Kostadin Ivanov

Professor of Nuclear Engineering, Head of Department of Nuclear Engineering

ANS Fellow
Member of Nuclear Science Committee (NSC) of the Nuclear Energy Agency (NEA), OECD
Chair of Working Party on innovative issues of Reactor Systems (WPRS), Nuclear Science Committee (NSC), NEA/OECD
MEMBER OF EXECUTIVE COMMITTEE OF Nuclear Engineering Department Head Organization (NEDHO)
Member of Nuclear Energy Institute (NEI) Advisory Board

Dr. Kostadin Ivanov received a B.S. in nuclear engineering from the Moscow Institute of Power Engineering, Russia. He received his Ph.D. in reactor physics from the Institute of Nuclear Research and Nuclear Energy (INRNE), Bulgarian Academy of Sciences. He was senior research scientist at INRNE and assistant professor at the Technical University of Sofia, Bulgaria. Later, he was a visiting Fulbright scholar at the Nuclear Engineering Department, Pennsylvania State University (PSU) and visiting scientist at the Research Center Rossendorf Inc., Germany. Prior to joining the NC State faculty, he was a distinguished professor of nuclear engineering and graduate coordinator of nuclear engineering program at PSU.

Presently he studies the next generation stochastic and deterministic methods in reactor physics analysis and also nuclear cross-section generation and modeling. Ivanov also develops advanced methods for multi-physics coupling for design and safety applications. Another topic is the study of verification and validation methods as well as uncertainty quantification and propagation in modeling and simulations.




Reactor Physics

Institute of Nuclear Research and Nuclear Energy (INRNE), Bulgarian Academy of Sciences


Nuclear Engineering

Moscow Institute of Power Engineering, Russia

Research Description

Dr. Ivanov's research interests include nuclear reactor physics and multi-physics, nuclear core design and safety analysis, nuclear plant simulations, validation and verification of multi-physics calculations, and uncertainty quantification and propagation in modeling.


Propagation of VHTRC manufacturing uncertainties with RAVEN/PHISICS
Rouxelin, P., Alfonsi, A., Strydom, G., Avramova, M., & Ivanov, K. (2022), ANNALS OF NUCLEAR ENERGY, 1. https://doi.org/10.1016/j.anucene.2021.108667
Development and verification of a higher-order mathematical adjoint nodal diffusion solver
Altahhan, M. R., Geemert, R., Avramova, M., & Ivanov, K. (2021), ANNALS OF NUCLEAR ENERGY, 12. https://doi.org/10.1016/j.anucene.2021.108548
Evidence-based background for constrained uncertainty quantification in a core transient analysis
Ivanov, E., Sargeni, A., Ivanov, K., & Bruna, G. (2021), ANNALS OF NUCLEAR ENERGY, 12. https://doi.org/10.1016/j.anucene.2021.108606
Methodology for Discontinuity Factors Generation for Simplified P-3 Solver Based on Nodal Expansion Formulation
Xu, Y., Hou, J., & Ivanov, K. (2021), ENERGIES, 14(20), 6478. https://doi.org/10.3390/en14206478
Summary of comparative analysis and conclusions from OECD/NEA LWR-UAM benchmark Phase I
Delipei, G. K., Hou, J., Avramova, M., Rouxelin, P., & Ivanov, K. (2021), NUCLEAR ENGINEERING AND DESIGN, 12. https://doi.org/10.1016/j.nucengdes.2021.111474
Energy group search engine based on surrogate models constructed with the RAVEN/NEWT/PHISICS sequence
Rouxelin, P., Alfonsi, A., Ivanov, K., & Strydom, G. (2020), NUCLEAR ENGINEERING AND DESIGN, 356. https://doi.org/10.1016/j.nucengdes.2019.110356
Quantification and propagation of neutronics uncertainties of the Kozloduy-6 VVER-1000 fuel assembly using SCALE 6.2.1 within the NEA/OECD benchmark for uncertainty analysis in modelling of LWRs
Nyalunga, G. P., Naicker, V. V., & Ivanov, K. (2019), ANNALS OF NUCLEAR ENERGY, 133, 732–749. https://doi.org/10.1016/j.anucene.2019.07.016
Selected papers from the 2018 Best Estimate Plus Uncertainty International Conference (BEPU 2018) Foreword
Petruzzi, A., Ivanov, K., & Ivanov, E. (2019), NUCLEAR TECHNOLOGY, Vol. 205, pp. III-IV. https://doi.org/10.1080/00295450.2019.1676080
Uncertainty Quantification and Propagation of Multiphysics Simulation of the Pressurized Water Reactor Core
Zeng, K., Hou, J., Ivanov, K., & Jessee, M. A. (2019), Nuclear Technology, 205(12), 1618–1637. https://doi.org/10.1080/00295450.2019.1580533
The IAEA CRP on HTGR uncertainties: Sensitivity study of PHISICS/RELAP5-3D MHTGR-350 core calculations using various SCALE/NEWT cross-section sets for Ex. II-1a
Rouxelin, P., Strydom, G., Alfonsi, A., & Ivanov, K. (2018), Nuclear Engineering and Design, 329, 156–166. https://doi.org/10.1016/J.NUCENGDES.2017.12.008

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Joint Faculty Appointment between Battelle Energy Alliance and North Carolina State University for Dr. Benjamin Beeler
US Dept. of Energy (DOE)(10/20/21 - 9/30/22)
BWXT Small Mobile Nuclear Reactor (SMNR) Program Phase 1B for North Carolina State University (NCSU)
US Dept. of Defense (DOD)(4/13/21 - 6/30/22)
Integral Benchmark Evaluation of Zero-Power Tests and Multi-Cycle Depletion Experimental Data of TVA WB1 Cycles 1-3
US Dept. of Energy (DOE)(10/01/21 - 9/30/24)
Nuclear Energy University Programs - Fellowship and Scholarship Support North Carolina State University
US Dept. of Energy (DOE)(8/01/21 - 8/31/33)
Development of Simulation Capabilities and Validation Basis to Support Evaluation of Advanced Nuclear Fuel Concepts
US Dept. of Energy (DOE)(10/01/20 - 9/30/22)
Joint Faculty Appointment Between Oak Ridge National Laboratory (ORNL) and North Carolina State University (NCSU) for Dr. Scott Palmtag for 2020-2021 (FY 21).
US Dept. of Energy (DOE)(9/08/20 - 9/07/22)
Input to the Preliminary PIRT report
US Dept. of Defense (DOD)(5/01/20 - 12/11/20)
Benchmark Evaluation of Transient Multi-Physics Experimental Data for Pellet Cladding Mechanical Interactions
US Dept. of Energy (DOE)(10/01/20 - 9/30/23)
Joint Appointment between Idaho National Laboratory and North Carolina State University for Dr. Benjamin Beeler
US Dept. of Energy (DOE)(9/23/19 - 9/30/21)
Advanced Nodal Codes Scientific Developments Regarding Efficiency and Numerical Stability Improvement, CNP Core Project #4
Consortium for Nuclear Power (CNP)(7/01/18 - 6/30/22)