{ Nelli Nikolaeva Zaharieva }

Scientist

 

Personal Data

Occupations: Assistant Professor
Office Address: Laboratory of "Nuclear energy and nuclear safety",
Institute of Nuclear Research and Nuclear Energy,
Bulgarian Academy of Sciences,
72 Tzarigradsko Shaussee,
1784 Sofia, Bulgaria
Office Phone: (+359) 2 97-5564
Office Fax:
E-mail: Този имейл адрес е защитен от спам ботове. Трябва да имате пусната JavaScript поддръжка, за да го видите. 
Home Address:
Home Phone:
Birth Date:
Birth Place: Sofia
Citizenship: Bulgarian
Marital Status: married

Profesional Data

Education

  • University of Chemical Technology and Metallurgy, Sofia, Bulgaria, M.Sc. Chemical Engineer Diploma № 006495 / 1991

Experience

  • 2011 until now: Assistant Professor in Institute for Nuclear Research and Nuclear Energy – Bulgarian Academy of Sciences
  • 2008-2011 Researcher, 2 degree in Institute for Nuclear Research and Nuclear Energy – Bulgarian Academy of Sciences
  • 1996 -2008 Researcher, 3 degree in Institute for Nuclear Research and Nuclear Energy – Bulgarian Academy of Sciences
  • 2003 – 2004: 6-months specialization-training as an IAEA fellow in Finland, VTT Manufacturing Technology, Espoo
  • 1994-1996 Chemical Engineer in Institute for Nuclear Research and Nuclear Energy – Bulgarian Academy of Sciences

