Effects of some key-parameters on the thermal stratification in hydrogen tanks during the filling process

Melideo, Daniele; Baraldi, Daniele; Echevarria, N. De Miguel; Iborra, Beatriz Acosta

doi:10.1016/j.ijhydene.2019.03.187

Cited by 47 publications

(16 citation statements)

References 49 publications

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“…Subsequently, in Refs. [21,22] a k − ω shear stress transport (SST) model with a Γ − Θ model transitional turbulent-laminar model described by Langtry et Menter [23] was used to improve the capture of heterogeneities. These simulations captured the onset of thermal stratification but tended to be less reliable to quantify the stratification level.…”

Section: Contextmentioning

confidence: 99%

A computational fluid dynamic study of the filling of a gaseous hydrogen tank under two contrasted scenarios

Gonin

Horgue

Guibert

et al. 2022

International Journal of Hydrogen Energy

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Section: Contextmentioning

confidence: 99%

A computational fluid dynamic study of the filling of a gaseous hydrogen tank under two contrasted scenarios

Gonin

Horgue

Guibert

et al. 2022

International Journal of Hydrogen Energy

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“…[3] The initial temperature of hydrogen and the angle of the outlet of the intake pipe also affect the distribution of hydrogen temperature field inside the tank. [4] Further analysis of the precooling process of cryogenic compressed hydrogen storage tank can effectively ensure the control of precooling time, save time cost, and increase the safety of the process. According to the change of thermodynamic properties of the precooling process, the control strategy of precooling process is put forward effectively.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the factors influencing the precooling process of cryogenic compressed hydrogen storage tank

Jia

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Cryogenic compressed hydrogen has attracted much attention recently. Its volume and weight hydrogen storage density are relatively high, which can meet the long-distance driving demand of hydrogen fuel cell vehicles. It is considered as a very promising physical storage method. In the process of transportation, the precooling process of cryogenic compressed hydrogen storage tank is very important. It is necessary to establish a reasonable mathematical model, analyse the precooling process of the storage tank theoretically, and use the hydrodynamics software for numerical simulation to analyse the influencing factors of the precooling process. On the basis of theoretical analysis, this paper uses ANSYS FLUENT software to simulate the precooling process of intake pipe length, intake pipe diameter, length diameter ratio of storage tank, insulation performance of high vacuum multilayer insulation material, lining material, initial temperature of storage tank and hydrogen filling rate. By comparing the distribution of internal temperature field and enclosure temperature field as well as precooling time, the design suggestions of Cryogenic compressed hydrogen storage tank and hydrogenation suggestions are given.

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“…Recently, many scholars have studied the influence of temperature rise and pressure during the hydrogen injection process on high-pressure hydrogen storage cylinders through theoretical, experimental, and simulation methods. Further, a computational fluid dynamics (CFD) model has been established to study the principle of temperature rise [6,7]. Xiao et al studied the thermal effect generated during the hydrogen injection process of high-pressure hydrogen storage cylinders.…”

Section: Introductionmentioning

confidence: 99%

“…Y M represents the contribution of pulsating expansion in compressible turbulence to the total dissipation rate, and its calculation expression is shown in Equation (6).…”

mentioning

confidence: 99%

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

et al. 2022

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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%.

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Effects of some key-parameters on the thermal stratification in hydrogen tanks during the filling process

Cited by 47 publications

References 49 publications

A computational fluid dynamic study of the filling of a gaseous hydrogen tank under two contrasted scenarios

A computational fluid dynamic study of the filling of a gaseous hydrogen tank under two contrasted scenarios

Analysis of the factors influencing the precooling process of cryogenic compressed hydrogen storage tank

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

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