ANNUAL CONFERENCE 2023

PROGRAM COMMITTEE

ORGANIZING COMMITTEE

PARTICIPATION FEE AND PAYMENT

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INFORMATION

TIME SCHEDULE

PROGRAMME

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PROGRAM of BgNS Conference 2023

Wednesday, 08.11.2023

16:00 – 18:30

Registration

19:30 – 21:30

Welcome Reception

Thursday, 09.11.2023

08:00 – 09:00

Registration

09:00 – 11:00

Opening Session

11:00 – 11:30

Coffee break

11:30 – 13:00

Session

13:00 – 14:30

Lunch

14:30 – 16:00

Session

16:00 – 16:30

Coffee break

16:30 – 17:30

Session

17:30 – 18:30

Posters’ Session

Friday, 10.11.2023

9:00 – 11:00

Young Generation Competition – Oral

11:00 – 11:30

Coffee break

11:30 – 12:00

Young Generation Competition – Poster

12:00 – 13:30

Session

13:30 – 14:30

Lunch

14:00 – 17:30

Excursion

  19:30 – 23:00

Conference Diner at Hotel Restaurant

Awarding the best YG presentations

Saturday, 11.11.2023

10:00 – 12:00

Session

12:00

12:30- 15:30

Closing of the conference

Excursion to Arbanasi, as desired

Wednesday, 08.11.2023

16:00 – 18:00

Registration, Entrance Hall

19:30 – 22:30

Welcome wine cocktail – Entrance Hall

Thursday, 09.11.2023

08:00 – 09:00

Registration, In front of the Kaloyan Conference Room

                                 Kaloyan Conference Room

09:10

Mladen MITEV, BgNS President – Welcome words

09:15

Leon CIZELJ, ENS president – Welcome words – Video

09:20

Pavlin GROUDEV, Chair of the conference, Opening the Conference

Session: NEWS AND OVERVIEWS

Chairs: Mladen MITEV (INRNE-BAS, BG) and
David WINFIELD (Canada)

09:30 – 09:45

Jiří ŽĎÁREK, UJV Rez, Czech Republic, ’’OFFERR Project Status of Work’’

09:45 – 10:00

Plamen V. PETKOV¹, Dimitar Lyutov¹, Nikol Borisova², Boyan Todorov² and Hristo Iliev¹, Sofia University “St. Kliment Ohridski,”, Bulgaria, ¹) Faculty of Physics; ²⁾ Faculty of Chemistry and Pharmacy, ’’Overview of Small Modular Reactors (SMR) concept, based on STAR-LM, proposed in Sofia University’’

10:00 – 10:15

Dimitar TONEV, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Bulgaria, ’’Institute for Nuclear Research and Nuclear Energy – Bulgarian Academy of Sciences Activities – 2023’’

10:15 – 10:30

Lyuben MARINOV, Kozloduy NPP, Bulgaria ’’Coal to Nuclear Transition – Advanced nuclear technologies implementation’’

10:30 – 10:45

Rusiyan TSIBRANSKI, Kozloduy NPP, Bulgaria, ’’Participation in Interlaboratory comparissons, a Quality criterion for Radioanalytical Laboratory Measurements’’

10:45 – 11:15

Coffee break

Session: NPP ISSUES AND SAFETY

Chairs: Krasen RASHKOV (Kozloduy NPP, BG) and

Viktor KOLYKHANOV (Odessa NPU, UA)

11:15 – 11:30

Angel PAPUKCHIEV, Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany, ’’Coupling of Computational Fluid Dynamics Codes with Structural Mechanics and System Thermal-Hydraulics Programs and Their Validation on Nuclear Reactor Relevant Experiments’’

11:30 – 11:45

Marta PETRUNEAC¹, Marin Focșăneanu¹, Robert Sîrbu¹, Anca-Diana Popescu² ,¹⁾– Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Magurele, ²⁾– Institute of Archeology “Vasile Pârvan” Bucharest, Romania, ’’Advanced facilities for material analysis at IFIN-HH: a micro-focus X-ray CT study’’

11:45 – 12:00

Lora RAYCHEVA, Georgi Varbanov, EnproConsult Ltd, Bulgaria, ’’Interpretation of the natural hazards parameters for the purpose of PSA’’

12:00 – 12:15

Valentin GEORGIEV¹, Petya Vryashkova², Pavlin Groudev², ¹⁾Kozloduy NPP, ²⁾Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Bulgaria, ’’Assessment of primary to secondary side leakage for different break sizes of Steam Generator (SG) tube rupture’’

12:15 – 12:30

Petar GORCHEV, Bulgaria, ’’Advanced Passive PWR (AP 1000) Reactor with advanced technology and independent from active forces Passive Safety System’’

12:30 – 12:45

Blagorodka VELEVA¹, Jussi Paatero², Elena Hristova¹, ¹⁾ National Institute of Meteorology and Hydrology (NIMH), Bulgaria, ^2- Finnish Meteorological Institute (FMI), Finland, ’’Studies of atmospheric radioactivity in Bulgaria during the last six decades’’

13:00 – 14:20

Lunch break

Session: POSTERS

Chairs: Petya VRYASHKOVA (INRNE-BAS, BG)
and Krassimira ILIEVA (BgNS)

14:30 – 15:20

The posters that will be presented are lied below.

