Годишна конференция на БЯД 2022










BgNS conference Announcement
Participation form [EN][BG] PROGRAM of BgNS Conference[PDF]



The conference “Nuclear energy for the people” will provide to academic and industrial experts a common forum to present and discuss the news and issues concerning nuclear technology and nuclear applications. Bulgarian and foreign professionals, experts and researches, related to the nuclear energy are invited to take part. The educational policy is a key element in the building of public engagement/acceptance toward nuclear applications including energy production. The conference environment shall help in creating and engaging more young professionals in nuclear engineering and applications.


  • Advances in Nuclear technology Radiation protection
  • Education and Training Nuclear in Medicine
  • NPP Safety NPP Lifetime Management
  • NPP Decommissioning RAW Management
  • Safety Culture


The authors should submit extended abstracts of up to 2 pages (maximum 4000 symbols). The abstract should contain: 1) paper title, 2) authors’ full names and addresses, 3) name, address, phone and e-mail of the author to whom subsequent correspondence should be directed, 4) five keywords in order of importance. The abstract should clearly state background, objectives, results and conclusions. It may contain figures, tables and pictures.
The Organizing Committee will inform you about the acceptance of your paper for oral or poster presentation.


The papers accepted for presentation on the conference are eligible for publishing in the BgNS Science and Technology Journal. Refer to www.bgns.bg for more information.


The young authors, not older than 35 years, being first author could take part in Young Authors’ Competition (YAC) for Best Presentation.
Participants who have being ranked first in the previous edition of the YAC are not allowed to take part in the Young Authors’ Competition.

The authors should submit full text of the presentation of up to 6 pages. The paper should contain: 1) paper title, 2) name, address, phone and e-mail of the first author, 3) authors’ names and full address, 4) five keywords in order of importance, 5) abstract, and 6) full text.
The presentations should state clearly background, objectives, results and conclusions.
The Competition Commission will review and evaluate the presented papers. You will be informed about the acceptance of your paper for oral presentation at the conference. The rest of the papers could participate in the competition for best Poster award. The best presentations nominated by both, the conference participants and Competition Commission, will be awarded.

The evaluation criteria in the competition are: correspondence with the conference title, topicality, clear statement of objectives, subject, results and conclusions, understandability, attractiveness and visualization, balance between text and images.


English and Bulgarian
We kindly ask the reports to be presented by slides in English.


Submission of Participation form and Abstract 01.09.2022
Submission of Full paper for Young Authors Competition 01.09.2022
Notification of acceptance for Young Authors Competition 10.09.2022
Notification of  acceptance  for paper presentation 12.09.2022
Submission of Participation form only 15.09.2022
Conference open 28.09.2022








Members in ALFABET order:



Anton CHAUSHEVSKI, North Macedonia

Algirdas KALIATKA , Lithuania

Bogomil MANCHEV, Bulgaria

Denis VERRIER, France

Dimitar TONEV, Bulgaria

Fabrizio GABRIELLI, Germany

Fulvio Mascari, Italy

Igor Kozlov, Ukraine

Jiri ZDAREK, Czech Republic

Kalin FILIPOV, Bulgaria

Lyuben MARINOV, Bulgaria

Leon CIZEJI, Slovenia

Luis E. HERRANZ, Spain

Marin CONSTANTIN, Romania

Olivia COINDREAU, France


Sandro PACI, Italy

Sevostyan BECHTA, Sweden

Stanislav GEORGIEV, Bulgaria

Stephan BRUMM, Netherlands

Zoltán HÓZER, Hungary

















Mladen Mitev, INRNE-BAS and BgNS President

Krassimira Ilieva, BgNS
Albena Georgieva,
Petya Vryashkova,
Krasteva, INRNE-BAS



The Participation fee is 220 EUR

The early registration, before 01.09.2022, is 190 EUR

Students participation fee is 100 EUR

The Participation fee includes:

  • Admission to BgNS 2022 Conference
  • Certificate of Participation
  • Publication of an abstract in the Book of Abstracts
  • Oral or poster presentation in Conference session
  • Conference kit
  • Coffee breaks between the sessions
  • Welcome Cocktail
  • Conference Dinner
  • Excursion
  • Accompanying person fee is 80 EUR

The accompanying person fee includes Welcome reception, Conference Dinner, and social event participation.


