70 MPaⅢ型车载储氢气瓶充氢过程的热力学响应特性模拟

Acta Energiae Solaris Sinica(2022)

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Abstract
大容量高压车载储氢气瓶充氢过程的热力学响应特性是氢燃料电池汽车氢气安全充注亟需解决的关键问题.采用CFD模型,对70 MPaⅢ型车载储氢气瓶在不同长径比、充氢速率、气瓶初始压力、气源温度条件下充氢过程的热力学响应特性进行模拟.结果表明,在高压下氢气不可视为理想气体;重力对充氢过程的影响不能忽略;容积100 L储氢气瓶的最佳长径比为3.55;气源温度对充氢过程的影响最为显著,其次是气瓶初始压力与充氢速率,与热力学分析获得的结论类似.
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