Request for a short (3 min) presentation has to be done preliminary to the chairs.

1.     Victor Kolykhanov^1*, Igor Kozlov¹, ¹⁾Odesа Polytechnic National University, Faculty of Energy, Odesa, Ukraine, ’’Study of the diffusion neutron flux from point source crossing a flat boundary using Monte-Carlo method’’

2.     I. L. Kozlov, M.О. Holovin, S. V. Vistiak, O. I. Kozlov, Odessa Polytechnic National University, Ukraine, ’’Strategy for the Reliable Power Supply Development Taking into Account the Renewable Energy Sources’’

3.     E. Geleva, D. Tonev, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Bulgaria, ’’Natural radioactivity content in Bulgarian mineral water’’

4.     Krasen Rashkov, Kozloduy NPP, Bulgaria, ’’Constructive Solutions to avoid Containment Bypass in KOZLODUY NPP during severe accidents’’

5.     Tzvetelina Beshirova, Kozloduy NPP, Bulgaria, ’’Core Committee Meeting 2024’’

6.     Ivan Stoyanov, Kozloduy NPP, Bulgaria, ’’Defects in the operation of nuclear fuel – nature and development’’

7.     Greta R. Nedelcheva, Kozloduy NPP, Bulgaria, ’’Formation of SS (surveillance specimens) groups for testing and research’’

8.     Pavel Batalov, Kozloduy NPP, Bulgaria, ’’The contribution of “INVESTMENTS DEPARTMENT” in management of the NPP KOZLODUY investment program’’

9.     Deyan Atanasov, Kozloduy NPP, Bulgaria, ’’The realization of the investment program – a guarantee for the NPP KOZLODUY’s future’’

10. Marin Focșăneanu¹, Marta Petruneac¹, Robert Sîrbu¹, Anca-Diana Popescu²– Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), ²⁾ – Institute of Archeology “Vasile Pârvan” Bucharest, Romania, ’’Non-destructive investigations of various archaeological findings’’

11. L. Dobrev, D. Dimitrova, B. Slavchev, Z. Zahariev, S. Krstevski, Institute for Nuclear Horia Research and Nuclear Energy – Bulgarian Academy of Sciences, ’’Radioanalytical procedure for determination of uranium specific activity in drinking water’’

15:20 – 15:50

Coffee break

Session: HUMAN RESOURCES IN NUCLEAR

Chairs: Albena GEORGIEVA, Nuclear Regulatory Agency, Bulgaria

and Kalin FILIPOV (TU-Sofia, BG)

15:50 – 16:15

Albena GEORGIEVA, Nuclear Regulatory Agency, Bulgaria,’’Human resources development in the nuclear sector. National Strategy and 3-years action plan’’

16:15 – 16:30

Iskren CVETKOV, Kozloduy NPP, Bulgaria, ’’Enhancing the Existing National Nuclear Capacity Building Infrastructure to Support Human Resource Development and Nuclear Knowledge Management Aspects. Attracting the Next Generation of Nuclear Professionals via Interactive Methods and Instruments (BUL 0013 Project, IAEA TC Programme)’’

16:30 – 16:45

Marinela ILIEVA, Abilico AD, Bulgaria, ’’The opportunities for cross-border and multidisciplinary training, provided through the ENEN2plus project, financed by the EC HORIZON EUROPE program’’

16:45 – 17:00

Nadezhda RANDELOVA, NPP Kozloduy, Bulgaria, ’’An open lesson on Aage Niels Bohr with contributions to physics’’

17:00 – 17:15

Venko STOEV, Kozloduy NPP, Bulgaria, ’’Competition for youth nuclear innovation – partnership between Kozloduy NPP and BgNS society’’

17:15 – 17:30

Valentina LAZAROVA, Kozloduy NPP, Bulgaria, ’’Challenge for teenagers – competition on the topic „Nuclear energy – a secure future”

17:30-17:45

Nevena VELICHKOVA, Kozloduy NPP, Bulgaria, ’’Plan your future in nuclear energy’’

17:45 – 18:00

Discussion

Friday, 10.11.2023

Kaloyan Conference Room

YOUNG GENERATION COMPETITION

Chairs: Angel PAPUKCHIEV (GRS gGmbH, Germany) and
Lyuben MARINOV (Kozloduy NPP, BG)

