Research and Development of Radial Power Density Distribution Model for FUPAC
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摘要: 本文提出中子学-热力学部分因素分离方法(PPS),解决APS在模拟UO2-Gd2O3、IFBA等时存在的问题。为了使PPS方法更具工程实用性,对影响径向功率密度分布的因素进行敏感性分析,确定影响径向功率密度分布的关键参数,形成燃料棒热力学性能分析软件FUPAC中的径向功率密度分布模型。应用实测数据以及中子输运程序KYLIN-1精确计算结果,对本文提出的方法进行验证,结果表明:本文提出的方法具有较高精度,适用于UO2燃料、UO2-Gd2O3燃料以及IFBA等燃料棒的分析。
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关键词:
- 径向功率密度分布 /
- APS /
- PPS /
- UO2-Gd2O3燃料棒 /
- IFBA燃料棒
Abstract: This paper presents Part Parameters Separation（PPS） method. The method solves the APS problem effectively. To improve the practicability in using PPS method, the sensitivity affecting the radial power distribution is analyzed in this paper to determine the key parameters. On this basis, this paper establishes the radial power density distribution model, which is used in Fuel Rod Performance Analysis Code（FUPAC）. The model is validated with the measured data and the KYLIN-1 calculated results. The results show that the model has a high precision and a wide range of engineering practicality, and it is suitable for various types of fuels, such as UO2 fuel, UO2-Gd2O3 fuel and IFBA fuel.-
Key words:
- Radial power density distribution /
- APS /
- PPS /
- UO2-Gd2O3 fuel rod /
- IFBA fuel rod
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