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为使磁约束聚变堆实现能量放大与氚自持,在其等离子体区周围设置次临界包层和产氚包层。采用天然铀合金燃料、轻水作冷却剂兼慢化剂,内嵌压力管式的次临界包层设计方案,通过对包层物理性能、结构概念设计、热工水力性能和安全分析,表明该方案可将聚变能量放大10倍以上,氚增殖比大于1.15,具有天然的临界安全性和良好余热安全性能。立足于近中期可利用的聚变技术,力争实现聚变能源的提前商用,为我国能源可持续发展提供一种有竞争力的技术选项。
In order to make the magnetic confinement fusion reactor achieve energy amplification and tritium self-sustaining, a subcritical cladding layer and a tritium cladding layer are disposed around the plasma region. Using natural uranium alloy fuel and light water as coolant and moderator, pressure pipe type sub-critical cladding design is adopted. Through the physical properties of the cladding, the conceptual design of the structure, thermal-hydraulic properties and safety analysis, The program can amplify the fusion energy by more than 10 times and the tritium multiplication ratio by more than 1.15, with natural critical safety and good afterheat safety performance. Based on the near and medium-term available fusion technology, and strive to achieve early commercial fusion energy for China’s energy sustainable development provides a competitive technology options.