Modelling effects and their impact on the results of ATHLET solutions of Exercise 1 of the VVER-1000 Coolant Transient Benchmark

被引：1
|
作者：
Langenbuch, S. [1 ]
Hadek, J.
Schmidt, K. -D.
Velkov, K.
机构：
[1] Gesell Anlagen & Reaktorsicherheit GRS mbH, Forschungsinst, D-85748 Garching, Germany
[2] Nucl Res Inst, CZ-25068 Rez, Czech Republic
来源：
PROGRESS IN NUCLEAR ENERGY | 2006年 / 48卷 / 08期
关键词：
ATHLET; VVER-1000; Coolant Transient Benchmark;
D O I：
10.1016/j.pnucene.2006.07.001
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The VVER-1000 Cool ant Transient Benchmark consists of two phases and refers to experimental data from the Kozloduy Unit 6 Nuclear Power Plant in Bulgaria. The paper describes the modelling features and their impact on the results of the Exercise 1, Phase I of the Benchmark obtained by two ATHLET user groups, namely GRS and NRI. The simulated transient is a main coolant pump (MCP) switching on in one loop at reduced power while three other MCPs are in operation. Particular attention is paid to the influence of the reactor vessel modelling and especially of the nodalization in the upper plenum. The comparison and discussion of the two simulation results confirm that the two solutions with the ATHLET system code achieve quite good system response of the plant transient. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：912 / 921
页数：10
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