氦氙混合气体冷却反应堆单通道程序开发

摘要

闭式布雷顿循环在大功率空间核电源方面具有广阔的应用前景。采用氦氙混合气体作循环工质可提高布雷顿循环的性能，且由于其良好的换热能力，可直接用作反应堆的冷却剂。在概念设计阶段，为适应频繁改动反应堆设计的需要，开发了氦氙混合气体冷却反应堆单通道分析程序。其中氦氙混合气体的物性参数采用理论方法预测。程序采用FORTRAN 90语言编写，并集成画图功能。程序可用于计算环形流道和圆管流道，通过对同一个算例的单通道计算结果与FL U EN T计算结果或实验数据进行对比，初步验证了程序的正确性。%The closed‐Brayton cycle has extensive application prospects in high‐power space nuclear power . The performance of Brayton cycle could be improved with the helium and xenon mixture as cycle fluid and it could be directly used as the coolant of a reactor due to its good heat transfer performance .In concept design stage ,the single channel program of helium and xenon mixture cooled reactor was developed with the need of frequent modification of reactor design . The properties of helium and xenon mixture were predicted with theoretical methods . The program was written in FORTRAN 90 with the plotting function integrated .This program can be used to calcu‐late annular channel and circular channel .The results calculated by single channel were compared with those of FLUENT or experimental data for the same example ,and it is verified that this program is correct .