Status of the development of a fully integrated code system for the simulation of high temperature reactor cores

被引：2

作者：

Kasselmann, Stefan ^{[1
]}

Druska, Claudia ^{[1
]}

Herber, Stefan ^{[1
,2
]}

Juehe, Stephan ^{[2
]}

Keller, Florian ^{[1
]}

Lambertz, Daniela ^{[1
]}

Li, Jingjing ^{[1
]}

Scholthaus, Sarah ^{[1
]}

Shi, Dunfu ^{[1
]}

Xhonneux, Andre ^{[1
,2
]}

Allelein, Hans-Josef ^{[1
,2
]}

机构：

[1] Forschungszentrum Julich, Nucl Waste Management & Reactor Safety IEK 6, Inst Energy & Climate Res, D-52425 Julich, Germany

[2] Rhein Westfal TH Aachen, Lehrstuhl Reaktorsicherheit & Tech, D-52062 Aachen, Germany

来源：

NUCLEAR ENGINEERING AND DESIGN | 2014年 / 271卷

关键词：

Object oriented programming - High temperature gas reactors - Isotopes - Gas cooled reactors - Stochastic models - High temperature reactors - Stochastic systems - Codes (symbols) - Graph theory;

D O I：

10.1016/j.nucengdes.2013.11.059

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 HTR code package (HCP) is a new code system, which couples a variety of stand-alone codes for the simulation of different aspects of HTR. HCP will allow the steady-state and transient operating conditions of a 3D reactor core to be simulated including new features such as spatially resolved fission product release calculations or production and transport of graphite dust. For this code the latest programming techniques and standards are applied. As a first step an object-oriented data model was developed which features a high level of readability because it is based on problem-specific data types like Nuclide, Reaction, ReactionHandler, CrossSectionSet, etc. Those classes help to encapsulate and therefore hide specific implementations, which are not relevant with respect to physics. HCP will make use of one consistent data library for which an automatic generation tool was developed. The new data library consists of decay information, cross sections, fission yields, scattering matrices etc. for all available nuclides (e.g. ENDF/B-VII.1). The data can be stored in different formats such as binary, ASCII or XML. The new burn up code TNT (Topological Nuclide Transmutation) applies graph theory to represent nuclide chains and to minimize the calculation effort when solving the burn up equations. New features are the use of energy-dependent fission yields or the calculation of thermal power for decay, fission and capture reactions. With STACY (source term analysis code system) the fission product release for steady state as well as accident scenarios can be simulated for each fuel batch. For a full-core release calculation several thousand fuel elements are tracked while passing through the core. This models the stochastic behavior of a pebble bed in a realistic manner. In this paper we report on the current status of the HCP and present first results, which prove the applicability of the selected approach. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：341 / 347

页数：7

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