TEST OF BIODIESEL FROM USED COOKING OIL FROM DORMITORY X ON OPACITY AND EXHAUST EMISSIONS HC, CO AND CO2

The current trend is the use of biodiesel as an alternative fuel, one used cooking oil. Not many Indonesian people are aware great potential for utilizing oil or what commonly called (waste vegetable WVO, also known waste WCO and UCO). aim to minimize pollution used/used in surrounding environment environmental conservation, know characteristics quality requirements oil/used from dormitory X become according SNI 04-7182-2015 standards, well effect blending with PT Pertamina's Solar TBBM on opacity, performance exhaust emissions diesel engines. Test results test criteria smell, taste, visual color, water content, free fatty acids, acid number peroxide value do not meet standards 01-3741-2002, so they suitable consumption again because toxic. highest yield 81.33% lowest 61.7%. Analysis FAME content was 98.18% remaining 0.72% glycerol. methyl palmitate 47.57% 1.502% myristate. Density were 815 – 880, viscosity 2.3 6.0 cST, 210,667 366,750, ASTM Copper Strip color copper blade corrosion sequentially 3 class 1 A. opacity achieved at 3000 rpm rotation . Emissions hydrocarbons (HC) produce no HC average. Carbon monoxide (CO) average 0.05% by volume. Emission levels CO2 gas show 0.2%