氢动力船加注过程高压氢气泄漏数值模拟

孔祥宇; 胡始弘; 康济川; 闫发锁; 刘大辉; 董岩

doi:10.19912/j.0254-0096.tynxb.2022-1774

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (3) : 298-304. DOI: 10.19912/j.0254-0096.tynxb.2022-1774

氢动力船加注过程高压氢气泄漏数值模拟

孔祥宇¹, 胡始弘³, 康济川², 闫发锁², 刘大辉⁴, 董岩^1,2

作者信息 +

NUMERICAL SIMULATION OF HIGH PRESSURE HYDROGEN LEAKAGE DURING HYDROGEN POWERED SHIP REFUELING

Kong Xiangyu¹, Hu Shihong³, Kang Jichuan², Yan Fasuo², Liu Dahui⁴, Dong Yan^1,2

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文章历史 +

摘要

该文针对氢动力船加注过程中可能发生的高压氢气泄漏问题进行了数值模拟研究。首先,通过与已有实验结果对比,验证了CFD虚喷嘴模型和分层流动模型的有效性。其次,结合氢动力船实际加注场景,着重分析风速、障碍物对高压氢气扩散行为的影响。最后,利用半球扩散模型划分疏散区域,提高氢动力船加注过程的安全性。结果表明：分层流动模型与实验结果拟合性更好;高速的风可阻止氢气上浮,增加氢气泄漏距离,降低氢气浓度;泄漏源下游设置障碍物一定程度上缩短了易燃云在水平方向上的扩散距离。

Abstract

In this paper, a numerical study is conducted to investigate the possible high pressure hydrogen leakage during the refueling process of hydrogen powered vessels. The virtual nozzle model and flow partitioning model used in the CFD simulation for the leakage are verified by comparing with existing experimental results. The effects of wind speed and obstacles on the high-pressure hydrogen diffusion behavior were analyzed based on actual refueling scenarios of hydrogen powered vessels. The hemispherical diffusion model is used to determine the evacuation area to improve the safety during the refueling process. The results show that the performance of the flow partitioning model is better. The high-speed wind can prevent the hydrogen from floating, increase the hydrogen leakage distance and reduce the hydrogen concentration. The obstacles placed downstream of the leakage location can shorten the diffusion distance of flammable clouds in the horizontal direction to a certain extent.

导出引用

孔祥宇, 胡始弘, 康济川, 闫发锁, 刘大辉, 董岩. 氢动力船加注过程高压氢气泄漏数值模拟[J]. 太阳能学报. 2024, 45(3): 298-304 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1774

Kong Xiangyu, Hu Shihong, Kang Jichuan, Yan Fasuo, Liu Dahui, Dong Yan. NUMERICAL SIMULATION OF HIGH PRESSURE HYDROGEN LEAKAGE DURING HYDROGEN POWERED SHIP REFUELING[J]. Acta Energiae Solaris Sinica. 2024, 45(3): 298-304 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1774

中图分类号： TK91

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