異丙醇混合超級柴油的油品特性對直噴式柴油引擎影響之研究

The Study on Diesel Engine Performance with Characteristic of Isopropanol Fuel Mixed with Super Diesel Fuel in Direct Injection Diesel Engine

藍士傑(Shi-Jie Lan)

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(2012年)

摘要

現今醇類燃料已是石化柴油混合生質燃料中另一個熱門話題。醇類燃料屬於含氧燃料，有助於柴油引擎在燃燒時更加完全；另有些含有水份的醇類燃料其對柴油引擎燃燒有水微爆的作用可提高燃燒效率，而有減低柴油引擎廢氣濃度的排放使引擎性能改善的優點。根據國內外文獻中，有關異丙醇含水的研究較甲醇或乙醇燃料少，故本研究將探討市售超級柴油中添加異丙醇混合燃料以及含水異丙醇添加於超級柴油的混合燃料對柴油引擎的影響。其結果顯示，含氧異丙醇混合燃料在BSFC和HC排放濃度均較SD燃料高，但其Smoke、NOx排放濃度以及EGT值有顯著下降。又含水異丙醇混合燃料因水微爆作用使BSFC值較高外，但其Smoke、NOx和HC廢氣排放濃度以及EGT值均低於無水異丙醇混合燃料。

關鍵字

直噴式柴油引擎 ； 燃料消耗率 ； 廢氣排放 ； 異丙醇 ； 微爆現象

並列摘要

Bio-alcohol fuels mixing with super diesel is the most top issue in the world, now. It can contribute to the combustion of diesel engine; some others with water have micro-explosion effect to improve combustion efficiency in diesel engine and reduce exhaust emissions to augment engine performance. According to researching about isopropyl alcohol used in diesel engine all over the world is barely uncover. So the study investigates the effect on diesel engines performance and exhaust emissions by adding high-purity isopropyl alcohol and water-contained isopropyl alcohol into the super diesel. The results show that the anhydrous mixed fuel has higher BSFC value, HC emissions, the smoke, NOx and exhaust gas temperature, however, is lower than those of super diesel; the mixed fuel with water which contains lower heating value also has higher BSFC value, but the smoke, NOx and HC emission levels as well as exhaust gas temperature are lower than those of anhydrous mixed fuel.

並列關鍵字

Direct Injection Diesel Engine ； Fuel Consumption ； Exhaust Emission ； Isopropanol mixed fuels ； Micro-Explosion

參考文獻

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[2] 2010 World Motor Vehicle Production Statistic, http://oica.net/category/production-statistics/

[4] British Petroleum Public limited company, BP Statistical Review of World Energy June 2011

[11] A. Lif, K. Holmberg, "Water-in-diesel emulsions and related systems," Adv.Colloid Interface Sci., vol.123-126, no.0, 2006。pp.231-239

[14] 陳正文，複合液滴的受熱行為與微爆現象，碩士論文，國立成功大學機械工程學系碩博士班，台南市，2005。