Numerical Simulation and Optimization of Rapid Filling of High-Pressure Hydrogen Storage Cylinder

Longchang Xue, Jiajia Deng, Xueren Wang, Zaizhou Wang and Bin Liu
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Longchang Xue: CRRC Academy, F9, Building 5, Nuode Centre II, E Qichebowuguan Road Fengtai, Beijing 100070, China
Jiajia Deng: School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
Xueren Wang: School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
Zaizhou Wang: College of Engineering, Hebei Normal University, Shijiazhuang 050010, China
Bin Liu: School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

Energies, 2022, vol. 15, issue 14, 1-16

Abstract: The fast charging process of high-pressure gas storage cylinders is accompanied by high temperature rise, which potentially induces the failure of solid materials inside the cylinders and the underfilling of the cylinders. A two-dimensional (2D) axisymmetric model simulated the charging process of hydrogen storage cylinders with a rated working pressure of 35 MPa and a volume of 150 L. During filling, the highest temperature rise inside the cylinder occurs at the bottom part of the cylinder, and the state of charge (SOC) is 46.4% after filling. This temperature rise can be reduced by precooling the injected hydrogen, and the highest SOC can reach 95.7% after injection. The SOC in the cylinder gradually increases with a decrease in the temperature of the hydrogen injection. The maximum SOC increase is 49.3%. For safety and the SOC exceeding 90%, the hydrogen gas should be precooled to below −10 °C, and the SOC could achieve more than 90.3%. The internal structure of the hydrogen cylinder was further optimized without a precooling condition. The selected length ratios were 25%, 50%, and 75%. Compared with the initial scheme, the SOC in the optimization scheme increased by 16%, 38.7%, and 40.1%.

Keywords: hydrogen storage bottle; temperature evolution; state of charge; injection pipeline (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: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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