摘要
采用向小型液氢可视杜瓦通入定量配比空气的方法,模拟液氢贮存系统受空气污染情况。通过高清摄像设备,得到了固空在液氢中沉积的视频资料。在升温过程中,测量逸出气体中的氧氮浓度,根据不同温度下所测的浓度值绘制氧氮在液氢贮存系统的升温曲线图,从而可得固空中氧氮的分布。
The storage system of liquid hydrogen polluted by air was simulated by feeding mixed air into a quartz glass dewar which contained liquid hydrogen in experiments. The video data of air solidification in liquid hydrogen were gotten by high definition camera. The variation of oxygen and nitrogen concentration in escaped gas was obtained during the temperature-rise process. The distribution of oxygen and nitrogen in solid air was gotten by corresponding heating curve which was drawn on the basis of experimental data.
出处
《低温工程》
CAS
CSCD
北大核心
2015年第1期13-16,共4页
Cryogenics
基金
航天低温推进剂技术国家重点实验室课题(项目编号2011ZD312)
关键词
液氢
固空
沉积
危险性
liquid hydrogen
solid air
sedimentary
hazards
