DIRECT INJECTION DIESEL ENGINE CHARACTERISTIC USING PREHEATED AND BLENDED PURE PHYSIC COCONUT OIL (Cocos nucifera)

• Main Author: FUAD SATRIO AJIE (NIM : 13103004); Pembimbing I : Dr. Ir. Iman K. Reksowardojo; Pembimbing II : D, R.
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/16986
• Institution: Institut Teknologi Bandung

Coconut oil is a vegetable oil which can be used as an alternative diesel fuel. This oil has several advantages such as: renewable, environment friendly, biodegradable, available in huge number, very low sulphur content, and edible. The problem is its high viscosity. Therefore, in order to decrease the viscocity, the oil had to be pre-heated before it enters the engine. The main purpose of this research is to compare the effect of preheated and blends 50% pure physic coconut oil with diesel fuel. <br /> <br /> <br /> The engine test runs for 17 hours as an endurance test for the 50% pure physic coconut oil blended with diesel fuel based on SAE Paper 942010. Pure unheated diesel fuel also being tested as a comparison for the pure blended coconut oil results. The results shows that after the endurance test, 50% pure coconut oil is worse at engine performances (-6,4% for BSFC and -3,9% for thermal efficiency), and deposits (for coconut oil-diesel fuel 67% thicker than <br /> <br /> <br /> diesel fuel only).