin, A., Tomashchik, D., Groudev, P., Stefanova, A., Gencheva, R., and Amri, A.

Subjects
ddc:620, Engineering & allied operations
Published
2013

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