Pengaruh Penambahan Aditif Olive Oil Pada Pelumas Mesin Diesel Berbahan Bakar Biodiesel B100

Sugara, Deva Athaillah Kaisar Putra (2026) Pengaruh Penambahan Aditif Olive Oil Pada Pelumas Mesin Diesel Berbahan Bakar Biodiesel B100. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5019221081-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (6MB) | Request a copy

Abstract

Penggunaan biodiesel B100 sebagai bahan bakar alternatif semakin berkembang karena bersifat terbarukan, mudah terurai secara hayati, dan lebih ramah lingkungan dibandingkan bahan bakar diesel berbasis fosil. Meskipun demikian, karakteristik biodiesel yang memiliki kandungan oksigen, polaritas, dan kecenderungan mengalami oksidasi lebih tinggi dibandingkan solar berpotensi meningkatkan degradasi pelumas melalui proses oksidasi, fuel dilution, dan pembentukan senyawa asam, sehingga dapat mempercepat keausan komponen serta memengaruhi performa mesin diesel. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan 5% olive oil sebagai aditif pada pelumas Mesran SAE 40 terhadap karakteristik pelumas dan performa mesin diesel berbahan bakar biodiesel B100. Pengujian dilakukan menggunakan mesin diesel satu silinder Yanmar TF85-MH selama 200 jam berdasarkan prosedur uji durabilitas Engine Manufacturers Association (EMA). Parameter karakteristik pelumas yang dianalisis meliputi viskositas, Total Base Number (TBN), kandungan logam keausan (wear metal), water content, dan tingkat oksidasi, sedangkan performa mesin dievaluasi berdasarkan daya, torsi, dan Specific Fuel Oil Consumption (SFOC). Hasil penelitian menunjukkan bahwa penambahan 5% olive oil mampu meningkatkan stabilitas pelumas dengan penurunan viskositas sebesar 21,6%, lebih rendah dibandingkan pelumas tanpa aditif yang mengalami penurunan sebesar 34,08%. Nilai TBN pelumas beraditif juga lebih mampu dipertahankan setelah pengujian, sedangkan kandungan logam keausan, khususnya besi (Fe), menurun signifikan dari 376 ppm menjadi 93 ppm yang mengindikasikan berkurangnya keausan komponen mesin. Dari aspek performa, penggunaan pelumas dengan penambahan olive oil menghasilkan peningkatan rata-rata torsi sebesar 40% dan daya sebesar 40%, serta penurunan rata-rata nilai Specific Fuel Oil Consumption (SFOC), yang menunjukkan pemanfaatan bahan bakar menjadi lebih efisien dibandingkan pelumas tanpa aditif. Berdasarkan hasil penelitian, dapat disimpulkan bahwa penambahan 5% olive oil pada pelumas Mesran SAE 40 mampu meningkatkan karakteristik pelumas melalui stabilitas viskositas yang lebih baik, mempertahankan kemampuan netralisasi pelumas yang ditunjukkan oleh nilai TBN, serta menurunkan tingkat keausan komponen mesin. Penambahan olive oil juga memberikan pengaruh positif terhadap performa mesin diesel berbahan bakar biodiesel B100 dengan meningkatkan daya dan torsi serta menurunkan nilai SFOC. Dengan demikian, penambahan 5% olive oil terbukti efektif meningkatkan kualitas pelumasan, memperlambat degradasi pelumas selama pengoperasian 200 jam, dan mendukung peningkatan efisiensi serta keandalan mesin diesel berbahan bakar biodiesel B100.
===========================================================================================================================
The use of B100 biodiesel as an alternative fuel has continued to grow due to its renewable nature, biodegradability, and lower environmental impact compared with conventional petroleum diesel. However, the higher oxygen content, polarity, and oxidation susceptibility of biodiesel may accelerate lubricant degradation through oxidation, fuel dilution, and acidic compound formation, leading to increased engine component wear and deterioration of diesel engine performance. This study aimed to investigate the effect of adding 5% olive oil as an additive to Mesran SAE 40 lubricant on lubricant characteristics and the performance of a diesel engine fueled with B100 biodiesel. The experiment was conducted using a single-cylinder Yanmar TF85-MH diesel engine for 200 operating hours based on the Engine Manufacturers Association (EMA) durability test procedure. The lubricant properties evaluated included viscosity, Total Base Number (TBN), wear metal content, water content, and oxidation level, while engine performance was assessed in terms of power, torque, and Specific Fuel Oil Consumption (SFOC). The results showed that the addition of 5% olive oil improved lubricant stability, with a viscosity reduction of 21,6%, compared with a 34,08% reduction in the lubricant without additives. The additive-treated lubricant also maintained a higher TBN after the durability test, while the iron (Fe) wear metal concentration decreased significantly from 376 ppm to 93 ppm, indicating reduced engine component wear. In terms of engine performance, the lubricant containing olive oil increased the average torque and power by 40% and reduced the average SFOC, indicating more efficient fuel utilization than the lubricant without additives. Overall, the results demonstrate that the addition of 5% olive oil to Mesran SAE 40 lubricant improves lubricant characteristics by enhancing viscosity stability, maintaining the lubricant’s neutralizing capability as reflected by TBN, and reducing engine wear. Furthermore, the olive oil additive positively affects the performance of diesel engines fueled with B100 biodiesel by increasing power and torque while decreasing SFOC. Therefore, the addition of 5% olive oil is proven to be effective in improving lubrication quality, slowing lubricant degradation during 200 hours of engine operation, and enhancing the efficiency and reliability of diesel engines operating on B100 biodiesel.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	aditif olive oil, biodiesel B100, degradasi, pelumas, performa, biodiesel B100, degradation, lubricant , olive oil additive, performance
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1077 Lubrication and lubricants. T Technology > TP Chemical technology > TP359.B46 Biodiesel fuels. V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM731 Marine Engines
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Deva Athaillah Kaisar Putra Sugara
Date Deposited:	04 Aug 2026 07:05
Last Modified:	04 Aug 2026 07:05
URI:	http://repository.its.ac.id/id/eprint/141372

Actions (login required)

View Item