55全长棒束非均匀加热管设计

Design of Non-uniform Heating tube in 5×5 Full-scale Bundle

介绍了全长棒束非均匀加热临界热流密度实验研究用非均匀加热管的设计原则和设计方法,按照这一设计原则和设计方法,设计了55全长棒束非均匀加热管。非均匀加热管的设计过程实际上是在满足实验设备要求、实验技术要求、加工条件及焊接技术等诸多限制条件下的一个优化设计过程。最终的设计结果既要能满足实验要求,又可以在工艺上实现。依据该设计原则设计的55全长棒束非均匀加热管已成功应用于高性能燃料组件临界热流密度实验研究。

A general design principle and design method of non-uniform heating tube used in the critical heat flux (CHF) experiment with axial non-uniform heat flux distribution in full-scale bundle was introduced in this paper. Non-uniform heating tube in 5×5 full-scale bundle was designed according to this design principle and method. In fact the design of non-uniform heating tube is an optimizing design process considering various conditions such as the demand of power system, experiment technology, fabrication ability and welding technology. The final design result shall meet the needs of experiment as well as technological requirements. The non-uniform heating tube in 5×5 full-scale bundle according to this design principle has applied successfully in the experiment on CHF of fuel assembly.