質子交換膜燃料電池之流場均勻性分析

The Analysis of Flow Field Uniformity in Proton Exchange Membrane Fuel Cell

楊尚昇(Shang-Shen Yang)

指導教授 ： 郭鴻森

大同大學/工程學院/機械工程學系所/碩士(2005年)

摘要

本論文主要在探討近年新興的能源技術 – 質子交換膜燃料電池之流場設計，利用CFD軟體 – FLOTHERM，使用有限體積法來做電腦輔助模擬，進行流場均勻性分析，希望能設計出一具有較均勻流場的燃料電池流場板。
文中所探討的流場板尺寸為205mm×205mm×3mm，膜電極組反應面積為140mm×140mm，流場型式為傳統型式之平行流場。在不考慮電化學反應、氣體擴散層孔隙及熱傳效應情況下，針對單電池流場中各流道之氣體流量均勻性進行模擬並設計出具備良好氣體分佈特性之燃料電池流場。
將流場板依設計出的電池流場進行加工、組裝、以及測試，以了解電池實際運作時之效率。

關鍵字

電化學反應 ； 流場均勻性 ； 膜電極組 ； 質子交換膜燃料電池

並列摘要

The principal investigation in this study is flow field design in Proton Exchange Membrane Fuel Cell which belongs to a new and developing energy technology recently . The CFD package software – FLOTHERM , was used for simulation and analysis the flow field uniformity to devise the more uniform flow field of fuel cell by finite volume method .
In this study , the dimension of flow field is 205mm×205mm×3mm , the activating area of membrane-electrode assembly is 140mm×140mm , the flow field plate type was Conventional Flow Field . The electrochemical reaction、the heat transfer and the influence of porosity in gas diffusion layer is neglected , Specific simulation on the gas flow rate uniformity in each channel of single cell flow field is taken to devise the well gas distribution characteristic of fuel cell flow field .
To manufacture、fabricate and test the designed fuel cell flow field plate is carried in order to understand that the actual operation efficiency of fuel cell .

並列關鍵字

electrochemical reaction ； flow field uniformity ； membrane-electrode assembly ； Proton Exchange Membrane Fuel Cell

參考文獻

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