论文部分内容阅读
采用CFX-Fluent对国际原子能机构(IAEA)提出的10 MW材料测试堆(MTR)典型栅元建模分析,研究板型燃料元件横向上均匀分布、中心高分布和中心低分布3种不同功率分布下的燃料及冷却剂温度分布特征。研究结果表明,由于燃料端部结构材料不发热和横向导热的存在,流道的端部存在冷芯;在核设计、热工水力设计和安全分析中应考虑燃料功率分布的横向分区及导热效应。
CFX-Fluent was used to analyze the typical cell modeling of a 10 MW material test reactor (MTR) proposed by the International Atomic Energy Agency (IAEA). Three types of power distributions were uniformly distributed in the horizontal direction, distributed in the center and distributed in the center, Under the fuel and coolant temperature distribution characteristics. The results show that there is a cold core in the end of the flow channel due to the non-heating and transverse thermal conductivity of the fuel end structure material. The lateral division of the fuel power distribution and the thermal conductivity should be considered in the nuclear design, thermal hydraulic design and safety analysis .