液氙加注过程中贮箱充填率影响因素分析

液氙在加注过程中可能会出现相变进而降低贮箱的充填率，因此需要了解贮箱充填率的影响因素。采用零维集总参数模型对液氙加注系统进行建模和仿真。基于AMESim计算液氮无排气加注过程中贮箱的充填率，其与文献中的实验结果接近。同时，基于AMESim搭建液氙加注系统，计算不同入口过冷度、入口压强、壁面温度和热流量条件下贮箱的充填率。结果表明，在相同加注时间条件下，提升入口过冷度、增加入口压强可以提升贮箱的充填率，而管路和贮箱受热会降低贮箱的充填率。 

Analysis of Influencing Factors of Tank Filling Ratio in Liquid Xenon Refueling Process

Liquid xenon has low temperature, low latent heat of vaporization and high dynamic viscosity. Due to depressurization or heating, liquid xenon is prone to phase change, forming gas-liquid two-phase flow in the pipeline and the tank, thus reducing the filling ratio of the tank. Therefore, it is necessary to understand the influence factors of the filling ratio of the tank during the refueling process. The zero dimensional lumped parameter model is used to model and simulate the liquid xenon refueling system. Based on AMESim, the filling ratio of the tank in the process of filling liquid nitrogen with no-vent filling is calculated, which is close to the previous experimental results. A liquid xenon refueling system was built based on AMESim, and the filling ratio of the tank was calculated under different inlet subcooling, inlet pressure, pipeline diameter, pipeline wall temperature and tank heat flow. Results show that under the same filling time, increasing the inlet subcooling and the inlet pressure can both improve the filling ratio of the tank, while heating of the pipeline and tank will reduce the filling ratio of the tank.