本論文中，針對質子交換膜燃料電池之雙極板製作，提出合理可行之設計與分析方法，所探討的高分子材料(Nylon 6)/不銹鋼合金纖維(S316L alloy fiber)進行混煉成複合導電材料，之後利用精密射出成型機快速製作成型，並對複合雙極板進行導電度、SEM觀測、抗壓強度、氣密度、電阻率和整體燃料電池性能測試等影響。實驗結果顯示出複合導電雙極板獲得低成本、導電度、氣密度、耐腐蝕性與機械製作穩定性佳的特性。
本論文亦探討渠道之壁面在增加波浪狀流道形狀(wave-like form channel)設計下的數值研究，對此流道模式中在不同的操作條件和設計參數下，燃料在氣體流道、氣體擴散層和觸媒層與質子交換膜內部之傳輸行為，模擬氣體在流道中流動、擴散與熱傳現象，並討論在二維與三維七層結構中燃料電池性能之影響。此新型波浪狀流道設計模擬結果顯示出與傳統直流管流道比較，由於其傳輸效果而有較佳性能表現，並可有效將反應生成水帶走。
對波浪狀流道之熱傳增強分析利用場協同理論來驗證所得的數值解，說明透過速度場與溫度梯度場之間的相互配合可使熱傳量增加，在雷諾數Re=200時波浪狀障礙物協同角平均為70.5度比無障礙物的平均協同角少16度，所以本論文利用場協同理論適當證明了新型流道設計之正確性。

This paper develops a novel composite material for the bipolar plates in Proton Exchange Membrane Fuel Cells (PEMFCs). In general, the materials used to fabricate PEMFC bipolar plates must be low-cost, easily fabricated, light, strong, mechanically stable, and have a low surface contact resistance. Therefore, this study fabricates bipolar plates using a composite material comprising Nylon-6 and S316L stainless steel alloy fibers. The PEMFC plates are fabricated via an injection molding process, which yields better production rates than coating or treating metal plates with a suitable surface material. It is shown that the developed composite material has a suitable combination of properties and process-ability for PEMFC bipolar plate applications.
The simulation results show that compared to the straight geometry of a conventional gas flow channel, the wave-like configuration enhances the transport through the porous layer and improves the temperature distribution within the channel. As a result, the PEMFC has an improved fuel utilization efficiency and an enhanced heat transfer performance. This increases the rate at which the oxygen gas is consumed in the fuel cell but improves the electrical performance of the PEMFC. The results show that compared to the conventional straight gas flow channel, the wave-like gas flow channel increases the output voltage and improves the power density.
Hence, the present numerical results are consistent with the field synergy principle, which states that the convective heat transfer is enhanced when the velocity vector and temperature gradient are closely aligned with one another. At the value of Re=200 considered in the present simulations, the intersection angle of the velocity vector and the temperature gradient in the straight channel is 86.5°. However, in the gas flow channel with the wave-like form geometry, the intersection angle is reduced to 70.5°. The numerical results show that the wave-like geometry are consistent with the field synergy principle.

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