Experimental Study of Narrow Pulse Effects onthe Behavior of High Burnup Fuel Rods with Zr-1%Nb Cladding and UO 2 Fuel (VVER Type) under Reactivity-Initiated Accident Conditions: Test Conditions andResults (NUREG/IA-0213, Volume 2, IRSN/DPAM2005-275, NSI RRC KI-3230)

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Publication Information

Date Published: March 2006

Prepared by:
L. Yegorova, K. Lioutov, N. Jouravkova
Nuclear Safety Institute of Russian Research Centre, "Kurchatov Institute"
Kurchatov Square 1
Moscow 123182, Russian Federation

O. Nechaeva, A. Salatov
A.A. Bochvar All-Russian Research Institute of Inorganic Materials
Rogov Street 5
Moscow 123182, Russian Federation

V. Smirnov, A. Goryachev
State Research Centre, "Research Institute of Atomic Reactors"
Dimitrovgrad 433510, Russian Federation

V. Ustinenko, I. Smirnov
Russian Federal Nuclear Centre, "All-Russian Research Institute of Experimental Physics"
Sarov 607200, Russian Federation

Prepared for:
U.S. Nuclear Regulatory Commission (United States)
Institute for Radiological Protection and Nuclear Safety (France)
Joint Stock Company "TVEL" (Russian Federation)

Published by:
Division of Systems Analysis and Regulatory Effectiveness
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

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Abstract

This volume of the report contains a detailed description of calculation and test results obtained in the fast-pulse-graphite-reactor (BIGR) tests of twelve fuel rods refabricated from the VVER-440 and VVER-1000 high burnup fuel elements (50, 60 MW d/kg U).

The BIGR data base includes the following types of fuel rod characterization:

• material and geometrical parameters of VVER-440 and VVER-1000 commercial fuel elements before the base irradiation in the nuclear power plant (NPP);
• parameters of fuel cycles and characteristics of commercial fuel elements after the base irradiation;
• characteristics of twelve refabricated fuel rods before the BIGR pulse tests;
• parameters of the BIGR power pulses;
• characteristics of refabricated fuel rods during and after the BIGR tests.