棕櫚仁油甲酯混合燃料應用於直噴式柴油引擎之研究

The Study on Applying Palm Kernel Oil Methyl Ester (PKME) Blended Fuel in a Direct Injection Diesel Engine

林文益(Won-Yih Lin)

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(2006年)

https://doi.org/10.6841/NTUT.2006.00074

摘要

棕櫚仁油的生產能力居各種植物油之冠且油價成本低，是最吸引柴油引擎替代性的生質燃料之一。此外，棕櫚仁油碳鏈的長度也最短，易於燃燒，對柴油引擎煙度排放的改善十分有效。
由於長期使用純生質燃料易於引起引擎潤滑、燃料系統和引擎機件的不良影響。故本研究以不同比例的棕櫚仁油甲酯燃料添加到石化高級柴油燃料中，以探討其引擎性能、油耗及廢氣排放和燃燒特性等影響。經引擎實驗結果得知，添加50％棕櫚仁油甲酯於高級柴油的混合燃料(PKME50)，雖可有效改善油耗及廢氣排放濃度，但引擎性能稍遜。而高級柴油中添加20％棕櫚仁油甲酯的混合燃料(PKME20)，能在不影響引擎性能的條件下，又能改善油耗及廢氣排放濃度。

關鍵字

棕櫚仁油甲酯之混合比例 ； 直噴式柴油引擎 ； 引擎性能 ； 油耗 ； 廢氣排放和燃燒特性

並列摘要

One of the most attractive alternative biodiesels for diesel engines is palm kernel oil methyl ester (PKME), because it has the higher productivity and the lower cost than the other biodiesels. Moreover, PKME is burned easily due to the short chain carbon molecules, so the concentration of smoke can be improved effectively for diesel engines. The lubrication system, fuel system, and the mechanical parts have been caused harmful affections in diesel engines easily for the long-term use of pure biodiesels. Therefore, this study blends the different proportion of PKME with premium diesel to investigate the effect on engine performance, brake specific fuel consumption (BSFC), exhaust gas emissions and combustion characteristics in diesel engines.
Experimental results demonstrated that the blending fuel of 50% PKME with premium diesel (PKME50) can reduce the BSFC and the exhaust gas emissions. However, the engine performance is slightly lower as compared with using PD. The blending fuel of 20% PKME with PD (PKME20) can improve the BSFC and the exhaust gas emission without influence on the engine performance.

並列關鍵字

Mixing Proportion of PKME ； DI Diesel Engines ； Engine Performance ； Fuel Consumption ； Exhaust Gas Emission ； Combustion Characteristics

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