本文使用兩種生質油（大豆油與芥花油）與市售超級柴油混合成不同比例（B1、B2和B20）之試驗用油，並以TE77往復磨耗試驗機評估生質燃料的磨潤性能。藉由改變濃度、溫度及滑動速度等不同條件進行磨耗實驗。並且使用場發射式電子顯微鏡（FE-SEM）、能量分析光譜儀（EDS）、AES/ESCA等儀器進行磨耗表面的觀察和表面膜成份的分析。
試驗結果顯示，B20大豆生質柴油在摩擦和磨耗行為都有較佳的表現。而在線性升溫（30~120℃）條件中，除了B20其它試驗用油在試片表面都出現很嚴重的黏著磨耗和剝層磨耗。此外，在相同試驗條件下，老化過的生質柴油，因為油品酸化顯現出較不抗磨耗的結果。並且在芥花生質柴油的磨耗試驗結果，發現表面有腐蝕磨耗等跡象，因此導致磨耗量偏高的原因。
另外，供油泵損壞件的初步分析結果，顯示其損壞原因可能是生質油產生膠狀物質阻塞機件間的餘隙，因而引發缺油造成磨損；也可能是生質柴油未混合完全而形成沉積所造成，或異物混入所引起。

This thesis evaluated tribological performance of soybean and canola biodiesel by using TE-77 reciprocating sliding wear tester with cylinder-on-plate contact mode. The two kinds of biofuel will be added into the commercial superdiesel respectively and it blended B1、B2 and B20. The wear condition of biodiesel was estimated under different concentration, temperature and sliding velocity. After wear test, specimen used field emission-scanning electron microscope(FE-SEM)、energy dispersive spectrometer(EDS) and auger electron spectroscopy/electron spectroscopy for chemical analysis(AES/ESCA)to analyze wear surface and compound of chemical reaction film.
The experimental results show that B20 soybean biodiesel has best behaviour of friction and wear. Under linear heating (30~120℃) condition, wear surface revealed serious adhesive wear and delamination except specimen of B20. Furthermore, biodiesel displayed poor antiwear property as a result of acid to raise after decay in the same experimental condition. Using similar tribological conditions for canola biodiesel, which observable increase in wear width was observed because of corrosional wear arose from metal surface.
Besides, the failure analysis for fuel pump results show that using biodiesel choked clearance of engine parts by friction polymer to result in starvation lubrication; Moreover, maybe biodiesel was not all blended yet or foreign body made failure.

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