Analisa Performa Mesin Motor 4 Langkah 150 CC Injeksi Terhadap Campuran Bioetanol Dalam Bahan Bakar Pertalite
Keywords:
bioethanol, torque, power, AFR, MEP, BMEPAbstract
The availability of fossil fuels as an energy source is increasingly limited, so there is a need for new energy sources as alternatives that are more environmentally friendly (renewable energy). Bioethanol (C_2H_5OH) is a chemical compound in liquid form, clear, colorless, has a distinctive aroma, has a liquid phase at room temperature, and is flammable. The use of bioethanol as a fuel mixture is expected to reduce fuel consumption from petroleum. This research uses fermented cassava as bioethanol. The aim of this research is to determine the effect of the bioethanol mixture in pertalite. This research uses experimental methods, with variations in the bioethanol mixture of 15%, 20%, and 25%. The results obtained in this research using an optimal mixture of bioethanol and pertalite were obtained in a mixture of 15% bioethanol. The maximum torque is found in the 15% mixture, namely 10.86 Nm at 8300 rpm. Meanwhile, the maximum power is found in the 15% mixture with a power of 10.578 kW at 10,000 rpm. In each mixture of bioethanol and pertalite, the AFR becomes greater, meaning that each AFR mixture uses less fuel. Test results on variations of the bioethanol mixture used in this research, the highest effective pressure was obtained at engine rpm at 8300 rpm with an MEP of 931.437 kPa in a mixture of 15% ethanol. The maximum BMEP test results are in the E15 mixture with the largest torque of 10.86 Nm at 8300 rpm, producing a BMEP of 927.902 kPa.
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