文献类型：期刊文献

英文题名：Thermal behavior analysis during the refueling process of Cryo-compressed hydrogen storage vessels

作者：Wang, Yang[1];Wang, Hao[1];Xiao, Zhengyan[1];Yao, Nengzhi[1];Wang, Xingsheng[2];Wang, Xuesheng[1]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China;[2]China Special Equipment Inspect & Res Inst, Beijing 100029, Peoples R China

年份：2025

卷号：129

外文期刊名：JOURNAL OF ENERGY STORAGE

收录：;EI(收录号：20252318548781);WOS:【SCI-EXPANDED(收录号:WOS:001506873300001)】；

语种：英文

外文关键词：Cryo-compressed condition; Hydrogen refueling; Thermal analysis; Computational fluid dynamics

摘要：Thermal behavior during hydrogen refueling is crucial for efficient hydrogen use. However, as an emerging technology, there is still no widely accepted design standard for Cryo-compressed hydrogen (CcH2) filling process. To enhance the safety and refueling efficiency of CcH2 vessels, an analytical study is being conducted on the refueling process under varying pre-cooling temperatures, initial pressures, and refueling rates. This study delves deeply into the phenomenon of temperature stratification that may occur during the refueling of these vessels. The findings indicate that higher initial pressures and lower refueling rates, while mitigating temperature rise during refueling, also intensify the stratification of temperatures within the vessel. Depending on the dominant influencing factors, the hydrogen within the vessel is categorized into a backflow-dominated region and a buoyancy-dominated region. The extent of these regions is determined by the relative strength of the inlet hydrogen flow disturbance compared to buoyancy; the smaller the buoyancy and the stronger the disturbance, the larger the backflow-dominated region. The temperature distribution varies between regions, with temperatures in the backflow-dominated decreasing progressively in the direction of flow, and temperatures in the buoyancy-dominated region decreasing along the gravitational vector. This research provides valuable insights into the development of CcH2 refueling technology and may potentially assist in the formulation of related standards.