Endurance Test of Indirect Injection Diesel Engine using Pure Plant Oil from Tamanu Seed (Calophyllum Inophyllum) and Coconut (Cocos nucifera)

• Main Author: Ardiansyah, Aji
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/37945
• Institution: Institut Teknologi Bandung

The use of petroleum in the form of fuel in Indonesia still has challenges. Few of the challenges are the imbalance in the amount of production and consumption and the effect of its use on the environment. Plant oil can be a solution and has the potential to overcome the challenges of petroleum fuel usage. Indonesia is a country in the tropics and an agricultural country, so Indonesia has the potential to produce various types of plant oils. The vegetable oil produced has the potential to be an alternative energy source. This study aims to determine whether pure tamanu oil can be an alternative diesel fuel for B-20 and the difference with pure coconut oil used conventionally as a mixture using performance tests and endurance tests according to SAE 942010 standard on indirect injection diesel engine. Test results on indirect injection diesel engine after endurance test showed changes for all performance characteristics. Average increase in specific fuel consumption of tamanu oil, coconut oil and B-20 are 33.56 kg/kWh, 198.14 kg/kWh, and 26.78 kg/kWh respectively. Average increase in smoke opacity emissions of tamanu oil, coconut oil and B-20 are 3.54%, 14.18%, and 4.86% respectively. Average increase in NOx emission of tamanu oil, coconut oil, and B-20 emissions are 18 ppm, 99 ppm, and 11 ppm respectively. Total addition of deposits on cylinder heads and pistons after the endurance test of tamanu oil, coconut oil, and B-20 are 82.5 mm, 246.8 mm and 144.2 mm respectively. Average reduction on the dimensions of fuel injection needles and fuel pump plungers for tamanu oil, coconut oil and B-20 are 5 mm, 2 mm, 8 mm, 4 mm, 14 mm and 6 mm respectively.