首页> 外文会议>Seminar on Fission Gas Behaviour in Water Reactor Fuels Sep 26-29, 2000 Cadarache, France >DEVELOPMENT OF THE FISSION GAS BEHAVIOUR MODEL IN THE START-3 CODE AND ITS EXPERIMENTAL SUPPORT
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DEVELOPMENT OF THE FISSION GAS BEHAVIOUR MODEL IN THE START-3 CODE AND ITS EXPERIMENTAL SUPPORT

机译:START-3代码中裂变气体行为模型的开发及其实验支持

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This paper is devoted to the description of the recent developments of the fission gas behaviour model integrated with the START-3 fuel rod calculation code. The main enhancements of the classic model two-stage diffusion plus "knock-out and re-coil" providing the extension of its applicability are: 1. The model for low-temperature gas release and fuel structure evolution at ultra high burn-up. 2. The correlative model of high temperature and transient gas release due to "ductile" and "brittle" development of the fuel surface-to-volume ratio. Some further lines of development are also presented. In particular, a new model of the intragranular FG behaviour both under steady-state and transient conditions is outlined.
机译:本文致力于描述与START-3燃料棒计算代码集成的裂变气体行为模型的最新发展。经典模型两阶段扩散加上“敲除和重绕”的主要增强之处在于:1.适用于超高燃耗的低温气体释放和燃料结构演变模型。 2.由于燃料表面积体积比的“延性”和“脆性”发展而导致的高温和瞬态气体释放的相关模型。还提出了一些进一步的发展方向。特别是,概述了稳态和瞬态条件下的颗粒内FG行为的新模型。

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