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Validation of coupled neutronics/thermal hydraulics codes for VVER reactors

Objective

The proposal is aimed at the improvement of the validation of coupled neutronics / thermal hydraulic codes. Modern safety standards require a modelling of complex accident processes with significant interaction between thermal hydraulic system behaviour and space-dependent reactor kinetics. To perform the analysis of such events, thermal hydraulic system codes have to be coupled to three-dimensional core models. These coupled codes need to be validated against well-specified transient scenarios. The proposed work includes an extended validation of couple d codes against measurement data from NPPs, the development and application of an uncertainty analysis methodology for coupled codes and the validation of neutron kinetics models and nuclear cross section data libraries against kinetics.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

RESEARCH CENTER ROSSENDORF
Address

01314 Weissig - Dresden
Germany

Participants (8)

GESELLSCHAFT FUER ANLAGEN- UND REAKTORSICHERHEIT (GRS) MBH
Germany
Address
Forschungsgelaende
85739 Garching
INSTITUTE OF NUCLEAR RESEARCH AND NUCLEAR ENERGY - BULGARIAN ACADEMY OF SCIENCES
Bulgaria
Address
Blvd. Tzarigradsko Shosse 72
1784 Sofia
KFKI RESEARCH INSTITUTE FOR MATERIALS SCIENCE
Hungary
Address
Konkoly Thege 29-33
1525 Budapest
NUCLEAR RESEARCH INSTITUTE REZ A.S.
Czechia
Address

250 68 Rez - Praha
RUSSIAN RESEARCH CENTRE 'KURCHATOV INSTITUTE '
Russia
Address
Kurchatov Square 1
123182 Moscow
SLOVENSKE ELEKTRARNE, A.S.
Slovakia
Address

919 31 Jaslovske Bohunice
STATE SCIENTIFIC AND TECHNICAL CENTRE ON NUCLEAR AND RADIATION SAFETY
Ukraine
Address
Radgospna St. 35-37
03142 Kiev
VUJE TRNAVA INC - ENGINEERING, DESIGN AND RESEARCH ORGANISATION
Slovakia
Address
Okruzna 5
918 64 Trnava