8:30 – 10:30

Oral presentation

For presentation – 15 min

1. Nikol BORISOVA, Plamen Petkov and Hristo Iliev, Physics department, Sofia University “St. Kliment Ohridski”, Bulgaria, ’’Investigation of Stretching Force Reaction at Normal Conditions of Capillary Bridges for Liquid Solutions Used as VVER-1000 Coolants’’
2. Galina DIMITROVA, A. Demerdjiev, D. Tonev, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Bulgaria, ’’Assessment of the Radiation Fields Induced by Beam Losses at the INRNE-BAS Cyclotron Facility’’
3. Viktoria MONDESHKA, Technical University of Sofia, Bulgaria, ’’Analysis and assessment of the significance of nuclear energy in the context of sustainable energy development’’
4. Petar HRISTOV, Sofia University “St. Kliment Ohridski”, Bulgaria, ‘‘Identification of VVER-1000 nuclear fuel defects‘‘
5. Ivelina STEFANOVA, Sofia University “St. Kliment Ohridski”, Bulgaria, ‘‘VVER-1000 reactor core internal structure contribution to facilitation of the core design ‘‘
6.  Tsvetelina YORDANOVA, Sofia University “St. Kliment Ohridski”, Bulgaria, ’’Nuclear fuel cycle implemented in Kozloduy NPP‘‘
7. Debora MITEVA, Sofia University “St. Kliment Ohridski”, Bulgaria, ’’Primary VVER-1000 circuit capability to perform the function of a safety barrier‘‘
8. Miglena SHARKOVA ¹ and Venelina Boishina ^{2 , 1)}Technical University of Sofia,Bulgaria, ²⁾ University of Chemical Technologies and Metallurgy –Sofia, Bulgaria, ‘‘Approach of using Case-Base Reasoning in combination of Fault Decision Tree for Risk Assessment of NPP Control‘‘

10:30 – 10:35

Voting for oral presentation

10:35 – 10:50

Poster presentation

Request for a short (3 min) presentation has to be done preliminary to the chairs

1        Boris ANASTASOV¹, Plamen V. Petkov², ¹International School UWEKIND, ²Sofia University “St. Kliment Ohridski”, ”Nuclear propulsion engines, new ways for travels in space“

2        Branimira MARKOVA, Technical University of Sofia, Bulgaria, ’’Use of small modular reactors for seawater desalination’’

3        Nikolay HRISCHEV, Technical University of Sofia, Bulgaria, ‘‘Radioactive pollution due to human activities‘‘

10:50 – 10:55

Voting for the poster presentation

10:55 – 11:25

Coffee break

11:30 – 15:30

Excursion on Veliko Tarnovo Town

Session: NPP ISSUES AND SAFETY (cont.)

Chairs: Yavor ANDREEV (Theta consult, BG) and

Igor KOZLOV (Odessa NPU, UA)

15:45 – 16:00

Dimitar LAZAROV, Kozloduy NPP, Bulgaria, ’’Defining the isothermal reactivity coefficient of Kozloduy NPP Units 5 and 6 with two positions of the CR control group in a regular reactivity Control Equipment (RCE’)’’

16:00 – 16:15

Ludmil N. NEDELCHEV, Kozloduy NPP, Bulgaria, ’’Prolongation of the terms for irradiation of assemblies with SS in a reactor of the VVER-1000 (B-320) type’’

16:15 – 16:45

Coffee break

Session: APPLICATION AND EXPERIMENT IN NUCLEAR

Chairs: Lyuben DOBREV (INRNE-BAS, BG) and
Plamen PETKOV (Sofia University “St. Kliment Ohridski, BG)

16:45 – 17:00

Dimitar Lyutov¹, NASKO GORUNSKI¹, Plamen V. Petkov^1*, Boyan Todorov² and Hristo Iliev¹, Sofia University “St. Kliment Ohridski,”, Bulgaria, ¹Faculty of Physics, ²Faculty of Chemistry and Farmacy, ’’Experimental study of liquid tin for application in small modular fast reactors (SMFR)’’

17:00 – 17:15

Ion BURDUCEA, G. Velişa, R. F. Andrei, A. Enciu, D. Iancu, D. A. Mirea, A. Spiridon and M. Straticiuc, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering –IFIN-HH, Magurele, Romania, ’’11 years of experiments at the 3 MV Tandetron from IFIN-HH’’

17:15 – 17:30

Angel DEMERDJIEV, D. Tonev, N. Goutev, G. D. Dimitrova, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Bulgaria ’’Shielding Assessment of the INRNE-BAS Cyclotron facility with the Monte Carlo Code FLUKA’’

17:30 – 17:45

Blagorodka VELEVA ¹, B. Slavchev ², L.Dobrev ², L.Kinova, D. Dimitrova², ¹⁾ National Institute for Meteorology and Hydrology, ²⁾ Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Bulgaria, ’’Application of Alpha Spectrometry for Analyses of Actinides in Low Level Radioactive Waste from Kozloduy NPP”

19:30 – 23:30

Gala dinner, Hotel Restaurant

Awarding the best YG presentations