Languages

  • English
  • Russian

Membership in Scientific Organizations

  • Bulgarian Nuclear Society

Scientific Works

  1. O.Blajiev,N.Zaharieva,G.Raichevski,K.Dinov, Study on the Corrosion Behaviour of Materials Used in VVER-1000 Plant in Aqueous Systems in the Presence of Lead, BGNS Transactions, vol. 2, No 1, 1997
  2. O.Blajiev,N.Zaharieva,G.Raichevski,K.Dinov, Electrochemical behavior of 18CrNiTi and Mn2NiMoV steels in solutions containing lead,JAIF International conference on water chemistry in NPP, 13-16 October,1998 Kashiwazaki,Japan
  3. O.Blajiev,N.Zaharieva,G.Raichevski,K.Dinov, Electrochemical behavior of 18CrNiTi steel in aqueous systems containing lead, Proceedings of the International Symposium : Contribution of Materials Investigation to the Resolution of Problems Encountered in Pressurized Water Reactors, Fontevraud IV, 14-18 September 1998 Fontevraud, French Nuclear Energy Society, 1998, p. 429, 1998.
  4. Iv.Dobrevski, K.Dinov, N.Zaharieva, P.Menut, Modeling of VVER Light-Water Reactors Activity Buildup, ICONE 8, Baltimore, USA, April 2-6,2000, CD-ROM Proceedings, No 8229
  5. T.Ruskov, R.Ruskov, Iv.Dobrevski, P.Menut, S.Konnova, N.Zaharieva, Radioactive 55Fe Contamination in the Primary Circuit of WWER-440, International Conference on WWER Performance, Modelling and Experimental Support, 1-5 October 2001, Albena, Bulgaria
  6. Ivan D. Dobrevski, Neli N. Zaharieva, Katia F. Minkova, Radka A. Ivanova, “The Concentration of the Coolant 7Li in Kozloduy Nuclear Power Plant Operating with Potassium Hydroxide as an Alkalizing Reagent (Possible Impact on the Occurrence of Axial Offset Anomaly)”, Power Plant Chemistry Journal, Vol. 5 No. 4 (2003), p.197
  7. L. Lyutov, G. Raichevski, I. Kirilova, N. Zaharieva, O. Blajiev, “Modeling of High Temperature Stress Corrosion Cracking of Austenitic Stainless Steel under Conditions close to the Steam Generators in Nuclear Power Plants”, BgNS TRANSACTIONS, Bulgarian Nuclear Society, Science and Technology Journal, Vol.8, No1, 2003, p. 56
  8. O. Blajiev, L. Lyutov, N. Zaharieva, I. Kirilova, G. Raichevski, “Investigation on the Corrosion-Electrochemical Behaviour of Austenitic Stainless Steel in Steam Generators in Nuclear Power Plants”, BgNS TRANSACTIONS, Bulgarian Nuclear Society, Science and Technology Journal, Vol.8, No1, 2003, p. 61
  9. Иван Добревски, Нели Захариева, “Нормите за ВХР на ВВЕР-440 в АЕЦ Козлодуй и реалните стойности на високотемпературното рН на топлоносителя”, Енергетика, No4, 2003, стр. 19
  10. Dobrevski I., N. Zaharieva, K.Minkova, P.Penev, G. Michailov, Hide-out return and Hide-out in Kozloduy NPP - VVER -1000 Steam generators by transient conditions during operation periods, Proc. of International Conference on Water Chemistry of Nuclear Systems, San Francisco, October 11-14, 2004
  11. В. Кирилов, И. Добревски, Н. Захариева, Проблеми при бъдещата експлоатация на първи контур на АЕЦ “Белене”, при работа с гориво с по-висока степен на обогатяване по 235U., сп.”Енергетика”, брой 1’2006, стр.15 – 17
  12. Dobrevski Iv., Zaharieva N., “The Impact of Boiling on the Chemical Environment of Heating Surfaces in Nuclear Power Plants”, J. Power Plant Chemistry (Germany), 9 (4), pp 216-222, 2007.
  13. Iv. Dobrevski, N. Zaharieva, Pressurized Water Reactor Fuel Performance Problems connected with Fuel Cladding Corrosion Processes, paper offered for presentation on the 7th International Conference on WWER Fuel Performance, Modelling and Experimental Support, Albena, Bulgaria, 17-21 Sept. 2007
  14. Iv. Dobrevski, N. Zaharieva, The Main Changes and Consequences by Burnup Extensions in PWRs. Some Recommendations for Negative Plant Performance, 16th International Conference on Nuclear Engineering (ICONE 16), May 11-15, 2008, Orlando, Florida, USA; Report ICONE16-48099, published in the CD-R Conference Proceedings
  15. 2008 International Congress on Advances in Nuclear Power Plants (ICAPP '08), June 8-12, 2008, Anaheim, California, USA, Report ICAPP '08- 8015, Iv. Dobrevski, N. Zaharieva, Katia Minkova, Tsvetan Peychinov, Radka A. Ivanova, Georgi D. Michaylov, Penyo G. Penev, N. Gerchev, Passing of Reactors WWER-1000 of NPP Kozloduy – Bulgaria to Extended Fuel Cycle Operation(Implementation of 235U Higher Enriched Fuel), published in the CD-R Congress Proceedings
  16. Iv. Dobrevski, N.Zaharieva, K. Minkova, N. Gerchev, Behavior of Antimony Isotopes in the Primary Coolant of WWER-1000-Type Nuclear Reactors in NPP Kozloduy during Operation and Shutdown, Journal Power Plant Chemistry 2009, Volume 11(No 5), pp.312-319
  17. Dobrevski, N.Zaharieva, K. Minkova, G. Michaylov, P. Penev, N. Gerchev, The Main Conditions Ensured Problemless Implementation of 235U High Enriched Fuel in Kozloduy NPP (Bulgaria) – WWER-1000 Units, Proc.of 8th International Conference on WWER Fuel Performance, Modelling and Experimental Support, 26 September – 4 October 2009, Helena Resort, Bulgaria
  18. I. Dobrevski, N. Zaharieva, Bulgarian experience with implementation of 235 U enriched fuel in WWER-1000 Units, Power Plant Chemistry (Switzerland, The International Edition), 11[12], 734-739, (2009)
  19. . Iv. Dobrevski, N. Zaharieva, The Synergic Impact of the Boiling of Water Radiolysis on the Pressurized Water Reactor Fuel Cladding’s Environment, Proc. NPC 2010 (International Conference on Water Chemistry of Nuclear Reactor Systems), Quebec City, Canada, October 3-7 2010
  20. Ив. Добревски, Н. Захариева, Биоелектрочеството – перспективен биотехнологически продукт, Наука и Общество, издание на НТС, Година XX бр.3, 26 март 2010
  21. . Ив. Добревски, Н. Захариева, Още веднъж за възобновяемите енергийни източници – ВЕИ, Наука и Общество, издание на НТС, Година XX бр.4, 29 април 2010
  22. Iv. Dobrevski, N.Zaharieva, Recommended Reactor Coolant Water Chemistry for WWER-1000 Units with U-235 Higher Enriched Fuel, 9th International Conference on WWER Fuel Performance, Modelling and Experimental Support, 17 – 24 September 2011, Helena Resort, Bulgaria, Proc., ISSN 1313-4531, pp.168-174 , INRNE, 2011
  23. Iv. Dobrevski, N. Zaharieva, Activity Buildup Prediction on some out-of-core surfaces of WWER -440 Units by Activity Transport Model and Plant Data Comparison and Evaluation, Proceedings of 10th International Conference on WWER Fuel Performance, Modelling and Experimental Support, 7 – 14 September 2013, Sandanski, Bulgaria
  24. N. Zaharieva Bulgarian experience with the implementation of 235U higher enriched fuel in WWER-1000 (water chemistry aspects), Proceedings of Technical Meeting on “Water Chemistry and Clad Corrosion/Deposition Including Fuel Failures”, held in Kiev, Ukraine, 2010, IAEA-TECDOC-CD-1692, ISBN 978-92-0-187510-5, ISSN 1684-2073, Pages 11-18, March 2013, IAEA Austria
  25. Iv. Dobrevski, N. Zaharieva, Activity Buildup Prediction on some out-of-core surfaces of WWER -440 Units by Activity Transport Model and Plant Data Comparison and Evaluation, Proceedings of the 10th International Conference on WWER Fuel Performance, Modelling and Experimental Support, 7–14 September 2013, Sandanski, Bulgaria, ISSN 1313-4531, Pages 465-471, INRNE, 2013
  26. Neli Zaharieva, Pavlin Groudev, Rositsa Gencheva, Daniela Diaconu, Marin Constantin, ARCADIA Project of 7FP of EC and INRNE project’ activities“, Poster, BgNS’s International Conference NUCLEAR POWER FOR THE PEOPLE, 2 - 5 September, 2015 Laguna Beach Resort, Sozopol, Bulgaria
  27. P.P. Groudev, N.N. Zaharieva, C.A. Margeanu, M. Constantin, Comparison of Innovative and Evolutionary NPPs in a Country-Specific Context for Bulgaria (Based on IAEA INPRO KIND – ET Methodology), BgNS TRANSACTIONS volume 22 number 1 (2017) pp. 58–64