Participation fee should be paid via bank transfer:

Bulgarian Nuclear Society, UniCredit Bulbank

IBAN: BG92 UNCR 7630 1208 9962 05,


Specify: your name, BgNS Conference 2022




or fill and send by e-mail Participation form [EN][BG]

Conference e-mail: conference@bgns.bg



BgNS, Bulgaria, 1784 Sofia,

72 Tzarigradsko Chaussee Blvd

Petya Vryashkova, BgNS Secretary General

Mobile +359 898 435 141





The BgNS conference will be held at

Frédéric Joliot-Curie International House of Scientists at St. Constantine and Elena Resort

offers special  reduced rates for the conference:

Single room – 69BGN

Double room / for two persons – 95 BGN

The price is per night and includes breakfast, parking, Wi-Fi in the rooms, tourist insurance and VAT 9%.

How to reach The Hotel

Varna Airport – The Hotel – 20 km

Sofia The Hotel – 450 km

Two way transfer service, price per person:
Varna Airport – The Hotel – Varna Airport – max 4 persons – 70 BGN
Varna Airport – The Hotel – Varna Airport – min 5 persons up to 8 persons – 40 BGN
Varna railway station – The Hotel – Varna railway station – max 4 persons – 40 BGN
You could order to: hotel@ihsvarna.com

by car GPS:

43.231383, 28.011874

Driving along the Highway Hemus E 79 from Sofia to Varna you can find The Hotel Frédéric Joliot-Curie International House of Scientists at St. Constantine and Elena Resort

Your booking for The Hotel will be guaranteed if done before 15.09.2022. After this date rooms are provided if available.

We encourage you to make your reservation ON TIME

by e-mail:

1. To The Hotel hotel@ihsvarna.com
2. To the conference secretariate if the Participation fee has been paid: conference@bgns.bg

Specify in the booking: You name and “for BgNS conference”

A day before (27 September 2022) and day after (2 October 2022) the conference, rooms could be booked at the same price.



Saints Constantine and Elena

Saints Constantine and Elena is Bulgaria’s oldest resort complex. It is located 8 km from downtown Varna, between the city and The Golden Sands Resort. The area’s climate is typically Continental Mediterranean, with hot dry summers; the median temperature during June is 22 degrees centigrade. 
The resort is situated in a forest of deciduous shade trees, and there are 7 mineral springs within its domain. The springs are between 1,800 and 2,050 meters deep with an average constant flow of 175 liters per second, and their temperature is between 40 and 60 degrees centigrade. Thanks to these hot springs, the resort has long been one of the Black Sea coast’s most popular spas.
The resort derives its name from the venerable monastery Saints Constantine and Elena located here. Details of the monastery’s history are not known, but what is known is that it was rebuilt during the first half of the 19th century. The resort, which was already a popular tourist destination at the turn of the twentieth century, was known as The Druzhba (Friendship) Resort during the socialist era.
The beach at Saints Constantine and Elena is 3.5 kilometers long, and there are a number of hotels at the complex. Attractions besides the thermal baths include a dock for yachts, tennis courts, football pitches, and a variety of water sports and seaside attractions. The complex also offers stores, restaurants, bars, a post office, a drugstore, and a fitness center. Nearby is the Evksinograd Palace – the former summer residence of the Bulgarian monarchs Alexander I, Ferdinand I, and Boris III.

Source: https://bulgariatravel.org/saints-constantine-and-elena/

Nearly Spa & Wellnes: St. Constantine and Elena (https://visitstconstantine.bg/spa)

In The Hotel: Indoor swimming pool with mineral water and a medical and spa center offering a wide range of services


Friday 30.09.2022, 14.30 – 17.30 – Palace Evksinograd

In case of impossibility:
Excursion: Friday 30.09.2022, 14.30 – 17.30
Aladzha Monastery situated in “The Golden sands” natural park.



