Pressure build-up characteristics experimental data during a water jet injection into a molten lead-bismuth eutectic pool in the PMCI facility

To understand the pressure build-up characteristics of water jet injection into a molten Lead-Bismuth-Eutectic (LBE) pool, which is a key phenomenon during a Steam Generator Tube Rupture (SGTR) accident of lead-cooled fast reactors, a seris of experiments have been conducted by injecting water jet into a molten LBE pool at Sun Yat-sen University from 2022 to 2023. To clearify the influence of each experimental parameter on pressure build-up characteristics, a wide range of parameters was employed in the experiments, including LBE temperature, water subcooling, injection pressure, injection time, and nozzle diameter.The interaction vessel in which the LBE-water interaction occurs is a stainless steel cylindrical container with an inner diameter of 250 mm, a height of 750 mm, and a design pressure of 40 MPa. Many thermocouples and sensors are installed on the interaction vessel wall to obtain the temperature and pressure trends of the melt pool and cover gas.This data set includes the figures as well as the original data for make these figures:Fig.2: Boiling mode predicted according to above thermal criterion for each experimental case;Fig. 3, 4, 9: Temperature and pressure trends in the experimental cases;Fig. 5-8, 10, 11: Influence of each experimental paramter and interaction mode on pressure build-up characteristics;Fig. 12. Conversion efficiency during water-melt interaction.

为明确铅冷快堆蒸汽发生器管破裂（Steam Generator Tube Rupture, SGTR）事故中的关键现象——水射流注入熔融铅铋共晶（Lead-Bismuth-Eutectic, LBE）池时的压力累积特性，中山大学于2022至2023年间开展了一系列水射流注入熔融LBE池的实验。为厘清各实验参数对压力累积特性的影响规律，实验中设置了涵盖LBE温度、水过冷度、注入压力、注入时长及喷嘴直径在内的多组参数变量。开展水-熔池相互作用的反应容器为不锈钢圆柱形容器，其内直径250 mm，高度750 mm，设计压力达40 MPa。该容器壁面安装有大量热电偶与传感器，用于获取熔池及覆盖气体的温度与压力变化趋势。本数据集包含相关配图及生成配图的原始实验数据，具体如下：图2：各实验工况下基于上述热工准则预测的沸腾模式；图3、4、9：各实验工况下的温度与压力变化曲线；图5至8、10、11：各实验参数及相互作用模式对压力累积特性的影响规律；图12：水-熔池相互作用过程中的转换效率。