Projects

Participation in IAEA Coordinated Research Programmes:
“Modeling of Transport of Radioactive Substances in Primary Circuit of Water Cooled Reactors” (December 1996 - April 2000) - (Bulgarian Project “Modelling activity transport in LWR” - IAEA Research Contract No 9416, 1996 - 2000);
“Data processing technologies and diagnostics for water chemistry and corrosion control in nuclear power plants (DAWAC) 2001 – 2004 – (Bulgarian Project “Approaches for the improvement of the water chemistry and corrosion control praxis and its assessment in Kozloduy NPP-Bulgaria.” - IAEA Research Agreement No 11613, 2001 – 2004);
“Optimization of Water Chemistry Technologies and Management to Ensure Reliable Fuel Performance at High Burnup and in Ageing Plants” – FUWAC 2006-2010) - (Bulgarian Project “VVER-1000 coolant chemistry improvement by extended fuel cycles” - IAEA Research Contract No 13801, 2006-2009).
Participation in Research Contracts between INRNE and NPP Kozloduy:
“Предсказване на формирането на активност (Со-58, Со-60) върху характерни повърхности и в топлоносителя в първия контур на блок No 4 на АЕЦ “Козлодуй” – 2001 – 2002.
“Изследване на явлението Hide-out / Hide-out Return в парогенераторите на блокове 1000 MW в АЕЦ Козлодуй” - 2003 – 2005
Participation in Projects with the European Commission:
GA № 605116, ARCADIA (Assessment of Regional CApabilities for new reactors Development through an Integrated Approach), FP7, (2013-2016)
GA № 605001 , ASAMPSA_E (Advanced Safety Assessment : Extended PSA), FP7 (2013-2016)
GA № 323264 , CESAM (Code for European Severe Accidents Management), FP7 (2013-2017)
GA № 662157, IVMR (In-Vessel Melt Retention Severe Accident Management Strategy for Existing and Future NPPs), Horizon 2020 - Research and Innovation Framework Programme, (2015-2019)
Participation in Bilateral scientific collaboration between Bulgarian Academy of Sciences and Macedonian Academy of Sciences and Arts (2014-2016):
Project “Analysis of the Necessity, Benefits and Requirements for the New Nuclear Power Plant Construction for the Republic of Bulgaria and the Republic of Macedonia”
Project “Synchronizing the operation of a nuclear power plant with a pumped storage power plant”