ANALISIS UNJUK KERJA TERHADAP FOUR STROKE DIESEL ENGINE DENGAN BAHAN BAKAR MULTI-FEEDSTOCK BIODIESEL (MINYAK KELAPA SAWIT, MINYAK JELANTAH, MINYAK KEDELAI)

Abstract

The use of diesel fuel, a finite alami resource, will eventually reach its limits. As a result, finding
alternative fuels like biodiesel has become crucial. Biodiesel is renewable and typically sourced from biological
materials such as plants and animals, offering a more eco- friendly alternative. Common feedstocks for biodiesel
production include palm oil, used cooking oil, and soybean oil. In this study, these three oils were converted into biodiesel
through esterification and transesterification processes and then blended to create multi- feedstock biodiesel. This
biodiesel was mixed with HSD( Pertamina Dex) to produce fuel blends of B20, B35, and B100. The characteristics of
these blends, such as flash point, density, and viscosity, were tested, revealing that B100 biodiesel met the quality
standards specified by SNI. Additionally, B100 biodiesel exhibited the highest power and torque, whereas Pertamina
Dex demonstrated the most efficient fuel consumption. The tests were performed on a four- stroke diesel engine with
lamp loads of 1000 watts, 2000 watts, and 3000 watts, and engine speeds ranging from 1000 rpm to 1400 rpm.