| 弥散型核燃料热导率计算模型研究 |
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| 引用本文： | 任啟森,廖业宏,陈蒙腾,张永栋,谢亦然,刘 彤,刘伟强.弥散型核燃料热导率计算模型研究[J].核动力工程,2021,41(5):40-43. |
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| 作者姓名： | 任啟森 廖业宏 陈蒙腾 张永栋 谢亦然 刘 彤 刘伟强 |
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| 摘 要： |
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| 关 键 词： | 事故容错 弥散型燃料 热导率 计算模型 |
Study on Thermal Conductivity Model of Dispersion Fuel |
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| Ren Qisen,Liao Yehong,Chen Mengteng,Zhang Yongdong,Xie Yiran,Liu Tong,Liu Weiqiang.Study on Thermal Conductivity Model of Dispersion Fuel[J].Nuclear Power Engineering,2021,41(5):40-43. |
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| Authors: | Ren Qisen Liao Yehong Chen Mengteng Zhang Yongdong Xie Yiran Liu Tong Liu Weiqiang |
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| Abstract: | The effective thermal conductivity (ETC) of dispersion fuels plays an important role in nuclear reactor safety analysis and fuel performance evaluation. In this study, based on the theory of porous body, considering the relativity of dispersion particle distributions, an ETC model of dispersion fuels was proposed and validated. The effect of porosity, fuel volume fraction and fuel-matrix thermal conductivity ratio on the ETC were investigated. The results show that the ETC decreases along with the increasing of fuel volume fraction and porosity; the higher the fuel-matrix thermal conductivity ratio is, the less the effect of fuel volume fraction on the ETC of dispersion fuel is. |
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| Keywords: | Accident tolerance Dispersion fuel Thermal conductivity Calculation model |
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