玉米油甲酯混合燃料使用在直噴式柴油引擎之研究

The Study on Using Corn Oil Methyl Ester (COME) Blended Fuel in a DI Diesel Engine

蘇進田(Chin-tien Su)

指導教授 ： 林百福

國立臺北科技大學/機電學院/車輛工程系所/碩士(2007年)

摘要

純玉米油甲酯生質柴油(B100)直接使用在柴油引擎時，雖不影響原柴油引擎的性能又可減低二分之一以上的Smoke排放濃度。但在長時間的使用之下，由於植物生質柴油中含有可溶性有機物、皂化物和不純雜質的關係，以致易使活塞環喪失功能，機油、柴油濾清器和噴油咀堵塞乃至引起燃料系統中金屬零件的生?袢央C因此，需將生質柴油混合在石化高級柴油中使用，以延長柴引擎的使用壽命。本研究將玉米油甲酯生質柴油混合在石化高級柴油中成為B20和B50的玉米油甲酯混合生質柴油，經引擎性能實驗結果顯示，B20和B50的玉米油甲酯生質柴油混合燃料比純玉米油甲酯生質柴油(B100)，在燃料消耗率和NOx濃度排放上分別低約8.45%、7.57%和3.61%、5.12%，而在Smoke和HC濃度排放上則分別增加72.57%、12.62%和49.11%、6.69%。經以上的結果得知，混合玉米油甲酯生質柴油的比例愈高，則燃料消耗率及NOx排放濃度就愈增加。相反的，Smoke和HC的排放濃度就愈減少。

關鍵字

玉米油甲酯生質柴油混合燃料 ； 直噴式柴油引擎 ； 引擎性能 ； 油耗及廢氣排放濃度

並列摘要

Using pure corn oil methyl ester on diesel engine not only maintains engine performance but also reduces the concentration of Smoke more than 50 percent. But for a long term used, functions of the piston ring is destroyed easily, oil and diesel filter as well as injection nozzle may cause plug, even the metal parts rusted due to biodiesel has soluable orgnic friction, accumulation of soaps and impurity included. So biodiesel blended with fossil premium diesel for prolonging diesel engine life time is necessary. In this study, B20 and B50 corn oil methyl ester blended fuels are blended by corn oil methyl ester with fossil premium diesel. After diesel engine performance experiment, experimental results demonstrated that BSFC and the concentration of NOx emission for B20 and B50 are lower than B100 about 8.45%, 7.57% and 3.61%, 5.12%, respectively. For the concentrations of Smoke and HC emission, either increase about 72.57%, 12.62% and 49.11%, 6.69%, respectively. Therefore, the higher proportion of corn oil methyl ester blended fuel is used, the more BSFC and the concentration of Nox emission are increased. On the other hand, the more concentrations of Smoke and HC emission are decreased.

並列關鍵字

Corn Oil Methyl Ester Blended Fuel ； DI Diesel Engines ； Engine Performance ； Fuel Consumption ； Concentration of Exhaust Gas Emission

參考文獻

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