Session: MF-02-06 Materials for Hydrogen Service (Joint with CS-02 and HT-07) - Hydrogen Exposure Effects

Paper Number: 107131

107131 - Prediction of Dormancy Time of Cryo-Compressed Hydrogen Tank by Considering Dynamic Thermal Boundary 

  Hydrogen energy has the characteristics of high efficiency and cleanness, which is an important object of the current national energy strategy development. More and more domestic and foreign scholars have begun to carry out research on the preparation, storage, transportation and application of hydrogen. Among them, storage is an important factor to hydrogen energy applications. At present, hydrogen storage modes include compressed hydrogen storage, cryogenic hydrogen storage, and cryo-compressed hydrogen storage. Cryo-compressed hydrogen storage has become a very promising hydrogen storage mode with its advantages of high energy storage density, long dormancy and high safety, and has gradually attracted the attention of researchers all over the world. This paper focused on the dormancy law of cryo-compressed hydrogen storage vessels, and explored the variation law of dormancy of cryo-compressed hydrogen under different initial temperatures and pressures. Based on the saturated homogeneous model, a modified model under dynamic thermal boundary was proposed. And a numerical analysis model was established using Fluent to verify the effectiveness of the modified model. Finally, a theoretical model for predicting the dormancy of cryo-compressed hydrogen storage vessels was formed. Based on the modified model, the dormancy of the cryo-compressed hydrogen under initial temperature, pressure and other conditions was discussed.

Presenting Author: Yutong Yuan Zhejiang University

Presenting Author Biography: Yutong Yuan is a graduate student at Zhejiang University. The main research direction is the dormancy law of cryo-compressed hydrogen tank.

Authors:

Yutong Yuan Zhejiang University
Zhoutian Ge Zhejiang University
Jianfeng Shi Zhejiang University