Mathematical and physical model should be established to simulate and predict the process of ventless storage to guarantee the safety of storage and transportation. Based on semi-empirical model established by Russian scholars

heat leak was revised in this paper to better simulate the ventless storage process. The revised model was applied on a 2 m3 liquid nitrogen ventless storage experiment. The results of calculation and experiment were compared to validate the effectiveness of the heat leak revision. The result showed that the errors of the Russian model and the revised model were both negative. The absolute value of error was reduced after revision. Same working condition was also calculated with thermal stratification model of higher complexity. However

the revised Russian model still showed better performance in predicting this ventless storage process and was much easier to use in engineering situations.