列车低温液化氢储罐在各种振动条件下的滑动效应数值分析

IF 1.8 3区工程技术 Q3 PHYSICS, APPLIED

Cryogenics Pub Date : 2024-10-01 DOI:10.1016/j.cryogenics.2024.103961

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引用次数: 0

摘要

本研究通过应用列车振动测试标准中的固有频率和频率条件，研究了氢气荡对设计用于列车的液化氢储罐内部压力、温度和流体行为的影响。值得注意的是，它使用瞬态流体体积相变模型研究了对 BOG 生成的影响。在这里，模拟在 0、0.53、1.53 和 3 Hz 的振动频率下进行，振动频率是通过正弦波加速度确定的。结果表明，随着频率的升高，荡流也随之增加，从而导致储罐壁与氢气自由表面之间的热量传递更加强烈，BOG 生成量也随之增加。与 0 赫兹基线相比，在 0.53、1.53 和 3 赫兹时，BOG 生成量分别增加了 13%、44% 和 66%。

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Numerical analysis of sloshing effects in cryogenic liquefied-hydrogen storage tanks for trains under various vibration conditions

This study examines the effects of hydrogen sloshing on internal pressure, temperature, and fluid behavior liquefied-hydrogen storage tanks designed for train usage by applying the natural frequency and frequency conditions from train vibration test standards. Notably, it investigates the impact on BOG generation using a transient volume-of-fluid phase change model. Here, simulations were conducted at vibrations of 0, 0.53, 1.53, and 3 Hz, which were established using sine wave acceleration. The results demonstrated that sloshing increased with higher frequencies, thereby resulting in a more intense heat transfer between the wall of the tanks and free surface of hydrogen and an increase in the BOG generation. Compared to the 0 Hz baseline, BOG generation increased by 13, 44, and 66 % at 0.53, 1.53, and 3 Hz, respectively.

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来源期刊

Cryogenics 物理-热力学

CiteScore

3.80

自引率

9.50%

发文量

审稿时长

2.1 months

期刊介绍： Cryogenics is the world''s leading journal focusing on all aspects of cryoengineering and cryogenics. Papers published in Cryogenics cover a wide variety of subjects in low temperature engineering and research. Among the areas covered are: - Applications of superconductivity: magnets, electronics, devices - Superconductors and their properties - Properties of materials: metals, alloys, composites, polymers, insulations - New applications of cryogenic technology to processes, devices, machinery - Refrigeration and liquefaction technology - Thermodynamics - Fluid properties and fluid mechanics - Heat transfer - Thermometry and measurement science - Cryogenics in medicine - Cryoelectronics