甲醇超級柴油混合燃料對直噴式柴油引擎性能影響之研究

The Study on Performance, Fuel Consumption, and Exhaust Emissions Effect of Methanol-Super Diesel Mixture Fuel in Direct Injection Diesel Engine

鄭錦翰(Chin-Han Cheng)

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

柴油引擎具有熱效率高、輸出扭力大及油價便宜、穩定又耐用等諸多優點，因此在動力機械方面始終扮演著重要的角色，如車輛、船舶、農業機械等，對於全球經濟發展功不可沒；然而排放的黑煙、氮氧化合物和碳氫化合物的濃度造成空氣汙染，影響人類健康，長期吸入會導致呼吸系統疾病。為了降低這些有害廢氣的排放，本研究將高純度的甲醇及高純度的甲醇中添加5%蒸餾水的燃料加入柴油中，且在不改變原柴油引擎設計參數下，探討此兩種甲醇混合燃料對柴油引擎性能、燃料消耗率和廢氣排放濃度等影響之分析。經實驗結果顯示：兩種甲醇混合燃料的BSFC值均較超級柴油高，但其smoke、HC和NOX排放濃度以及EGT值均較超級柴油有顯著的減低。又添加蒸餾水的高純度甲醇混合燃料之BSFC值較高醇度的甲醇混合燃料高，但其smoke、HC和NOX排放濃度以及EGT值均低於高醇度的甲醇混合燃料。

關鍵字

甲醇混合燃料 ； 直噴式柴油引擎性能 ； 燃料消耗率 ； 廢氣排放

並列摘要

Diesel engines have the advantage of high thermal efficiency, maximum torque output, cheap oil, stability and durability. So diesel engine has an important contribution in dynamic machine, such as vehicle, ship, agri-motor etc. It is effective contributions to develop world economy. But the contaminant of diesel engines, such as smoke, NOX and HC emissions will lead air pollution to damage respiratory disease. In order to reducing exhaust emission, the theme of theses analyze that super diesel fuels are added by 90% with high-purity methanol additive and 5% water-contented methanol additive in non-modified diesel engines, respectively. The results show that the anhydrous methanol mixed fuel has higher BSFC value, the smoke, NOX, HC emissions and exhaust gas temperature, however, is lower than super diesel; the methanol 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 the anhydrous methanol mixed fuel.

並列關鍵字

Methanol mixed fuels ； Direct Injection Diesel Engine Performance ； Fuel Consumption ； Exhaust Emission

參考文獻

[1]左峻德，「我國發展生質能源產業之可能性」，農業生技產業季刊，第九期，2007年，第56-61頁。

[5]行政院環境保護署移動汙染源管制網，柴油車管制-加嚴排放標準，2011。

[2]BP, "Statistical Review of World Energy June 2011," http://www.bp.com/sectionbo dycopy.do?categoryId=7500&contentId=7068481, 2011.

[3]Arcoumaris, C.Megaritis, A., "Real-Time Measurement of Particulate Emissions in a Turbocharged DI Diesel Engine," SAE paper, No.922390, 1992.

[8]Environment News Service (ENS), http://www.ens-newswire.com/ens/sep2011/ 2011-09-30-01.html, 2011.