压缩储氢系统的多区集总参数模型

来源 :第十五届全国氢能会议暨第7届两岸三地氢能研讨会 | 被引量 : 0次 | 上传用户:illusions1018
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  氢能是未来发展中有前景的新能源之一,可用于氢燃料电池电动汽车。氢燃料电池电动汽车常采用压缩储氢的方式来储存氢能。在快速压缩充气过程中,储氢罐工作压力可高达700bar,并且快速充气所引起的罐内高温会对储氢系统的性能产生很大影响,充气速率的快慢对罐内温度的影响很明显,此外,罐壁的热物性也会影响罐内的温度。本文基于Simulink建立了压缩储氢系统的多区域集总参数模型来模拟快速充气过程中罐内热力学以及传热过程,多区域集总参数模型相对于以往的单区域集总参数模型对储氢过程的模拟结果更精确,并且与已有的实验结果进行对比验证。在此基础上,进一步研究了充气速率、罐壁热容等参数对快速充气过程中罐内温度的影响。
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