DC 欄位 | 值 | 語言 |
dc.contributor | 蘇金佳 | zh-TW |
dc.contributor | 臺灣大學:機械工程學研究所 | zh-TW |
dc.contributor.author | 陳宗成 | zh-TW |
dc.contributor.author | Chen, Tsung-Cheng | en |
dc.creator | 陳宗成 | zh-TW |
dc.creator | Chen, Tsung-Cheng | en |
dc.date | 2009 | en |
dc.date.accessioned | 2010-06-30T09:28:06Z | - |
dc.date.accessioned | 2018-06-28T17:33:07Z | - |
dc.date.available | 2010-06-30T09:28:06Z | - |
dc.date.available | 2018-06-28T17:33:07Z | - |
dc.date.issued | 2009 | - |
dc.identifier.other | U0001-2007200914340600 | en |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/187167 | - |
dc.description.abstract | 微型質子交換膜燃料電池為最適用於可攜帶性電子產品之潔淨科技,為提供其氫氣來源須搭配穩定微型氫氣產生設備,本研究建置一套微型甲醇蒸氣重組系統,藉此探討在不同操作條件下對於甲醇轉化率與氫氣產生率之影響,其設定實驗參數分別為反應溫度、甲醇水溶液濃度、甲醇水溶液進料率、流道長度與微流道截面尺寸。 甲醇蒸氣重組反應為甲醇水溶液經重組後生成氫氣與二氧化碳,為此本實驗設計一三上三下蛇行流道之重組反應器,其尺寸設計為100mm×120mm×15mm,單流道截面則有0.75 mm *0.75 mm與0.75 mm *1.5mm,流道長度分別為633mm、1015mm與1392mm,觸媒選擇為CuO-ZnO-Al2O3,其塗佈量上下蓋分別為0.08g與0.14g。 實驗結果顯示,在實驗設定之200-280℃區間,隨著反應溫度增加,甲醇轉化率與氫氣產生率均大幅提升。在280℃時,甲醇進料率0.005ml/min,其轉化率接近100%,氫氣產生率5.4sccm;若甲醇進料率0.02ml/min,其轉化率83.4%,但氫氣產生率18.0sccm,約可供給微型質子交換膜燃料電池產生22.5W功率,為本實驗最高值。反應物濃度方面,水對甲醇比α=1.4相對於其他濃度,如較高之α=1.6與較低之α=1.0、1.2,在不同操作條件下,有較好之甲醇轉化率表現。在進料率方面,甲醇轉化率隨著甲醇進料率調升而降低,氫氣產生率則隨著甲醇進料率調升而上升。反應時間方面,在化學反應初期,增加化學反應的時間能有效促進系統之轉化率,加長反應器流道長度與增大流道截面尺寸則能增加反應流體之反應時間,提高蒸氣重組系統之甲醇轉化率與氫氣產生率。 | zh-TW |
dc.description.abstract | Reformed methanol fuel cell (RMFC) technology uses a steam reforming reactor to generate fuel-cell-ready hydrogen from a highly concentrated methanol solution. For PEMFC at portable electronic devices application, it is needed to develop micro RMFC which will work with micro PEMFC. At this research, a micro reformer was build for experimental study, which was construed with three channels included serpentine flow and has the dimension of 100mm×120mm×15mm. The micro channels have a width of 0.75mm and two kinds of depth, i.e. 0.75mm and 1.5mm. Three length of the channel was designed as 633mm、1015mm and 1392mm. Commercially available CuO-ZnO-Al2O3 catalyst was coated inside the micro channels for steam reforming. The catalyst was used about 0.08g for top plate and about 0.14g for base. The experimental results show the methanol conversion and hydrogen production rate increase with reaction temperature raise at 200-280℃. When reaction temperature at 280℃, 0.005ml/min feeding rate cause that the methanol conversion reaches 100% approximately. But as feeding rate set 0.02ml/min, the methanol conversion was 83.4%, and hydrogen production rate reaches 18.0sccm which can produce power output of 22.5W from micro PEMFC. The experimental results also show that the methanol conversion decrease and the hydrogen production rate increase with feeding rate raise. For different concentration, the water to methanol ratio at 1.4 has optimal methanol conversion. Increasing the length of channel and the dimension of cross section would add the chemical reaction time, and then increase the methanol conversion and hydrogen production rate. | en |
dc.description.tableofcontents | 中文摘要 I文摘要 II錄 III目錄 VI目錄 VII號說明 XI一章 緒論 1.1燃料電池 1.2燃料重組器 2.3甲醇重組反應單元與類型 3.3.1甲醇蒸氣重組法 3.3.2甲醇部份氧化法 3.3.3甲醇自發熱重組法 4.3.4不同甲醇重組反應類型比較 4.4微型重組器 5.5 研究動機 7二章 文獻回顧 8.1甲醇蒸氣重組系統 8.2微型燃料重組器 9.3微流道 11.4研究目的 12三章 實驗設備與步驟 13.1甲醇水溶液供應系統 13.1.1甲醇水溶液儲存槽 13.1.2微幫浦 14.1.3管柱加熱器 14.2重組反應系統 14.2.1反應器本體 14.2.2觸媒選擇 15.2.3防洩環 15.2.4加熱器 16.2.5隔熱裝置 16.2.6溫度控制裝置 16.3收集與量測系統 16.3.1冷卻裝置 16.3.2乾燥器 17.3.3流量計 17.3.4氣相層析儀 17.4實驗程序 18.5實驗過程遭遇問題與解決方法 19四章 結果與討論 21.1甲醇轉化率的計算 21.2溫度效應 22.3水對甲醇比(α)效應 24.4反應時間效應 25.5流道截面尺寸效應 27.6微型甲醇重組系統之氫氣產生率 29.7 響應時間 30.7.1改變反應溫度之效應 30.7.2改變甲醇進料率之效應 31五章 結論與建議 33.1 結論 33.2 建議 34考文獻 35 41 51錄A 誤差分析 86錄B 熱電偶線溫度校正 88錄C 財團法人台灣電子檢驗中心校正報告 89 | en |
dc.format.extent | 4267167 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | zh-TW | en |
dc.language.iso | en_US | - |
dc.subject | 質子交換膜燃料電池 | zh-TW |
dc.subject | 微型 | zh-TW |
dc.subject | 重組器 | zh-TW |
dc.subject | 甲醇 | zh-TW |
dc.subject | 蒸氣重組法 | zh-TW |
dc.subject | 氫 | zh-TW |
dc.subject | PEMFC | en |
dc.subject | micro | en |
dc.subject | reformer | en |
dc.subject | methanol | en |
dc.subject | steam reforming | en |
dc.subject | hydrogen | en |
dc.subject.classification | [SDGs]SDG7 | - |
dc.title | 微型甲醇重組器參數與性能研究 | zh-TW |
dc.title | A Study of Parameters and Performance or Micro Methanol Reformer | en |
dc.type | thesis | en |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/187167/1/ntu-98-R96522306-1.pdf | - |
item.fulltext | with fulltext | - |
item.openairetype | thesis | - |
item.languageiso639-1 | en_US | - |
item.openairecristype | http://purl.org/coar/resource_type/c_46ec | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
顯示於: | 機械工程學系
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