應用兩相流模型分析指叉式質子交換膜燃料電池

Two-Phase Flow Model in PEM Fuel Cells Using Interdigitated Flow Fields

張庭瑋(Ting-Wei Chang)

指導教授 ： 邱青煌

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2010年)

https://doi.org/10.6827/NFU.2010.00022

摘要

本研究是藉由COMSOL多重物理量耦合分析軟體來建立一個二維的兩相流質子交換膜燃料電池模型。模擬的區域有陰極和陽極的氣體擴散層與觸媒層和質子交換膜。
此研究使用連續方程式和Brinkman方程，來描述反應氣體與生成物在氣體擴散層、觸媒層的流動情形和壓力分佈。並且在氣體擴散層與觸媒層考慮兩相（氣體、液體）的質傳和水飽和度。透過Maxwell-Stefan方程來計算反應氣體的生成與消耗。電位是利用電荷守恒方程求得。電化學反應則是使用Butler–Volmer來計算。
主要的研究目的為改變操作參數進行分析，並探討電流密度與功率密度和液態水飽和度之影響。
關鍵字：兩相流，質子交換膜，燃料電池

關鍵字

兩相流 ； 質子交換膜 ； 燃料電池

並列摘要

The study create a two-dimensional two-phase proton exchange membrane fuel cell model by COMSOL Multiphysics. The calculated region has contained anode and cathode gas diffusion layers, catalyst layers and proton exchange membrane.
This study uses the continuity equation and Brinkman equation to describe the reactant gas and production flowing and the pressure distribution in the gas-diffusion layers, catalyst layers. The gas diffusion layer and catalyst layer considering the two-phase (gas or liquid) mass transfer, and water saturation. The Maxwell-Stefan equation is to calculate species tansport of multi-component mixture gas. The potential is use charge conservation equation to decribe. The electrochemical reation is use Butler-Vomer equation to calculate.
The main research objective is to change the operating parameters, and study the current density and power density and liquid water saturation effect.
Key word：Two phase flow, PEMFC, COMSOL.

並列關鍵字

Two phase flow ； PEMFC ； COMSOL

參考文獻

[46]. 蘇建誌, “三維指叉式質子交換膜燃料電池的傳輸機制和性能分析, “虎尾科技大學碩士論文, 2009.

[49]. 衣寶廉，“燃料電池-原理與應用”，五南出版社，2005.

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[3]. Ugur Pasaogullari, Chao-Yang Wang, “Two-Phase Modeling and Flooding Prediction of Polymer Electrolyte Fuel Cells,” Journal of The Electrochemical Society, Vol.152 (2), pp.A380-A390, 2005.