Wednesday, 28.09.2022

16:00 – 18:30


19:00 – 19:30

19:30 – 21:30

Invited speech

Welcome Reception

Thursday, 29.09.2022

08:00 – 09:00


09:00 – 11:00

Opening Session

11:00 – 11:30

Coffee break

11:30 – 13:00


13:00 – 14:30

Lunch, Hotel Restaurant

14:30 – 16:00


16:00 – 16:30

Coffee break

16:30 – 17:30


17:30 – 18:30

Posters’ Session

Friday, 30.09.2022

9:00 – 11:00

Oral Young Generation Competition

11:00 – 11:30

Coffee break

11:30 – 12:00

Posters Young Generation Competition

12:00 – 13:30


13:30 – 14:30

Lunch, Hotel Restaurant

14:30 – 17:30


  20:00 – 24:00

Conference Diner at Hotel Restaurant

Awarding the best YG presentations

Saturday, 01.10.2022

10:00 – 12:00



Closing of the conference





Recommendation to the speakers: Keep 3-5 minutes of the time of your presentation for Q&A

Wednesday, 28.09.2022

16:00 – 18:30

Registration, In front of the Conference Room No 1

19:30 – 22:30

Welcome wine cocktail – Panorama cafethe top floor of the hotel

Thursday, 29.09.2022

08:00 – 09:15

Registration, In front of the Conference Room No 1


                                  Conference room No 1


Mladen MITEV, BgNS President – Welcome words


Leon CIZELJ, ENS presidentWelcome words


Pavlin GROUDEV, Chair of the conference, Opening the Conference



Chairs: Mladen MITEV (INRNE-BAS, BG) and Mladen MILCHEV (Kozloduy NPP, BG)

09:30 -10:00

Jiri Zdarek, Petr Vomacka, ÚJV Řež, Czech Republic, ’’ Lifetime management and refurbishment‘‘

10:00 – 10:30

Lyuben Marinov, NPP Kozloduy New Builds Plc, Bulgaria, “Status and challenges facing the project for new nuclear power at Kozloduy NPP”

10:30 – 11:00

Boyka Nenkova, Petar Manchev, “GCR” Ltd, Bulgaria, Integrated Management System – a Key Factor for Success of the Organization

11:00 – 11:30

Coffee break



Chairs: Luben MARINOV (Kozloduy NPP New Build, BG) and

Viktor KOLYKHANOV (Odessa NPU, UA)

11:30 – 12:00

David Mauritzson, Jimmy Nilsson, Veselin Lefterov, Jonathan Al-Ani, Westinghouse Electric Sweden AB – Bulgaria Branch, Westinghouse’s VVER-1000 model for APROS

12:00 – 12:30

Slavyan Lachev, Bulgarian Energy Holding EAD, Bulgaria, Diversification and the Need for Its Implementation in the Nuclear Sector

12:30 – 13:00

E. Kostov, Á. Pérez-Salado Kamps, Ch. Hartman , D. Zeniuk, H. Troselius, Westinghouse Electric Sweden AB – Bulgaria Branch, Innovative Long Term Containment Cooling System for VVER-440

13:00 – 14:30




Chairs: Luben MARINOV (Kozloduy NPP New Build, BG) and

Viktor KOLYKHANOV (Odessa NPU, UA)

14:30 – 15:00

Bilyana Simeonova, NPP Kozloduy New Builds Plc, Bulgaria, “ Environmental monitoring of the site approved for the deployment of the new nuclear power plant at Kozloduy NPP”

15:00 – 15:30

Lorenzo Santini, Ivaylo Mirchev, Worley Nuclear Services JSC, Bulgaria, “Worley Forefront Activities in the SMR Space: Focus on Coal to SMR Retrofitting”

15:30 – 16:00

Emil Kichev, Technical University of Sofia, Bulgaria, ’’Once again for the lifetime of nuclear reactors: Myths and reality’’

16:00 – 16:30

Coffee break

16:30 – 17:00

Session: POSTERS


Chairs: Krassimira ILIEVA (BgNS) and



POSTERS listed behind the Program will be presented.

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


  1. V.I. Skalozubov, I.L. Kozlov, Hani Hayo,О.І. Kozlov, D.S. Bundev, Odessa National Polytechnic University, Ukraine, “Lessons from the Chernobyl Accident for the Modern Nuclear Power Industry Environmental Safety”.
  2. Victor Kolyhanov, Igor Kozlov, Kyrulo Murenko, Odessa National Polytechnic University, Ukraine,The Reliability Estimation of the Turbine Lubricating Oil System for VVER-1000.
  3. L.E. Herranz (CIEMAT), S. Paci (UNIPI), I. Ivanov (TUS), P. Groudev (INRNE-BAS), ’’ MUSA – Management and Uncertainties of Severe Accidents – subjects and focal points of the project’’

L. Dobrev1, B. Slavchev1, D. Dimitrova1, S. Krastevski1, Z. Zahariev1, Tz. Nonova1, B. Veleva1, E. Geleva1, D. Tonev1, 1-Institute for Nuclear Research and Nuclear Energy – Bulgarian Academy of Sciences, ’’Comparison of the results of gross alpha and gross beta activity in tap water samples from central southern Bulgaria from 2019 till now’’

Friday, 30.09.2022

Conference room No. 4




Chairs: Dobromir DIMITROV (INRNE-BAS, BG) and Petr Vomachka (UJV Rez, Czech Republic)

09:00 – 11:00

For presentation – 15 min plus, for questions – 3 min.

