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质子交换膜燃料电池的多尺度传热传质 被引量:2

Multi-scale heat transfer and mass transfer of proton exchange membrane fuel cell
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摘要 介绍了目前质子交换膜燃料电池(PEMFC)在膜、电极、单电池、电堆或系统等四个结构尺度上的传热传质过程研究;主要讨论了PEMFC内的多组分传输、膜内水管理和多孔电极内的传热、传质过程;认为建立在孔尺度水平的研究方法是深入探讨电池内多孔材料微结构传热传质的有效途径;多维、多尺度模型的建立及其模拟计算能准确反映PEMFC内部的传递过程机理,为进一步优化电池结构和操作条件提供有价值的参考。 The state-of-art of multi-scale heat and mass transfer for proton exchange membrane fuel cell(PEMFC),including proton exchange membrane,electrode,unit cell,stack and system levels were reviewed.Detailed multi-component transport,water management in membranes and heat and mass transfer within the porous electrodes were described emphatically.It is a powerful way to investigate the fundamental heat and mass transfer processes in porous media at the pore scale level of a fuel cell.The development of multi-dimensional multi-scale model can be exactly understand the mechanism of transport phenomena occurring in PEMFC and referable for the optimization of structure and operating condition.
出处 《能源研究与利用》 2006年第1期29-33,共5页 Energy Research & Utilization
关键词 质子交换膜燃料电池 多尺度 传热传质 水管理 proton exchange membrane fuel cell multi-scale heat and mass transfer water management
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