高溫型質子交換膜燃料電池與內部甲醇重組器整合系統之研究

Research on integrated system of high-temperature proton exchange membrane fuel cell with internal reformer

陳冠嘉(Kuan-chia Chen)

指導教授 ： 翁芳柏

元智大學/工程學院/先進能源碩士學位學程/碩士(2011年)

摘要

本研究中分成三個部分來探討，第一為利用自製燃燒器及重組器搭配商購觸媒進行甲醇蒸氣重組產氫實驗，在不同進料流率及溫度下找到最佳的氫氣轉換效率；第二部分量測不同溫度以及進料流量對電池性能的影響；第三部份乃將自製燃燒器、重組器、高溫型質子交換膜燃料電池做初步整合進行性能量測，並進行一段式重組器與兩段式重組器性能比較，針對重組器所產之氣體成份71%~75%H2、20%~22%CO2、1%~2 %CO供應燃料電池，產氫流量維持在0.3~0.4L/min之間，觀察燃料電池的性能變化。
結果顯示最佳電池操作溫度，純氫為190℃，其功率密度在0.344W/cm2；高溫型質子交換膜燃料電池進一步的與重組器做整合研究，也讓單電池在一段式重組器及兩段式重組器分別產出最大功率5W和6W。兩段式重組器也提升了甲醇重組器的甲醇重組效率及產氫流量的穩定度。

關鍵字

高溫型質子交換膜燃料電池 ； 甲醇重組器 ； 產氫 ； 整合研究

並列摘要

In this study, focus on three parts in integration with high temperature proton exchange membrane fuel cell (HT-PEMFC) and internal reformer. First, use the commercial catalyst in reformer and experiment with different methanol inlet flow rate and operate temperature to find the best hydrogen production efficiency. The heat was provided by home-made combustor. Second, experiment the effect on different operate temperature and fuel flow rate in cell performance. Final, integrated home-made combustor, reformer and HT-PEMFC together, compare the performance with fuel from one-step and two-step reformer. The reformer gas contains 71%~75% H2, 20%~22% CO2 and 1%~2% CO, the flow rate was between 0.3~0.4 L/min.
Result shows the best performance of operate temperature in pure hydrogen was at 190℃ and the power density was 0.334 W/cm2. The research in integration with HT-PEMFC and internal reformer shows the specific power in one-step and two-step reformer was 5W and 6W.Compare to the one-step reformer, the two-step reformer elevate the hydrogen production efficiency and fuel stabilize.

並列關鍵字

High temperature PEMFC ； Methanol Reformer ； Hydrogen production ； integration study

參考文獻

17 林慰捷「微小型燃料重組器與高溫質子交換膜燃料電池整合研究」元智大學碩士論文2009.

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