1. Aleksandar Georgiev, Sofia University ,,st. Kliment Ohridski”, Bulgaria,‘‘Nuclear safety culture‘‘

2. Lora Raycheva , Georgi Varbanov, EnproConsult Ltd, Bulgaria

’’Application of RVT for Generation of Floor Response Spectra for the PSA Elaboration’’

3. Nikol BORISOVA2, Plamen V. Petkov*1, Boyan Todorov2 and Hristo Iliev1, Sofia University “St. Kliment Ohridski”, 1Faculty of Physics, 2 Faculty of Chemistry and Pharmacy, Bulgaria, “Modeling of VVER-1000 primary coolant chemistry during normal reactor operation and investigation of coolant/wall interactions

4. Sonya Hammashi1, Plamen V. Petkov2, 1International School UWEKIND, Bulgaria, 2Sofia University “St. Kliment Ohridski,”, Bulgaria,

’’New concepts in development of nuclear energy (Small modular reactors with lead containing coolant)’’

5. Simona Miteva, B. Marinova, GCR Ltd, Bulgaria, Use of PSA methods to evaluate technical decisions performed on Unit 5 and 6 on the Kozloduy NPP

6. Tsvetan Yovov, Technical University of Sofia, Bulgaria, ‘‘NPP Safety‘‘


7. Ivan Stoyanov1, Alexander Tomov2 and Plamen Petkov1,

1Faculty of physics, Sofia University “St. Kliment Ohridski”, 5 J. Bourchier Blvd,

Sofia 1164, Bulgaria, 2Kozloduy NPP, Kozloduy 2230, Bulgaria,

‘‘Defects in the operation of nuclear fuel and root causes for their occurrences and growing‘‘

8. Angel Ivanov, Technical University of Sofia, Bulgaria, ’’Economics properties comparison of conventional nuclear power reactors and SMRs with pressurized water’’

11:00 – 11:10


11:10 – 11:30

Coffee break



Chairs: Kalin FILIPOV (Technical University of Sofia, BG) and
Igor Kozlov (Odessa NPU, UA)

11:30 – 11:50

Vladimir Yurukov, Ivaylo Efremov, ATP-AtomToploProekt ltd, Bulgaria, ’’Approaches, main results and conclusions in the implementation of the activities under the Contract with the Kozloduy NPP “Design of a topic: Construction of a System for Supply of Cooling Medium in the Reactor Core in Conditions of Severe Accident and Total Black-out with Mobile Means”

11:50 – 12:10

Tsvetan Andreev, Theta Consult Ltd, ’’Radiation Control and Radiation surveys In Situ. Control of radioactive contaminations’’

12:10 – 12:30

Plamen Petkov1*, Dimitar Todorov2, Anton Ziapkov1, Nedislav Veselinov1, Kalojan Genkov 1, and Nikolay Zografov 1, 2, Faculty of Physics, Sofia University, Bulgaria, 2 – Danlex EOOD Research center, Bulgaria, Thermal Monitoring of an X-ray Generator and Development of Criteria for Failure Prevention by Condition Based Maintenance

12:30 – 12:50

Yavor Andreev, Theta Consult Ltd, Bulgaria, ’’Nuclear and radiation terrorism. How are the borders Bulgaria protected’’

12:50 – 13:10

Lyuben Dobrev1, Dobromir Dimitrov1, Mladen Mitev1, Tzvetana Nonova‑1, 1-Institute for Nuclear Research and Nuclear Energy – Bulgarian Academy of Sciences, ’’Determination of the specific activity of 59Fe in iron activation detectors’’

13:20 – 14:30


14:30 – 17:30

Excursion to Palace Evksinograd 

19:30 – 23:30

Gala dinner, Hotel Restaurant

Awarding the best YG presentations