HTR-10堆芯氧化模拟

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Simulation of Oxidation in HTR-10 Core

Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China

摘要: 对10 MW高温气冷堆(HTR-10)的堆芯模型进行简化,研究燃料元件在正常运行工况下的氧化情况,包括水蒸汽氧化及水蒸汽和氧气的共同氧化情况。结果表明,在燃料元件平均驻留期内石墨材料的水蒸汽腐蚀比较均匀,且主要发生在温度较高的底部;而氧气和水蒸汽对石墨材料的氧化则比较剧烈,底层燃料元件的石墨材料表面被腐蚀掉。
- 高温气冷堆 /
- 石墨 /
- 氧化 /
- 模拟
Abstract: The oxidation behavior of graphite matrix in fuel element was investigated based on the reasonable simplification to the HTR-10 core.The gasification by steam and the combined effect by steam and oxygen were studied independently.The results showed that the gasification of fuel graphite matrix by steam was uniform and mainly occurred at the bottom where the temperature was high in the mean residency time of fuel element,while the corrosion by oxygen and steam was violent and the surface of graphite matrix was removed.
- HTR /
- Graphite /
- Oxidation /
- Simulation