International Benchmark for Coupled Codes and Uncertainty Analysis in Modelling:Switching-off of one of the Four Operating Main Circulation Pumps at Nominal Reactor Power at NPP Kalinin Unit 3
18th Symposium of AER on VVER Reactor Physics and Reactor Safety (2008, Eger, Hungary)
Reactor Dynamics, Safety Analysis
Abstract
The paper briefly describes the Specification of an international NEA/OECD benchmark based on measured plant data.
During the commissioning tests for nominal power at NPP Kalinin Unit #3 a lot of measurements of neutron and thermo-hydraulic parameters have been carried out in the reactor pressure vessel, primary and the secondary circuits. One of the measured data sets for the transient ?Switching-off of one Main Circulation Pump (MCP) at nominal power? has been chosen to be applied for validation of coupled thermal-hydraulic and neutron-kinetic system codes and additionally for performing of uncertainty analyses as a part of the NEA/OECD Uncertainty Analysis in Modeling (UAM) Benchmark.
The benchmark is opened for all countries and institutions. The experimental data and the final specification with the cross section libraries will be provided to the participants from NEA/OECD only after official declaration of real participation in the benchmark and delivery of the simulated results of the transient for comparison.
INTRODUCTION