POTENSI PENAMBAHAN BUTANOL PADA BAHAN BAKAR TERHADAP PENINGKATAN KINERJA MOTOR MATIC SATU SILINDER
Keywords:
butanol, bahan bakar, kinerja, motor maticAbstract
Dalam penelitian ini, menggunakan mesin-Spark Ignition (SI) empat langkah satu silinder dan bahan bakar rasio campuran butanol. Penelitian dilakukan dengan empat jenis bahan bakar yaitu B0 (0 vol% butanol dan 100 vol% bensin), B5, B10 dan B15, kondisi operasi putaran mesin 4000 r/min dan 9000 r/min, posisi full open-throttle; dengan kondisi ignition-timing standar. Hasilnya menunjukkan bahwa dengan meningkatnya rasio campuran-butanol, laju aliran massa bahan bakar meningkat. Daya keluaran, Efisiensi Termal (TE) dan Konsumsi Bahan Bakar Spesifik (SFC) meningkat dengan penambahan rasio butanol. Pengujian performa mesin menghasilkan output daya dan efisiensi yang maksimal pada campuran 15% ethanol-bensin pada putaran mesin 8000 rpm sebesar 8,15 kW. Rata-rata kenaikan tekanan cukup maksimal terjadi pada putaran 5000 rpm sebesar 893 kPa. Konsumsi bahan bakar spesifik telah menurun setidaknya 3,75% terhadap bahan bakar RON 90, kemudian campuran bensin-butanol (5% dan 10%) masing-masing berkurang sebesar 3,2% dan 2,4%.
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