HEAT TRANSFER IN A POROUS CATHODE OF FUEL CELLS

机译：燃料电池多孔阴极中的传热

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This paper has provided an innovative aspect in the heat transfer of fuel-cell related studies. A heat/mass coupled modeling approach is presented to predict the transport phenomena inside the porous electrode of a fuel cell. The energy equations based on the local thermal non-equilibrium (LTNE) is derived to resolve the temperature difference between the solid and fluid phases inside the porous electrode. The surface heat transfer is coupled with the species transports via a macroscopic electrochemical model on the reaction boundary. A general criterion for the local thermal non-equilibrium in porous electrodes is first proposed in terms of non-dimensional parameters of engineering importance. Then, the significance of local thermal non-equilibrium in a typical porous electrode is assessed. Furthermore, detailed distributions of the local temperature, local Nusselt number, species concentration, and electric current density inside the porous electrode of fuel cells are presented. Finally, the effect of LTNE parameters on the thermal-fluid behaviors in the porous electrode is investigated.

机译：本文为燃料电池的传热研究提供了一个创新的方面。提出了一种热/质耦合建模方法，以预测燃料电池多孔电极内部的传输现象。推导了基于局部热不平衡（LTNE）的能量方程，以解决多孔电极内部固相和液相之间的温差。表面传热通过反应边界上的宏观电化学模型与物质传输耦合。首先根据工程上重要的无量纲参数提出了多孔电极中局部热不平衡的一般判据。然后，评估了典型多孔电极中局部热不平衡的重要性。此外，给出了燃料电池的多孔电极内部的局部温度，局部Nusselt数，种类浓度和电流密度的详细分布。最后，研究了LTNE参数对多孔电极中热流体行为的影响。

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《American Society of Mechanical Engineers(ASME) Summer Heat Transfer Conference(HT2005); 20050717-22; San Francisco,CA(UA)》|2005年|P.37-45|共9页
会议地点 San FranciscoCA(UA)
作者
J. J. Hwang;
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作者单位

Research Center for Advanced Science and Technology, Mingdao University, Changhua 52345 TAIWAN;

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原文格式 PDF
正文语种 eng
中图分类热力工程理论;
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1. Mass transfer in porous systems, flooded in part with water, of gas diffusion and catalytic layers of the cathode of a fuel cell with a solid polymer electrolyte [J] . Baranov IE, Grigorev SA, Nikolaev II, Russian journal of electrochemistry . 2006,第12期

机译：多孔系统中的质量转移，部分被水淹没，气体扩散和带有固体聚合物电解质的燃料电池阴极的催化层
2. Corrigendum to 'Liquid water in cathode gas diffusion layers of PEM fuel cells: Identification of various pore filling regimes from pore network simulations.' [Int. J. Heat Mass Transfer 129 (2019) 1043-1056] [J] . Carrere P., Prat M. International Journal of Heat and Mass Transfer . 2019,第JULa期

机译：“ PEM燃料电池阴极气体扩散层中的液态水：从孔隙网络模拟中识别各种孔隙填充方式”的勘误。 [Int。 J.热传质129（2019）1043-1056]
3. Corrigendum to 'Liquid water in cathode gas diffusion layers of PEM fuel cells: Identification of various pore filling regimes from pore network simulations.' [Int. J. Heat Mass Transfer 129 (2019) 1043-1056] [J] . Carrere P., Prat M. International Journal of Heat and Mass Transfer . 2019,第Jula期

机译：PEM燃料电池阴极气体扩散层中的勘探为“液态水”：孔网络模拟中的各种孔隙填充制度的鉴定。 [int。 J.热传质129（2019）1043-1056]
4. HEAT TRANSFER IN A POROUS CATHODE OF FUEL CELLS [C] . J. J. Hwang, American Society of Mechanical Engineers(ASME) ASME Heat Transfer Conference . 2005

机译：在燃料电池的多孔阴极中传热
5. Transfer of mass and heat in polymer electrolyte membrane fuel cell cathode. [D] . Zamel, Nada. 2007

机译：聚合物电解质膜燃料电池阴极中的质量和热量传递。
6. Mechanism of Cathodic Performance Enhancement by aFew-Nanometer-Thick Oxide Overcoat on Porous Pt Cathodes of SolidOxide Fuel Cells [O] . Alireza Karimaghaloo, Angela Macedo Andrade, Simranjit Grewal, 2017

机译：阴极提高阴极性能的机理固体多孔Pt阴极上几纳米厚的氧化层氧化物燃料电池
7. Heat and Mass Transfer Modeling of Dry Gases in the Cathode of PEM Fuel Cells [O] . 2015

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HEAT TRANSFER IN A POROUS CATHODE OF FUEL CELLS

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