Projects
LLC “Analytical Research Bureau on NPP Safety”
has performed a range of scientific research works for Ukrainian clients and
abroad. Some of Ukrainian
similar projects groups and individual works are presented below as at the mid-2025.
Most of them were reviewed and approved by State Nuclear Regulatory
Inspectorate of Ukraine.
- A number of projects on updating the materials of the Safety
Analysis Report (SAR) and developing chapters
of the Periodic Safety Reassessment Report (PSRR) as part of the
work on extension of unit operation beyond the design period for:
- Unit 3 of South Ukraine NPP;
- Units 1,2 of Rivne NPP;
- Unit 1 of Khmelnytsky NPP;
- Units 3,4,5,6 of Zaporizhzhia NPP.
- A number of projects on thermal-hydraulic analysis for
substantiation of allowed number of equipment and pipelines loading cycles
for purposes of lifetime extension for:
- Unit 1 of the South Ukraine NPP;
- Unit 1 of the Khmelnytsky NPP;
- Unit 2 of the Zaporizhzhia NPP.
- A number of projects to develop analytical justifications and
technical documentation for the implementation of automatic algorithm for
management of the primary-to-secondary side leaks
for:
- Units 3,4 of Zaporizhzhia NPP;
- Units 1,2 of Khmelnytsky NPP;
- Unit 3 of South Ukraine NPP.
- A number of projects
to develop or update the following NPP emergency documentation:
- Emergency operating
procedures for normal power operation (EOP RU) and emergency operating
procedures at shutdown reactor (EOPsr) for Rivne NPP Units 1 and 2;
- Emergency operating
procedures at Spent Fuel Pool (EOP
SFP) for
Rivne NPP Units 3 and 4;
- EOP RU for for Rivne NPP
Unit 4;
- EOP RU, EOPsr, EOP SFP for
Khmelnytsky NPP Units 1 and 2.
- A number of projects within the framework of activities on
commissioning the Centralized Spent Fuel Storage Facility (CSFSF) in
Ukraine:
- Development of the Procedure on Accounting and Control of Nuclear
Materials;
- Development of the Nuclear Materials Accounting System Database;
- Development of the NNEGC standard "Nuclear Fuel Management.
Technical Specifications for Spent Nuclear Fuel Shipment from Ukrainian
NPPs to the CSFSF";
- Development of typical procedure on organization and performance
of activities at power units (RNPP, KhNPP, SUNPP) during spent fuel
shipment to CSFSF.
- Preparing set of documents for obtaining the necessary permissions
from the State Nuclear Regulatory Inspection of Ukraine for Commissioning
the Neutron Source Facility of the National Science Center “Kharkov
Institute of Physics and Technology”, that included:
- Selected operating
documents/procedures;
- Technical specifications
for safe operation of the facility;
- Technical specifications
and test programmes for selected systems/components;
- Concept for
decommissioning of the nuclear facility.
- Detailed analysis of primary circuit makeup at blackout and/or loss
of ultimate heat sink for Rivne NPP Unit 1.
- Evaluation of in-vessel debris localization strategy for V-213
reactor facilities.
- Substantiation of critical safety functions for accident
instructions related to implementation of new fuel (ТВС-WR) for unit 5 Zaporyzhzhya NPP.
- Scientific and technical support for the development of a
regulatory document of NNEGC Energoatom: Technical Requirements for the
Installation and Safe Operation of Equipment and Pipelines of Nuclear
Facilities.
- Calculations of specific activity and volume
of water generated due to beyond design basis accidents. Radiation risk
assessment in case of BDBA.
- Performing selected thermal-hydraulic calculations
as part of the development of the concept for protecting SGs from
overpressure in the second circuit of VVER-1000/V-320 NPPs based on the
accumulated operating experience and taking into account modern approaches
based on passive devices (such as direct-acting relief valves).
- Calculation of the residual energy release of new modifications of
Westinghouse fuel assemblies with a retention time from 1 year to 55 years.
- Development of the NNEGC standard "Spent Nuclear Fuel
Management. Radiation characteristics and residual energy release of spent
VVER-440 fuel assemblies.
- Research, evaluation and feasibility study of advanced nuclear
technologies for the construction of new NPP units in Ukraine.
- Preparation of report to substantiate the seismic stability
classification of selected systems and elements of KhNPP Unit 2 in
accordance with the “Requirements for Seismic Design and Seismic Safety
Assessment of Nuclear Power Plants” НП 306.2.208-2016.
- Development of Preliminary Safety Analysis Report on implementation
of automatic
algorithm for management of the primary-to-secondary side leaks. Khmelnytskа
NPP Unit 1.
- Pre-design investigation
for construction of the Unit 5 at the Rivne NPP site. Development of
recommendations on selection of the reactor type in accordance with IAEA
methodologies.
- Analytical substantiation (confirmation) of the efficiency of using
non-design equipment for RNPP Units 1 and 2.
- Study of the peculiarities of applying correlations of the DКB “Hydropress” for determining the safety factor
to the critical heat flux during the periodic safety reassessment of units with Westinghouse
Company nuclear fuel.
International
projects in which the company participated are
presented below as at the mid-2025:
- “Peer-review of safety substantiation documentation related to
enhanced fuel cycle and safe operation with power uprate up to 3120 MW for
units 5 and 6 of Kozloduy NPP” – within the framework of Kozloduy NPP project,
Bulgaria;
- “Specification of waste forms to allow safe treatment, storage and
disposal of problematic radioactive wastes held at Ukrainian nuclear
energy facilities” – INSC project U4.01/14A.
- “Reduction of radiological consequences of design basis and design
extension accidents” R2CA – Horizon 2020 Euratom project.
- “Structural materials research for safe long term operation of LWR
NPPs” STRUMAT-LTO – Horizon 2020 Euratom project.
- “Assessment of providing heating to the plant (ZNPP) and the
satellite town, Energodar, without bringing reactors to criticality” –
project with Argonne National Laboratory
(ANL), USA.
At present time company participates in the
following activities:
- Preparation of periodical safety analysis reports for several
Ukrainian NPP Units related to lifetime extension above 30 years;
- Implementation of safety upgrades at NPPs;
- Updating of emergency operating procedures and accident management
guidelines for Ukrainian NPPs.
- International projects:
- Support to the Nuclear Regulator in South Africa – INSC project;
- Ensuring Assessment of Safety Innovations for Small Module Reactors (EASI-SMR) – Horizon Europa Euratom project.