頁籤選單縮合
題名 | Experimental Investigation of 1 kW Solid Oxide Fuel Cell System with Hydrogen Fed Fuel and an Exhaust gas Burner=kW級續燃器以氫為燃料之燃燒特性研究及SOFC BOP之規劃 |
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作者 | 顏子翔; 洪文堂; 蔡禹擎; 王宏瑜; 黃正男; 李堅雄; 陳寶東; | 書刊名 | 中國機械工程學刊 |
卷期 | 32:4 2011.08[民100.08] |
頁次 | 頁293-302 |
分類號 | 468.1 |
關鍵詞 | 固態氧化物燃料電池; 電化學反應; 續燃器; SOFC; Porous media burner; CHP; |
語文 | 英文(English) |
中文摘要 | 固態氧化物燃料電池(SOFC)屬於高溫型的燃料電池,其電化學反應需在高溫的運轉條件之下進行以釋放出電能,而電池堆陽極出口未反應燃料氣體可藉由續燃器將殘餘燃料進行燃燒反應,不僅可降低污染排放亦能提升系統之整體效率。本文重點著重於透過不同的實驗矩陣來尋求其最佳運轉條件,進一步將續燃器整合入SOFC系統操作,運轉過程中需避免續燃器的回火與熄火的發生,最後並得到在電池堆長期運轉條件下,續燃器不需添加額外甲烷與冷卻氣流下也能維持正常運轉。在尋得理論空氣比為2時,其續燃器空氣入口溫度為330°C為長期運轉之最佳條件。 |
英文摘要 | Compared to other fuel cell types, solid oxide fuel cell (SOFC) have a number of attractive features: fuel flexibility, components that are all solid state, no water management issues, and high quality surplus heat for combined heat and power (CHP). The aim of this paper is to investigate the optimal operation condition of porous media burner (so called after-burner) in a SOFC power system. The functions of after-burner are to increase the thermal efficiency and to decrease the harmful emissions of anode off gas for the SOFC operation. In order to find the optimal operation condition of after-burner, the experimental investigation of after-burner control logic is needed. The key manipulation parameters and the optimal after-burner operation conditions are presented in this paper. The experimental results show that the optimal after-burner operation is obtained when using an anode off-gas temperature of 650°C, a cathode off-gas temperature of 330°C, a flame barrier temperature of 700°C, an excess air ratio of 2 and a fuel utilization of U(subscript f) =0.6. Finally no extra fuel and additional cooling air are fulfilled under the long term operation of SOFC system and the simulations from burner ignition to SOFC long term operation period are also conducted. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。