Study on Effect of Fuel Oxidation on Fission Product Diffusion Release
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摘要: 分析燃料氧化对裂变产物扩散释放的影响,得出结论:燃料氧化后,燃料中铀原子空位增多对裂变产物释放的影响要大于导热率降低后燃料温度上升带来的影响;裂变产物释放份额随氧铀比升高而增大,燃料棒线功率密度越高,效应越明显。Abstract: Effect of fuel oxidation on fission product diffusional release is analyzed, and it is concluded that the vacancy increase due to the fuel oxidation has greater effect on the enhanced fission product release than the temperature increase due to the degradation of fuel thermal conductivity. The fission product release fractions increase with the O/U ratio, and this phenomenon is more obvious as the linear heat rate increases.
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Key words:
- Fuel oxidation /
- Fission product /
- Diffusion release
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