Research on Temperature Rise of Type IV Composite Hydrogen Storage Cylinders in Hydrogen Fast-Filling Process

Jiepu Li, Junhao Liu, Baodi Zhao, Dongyu Wang (), Shufen Guo, Jitian Song and Xiang Li ()
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Jiepu Li: China Special Equipment Inspection and Research Institute, Beijing 100029, China
Junhao Liu: China Special Equipment Inspection and Research Institute, Beijing 100029, China
Baodi Zhao: China Special Equipment Inspection and Research Institute, Beijing 100029, China
Dongyu Wang: FTXT Energy Technology Co., Ltd., Shanghai 201804, China
Shufen Guo: FTXT Energy Technology Co., Ltd., Shanghai 201804, China
Jitian Song: College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300222, China
Xiang Li: China Special Equipment Inspection and Research Institute, Beijing 100029, China

Energies, 2023, vol. 16, issue 6, 1-21

Abstract: The internal pressure and temperature of type IV on-board hydrogen storage cylinders constantly change during the hydrogen fast-filling process. In this work, a 2D axisymmetric computational fluid dynamics (CFD) model is established to study the temperature rise of hydrogen storage cylinders during the fast-filling process. The hydrogen filling rate, ambient temperature, volume, and hydrogen inlet temperature were investigated to evaluate their effects on temperature rise inside the cylinders. The effects of the inlet pressure rise and pre-cooling patterns on the temperature rise of large-volume type IV hydrogen storage cylinders are analyzed, and the optimal filling strategy is determined. The research results show that a greater filling rate causes a higher hydrogen temperature rise at the end. The ambient temperature increases linearly with the maximum hydrogen temperature and decreases linearly with the state of charge (SOC). As the volume increases, the temperature rise of the cylinder increases. Reducing the inlet hydrogen temperature helps control the temperature rise, and the hydrogen inlet pre-cooling temperature required for large-volume cylinders is lower. If the filling time remains unchanged, a high pressure rise rate should be avoided, and a linear pressure rise pattern is optimal. Reducing the initial cooling energy is key to optimizing the filling strategy.

Keywords: hydrogen storage cylinder; temperature rise; fast-filling; numerical simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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