August 2017

Eurosafe NEWS

MTA Centre for Energy Research (MTA EK) is an academic research organization in Hungary.

MTA EK performs safety assessments for the Hungarian Atomic Energy Authority in various fields of nuclear safety, radiation protection, non-proliferation and to some extent also of waste management.

The competitiveness of the present and future nuclear reactors with other energy producing technologies depends on the well based but not too conservative definition of the safety margins for normal operation and incidental conditions. With this aim, the development of multi-physics modeling of physical phenomena in nuclear reactors is a priority area.

Performing worldwide acknowledged experiments on research facilities (ZR-6 critical assembly, PMK-2 thermo-hydraulic facility, CODEX fuel behaviour and severe accident facility) provided the basis of disciplinary knowledge. Experts of MTA EK have a global vision on safety matters due to their extensive participation in the activities of OECD NEA, IAEA and EURATOM.

MTA EK is the operator of the 10 MW Budapest Research Reactor. Safety of this reactor was developed as a leading edge of research reactor safety due to the experts of MTA EK. The selected articles for this issue present a brief overview of activities in nuclear safety and a review of recent developments in the Centre.

Virtual reality and innovative control design

The instrumentation and control devices in a nuclear power plant are designed according to the highest safety requirements and the technology is continuously developed. Safe operation of the plant is not the goal, but a requirement for developers.

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Safety assessment and code validation for VVER-440 reactors

MTA EK operates several experimental facilities, in order to support code validation and safety assessment activities. The article presents the experimental capabilities of the thermal-hydraulic laboratory.

Reactor core design for VVER-440 reactors

Own developed codes like KARATE, KIKO3D and FUROM codes are used widely for the core design and safety investigations of the four VVER-440 units of Paks NPP.

Eurosafe 2017
 

Measurement of Chloride Contamination on Stainless Steel Surface

Chloride trace contamination on stainless steel surface can initialize localized corrosion especially at high temperature. Polluted air, residue of consumable materials, and bead of perspiration can chloride contamination on the structural materials.

In-Situ Investigation of VVER Steam Generator Heat Transfer Tubes by XRF Technique

Steam generators of VVER 440 type nuclear power plant are not interchangeable economically. Knowledge of the amount of possible contaminates on the tubes’ surface is necessary to evaluate the corrosion risk.

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