This work focuses on the viability of using liquid metal bonded gap instead of the traditional helium (He)-gap through investigating its effects on the neutronic, thermal–hydraulic, and solid mechanics analyses. The shortcoming of using a He-gap is the high thermal resistance of helium, which causes overheating and much heat accumulation inside the fuel, and hence causes many problems with the fuel‘s solid mechanics behavior. To reduce both the heat accumulation and overheating inside the fuel material, LM boned gap was applied. The obtained results showed a slight difference in the various neutronic parameters, while in the thermal–hydraulic analysis, an excellent enhancement in the maximum fuel temperature happened, which reduced the heat accumulation in the fuel material. Also, in solid mechanics analysis, the enhancement that came from decreasing the fuel temperature decreased both the thermal expansion of the fuel and the von-Mises stress that acts on it.

这项工作的重点是通过研究液态金属键合间隙代替传统氦 (He) 间隙对中子、热-水力和固体力学分析的影响的可行性。使用氦气隙的缺点是氦气的高热阻，会导致燃料内部过热和大量热量积聚，从而导致燃料的固体力学行为出现许多问题。为了减少燃料材料内部的热量积聚和过热，应用了LM骨缝隙。得到的结果显示各种中子参数略有不同，而在热工水力分析中，燃料最高温度出现了极好的提高，从而减少了燃料材料中的热量积累。此外，在固体力学分析中，