新型燃料组件CANFLEX在秦山三期重水堆中的应用研究

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Study of the Application of A New Fuel Assembly CANFLEX in QinShan Phase Ⅲ Heavy Water Reactor

摘要: 介绍了CANDU堆新型燃料组件CANFLEX的特点,分析了其物理性能及热工水力特性,并对在秦山三期CANDU-6堆中应用CANFLEX组件的可行性进行了研究。结果表明,CANFLEX组件通过改进热工水力特性,提高了反应堆安全裕度。在CANDU-6堆中应用CANFLEX组件替代目前的NU-37组件不会影响堆芯功率分布和峰值,功率波动幅度变化也很小。由此证明,在秦山三期CANDU-6堆中应用CANFLEX组件是安全可行的,并具有重大经济效益。
- CANDU堆 /
- CANFLEX /
- 燃料组件 /
- 燃料循环
Abstract: In this paper the new fuel assembly CANFLEX for CANDU reactor is introduced. The physical performances and thermal-hydraulic characteristics of assembly and the feasibility of its application in CANDU-6 reactor of QinShan PhaseⅢ are studied. Calculations demonstrate that the margin of reactor safety has been increased by the improvement of thermal-hydraulic characteristics. Replacing the NU-37 assembly by CANFLEX in CANDU-6 reactor will not have influence on the in-core power distribution and peaking power and the power fluctuation as well. It is proved that the application of new CANFLEX assembly in CANDU reactor of QinShan Phase Ⅲ is safe and feasible with significant economy benefit.
- CANDU reactor /
- CANFLEX /
- Fuel assembly /
- Fuel cycle