Kinerja Mesin Spark Ignition (SI) Berbahan Bakar Campuran Bensin-Metanol (M-20) Dan Bensin-Etanol (E-20) Pada Variasi Nilai Oktan
Sari
Bahan bakar alkohol seperti etanol dan metanol saat ini dianggap sebagai alternatif bahan bakar yang ramah lingkungan dan dapat digunakan untuk campuran dengan bahan bakar lain. Dalam penelitian ini, etanol dan metanol dicampurkan ke dalam bensin dengan nilai RON 88 dan RON 90 menjadi E-20 dan M-20. Selanjutnya digunakan dalam sepeda motor uji dengan sistem pengapian busi empat langkah satu silinder dengan karburator untuk mendapatkan keluaran kinerja mesin seperti daya, torsi, konsumsi bahan bakar dalam satuan liter/km dan emisi gas buang untuk putaran rendah. Hasil pengujian menunjukkan bahwa daya dan torsi bahan bakar campuran E-20 lebih tinggi dibandingkan M-20, sedangkan konsumsi bahan bakar untuk variasi kecepatan 40 km/jam, 60km/jam dan 80km/jam bahan bakar campuran M-20 lebih tinggi dibandingkan E-20. Tingkat emisi CO yang dihasilkan M-20 lebih rendah dibandingkan E-20, namun tingkat emisi HC yang dihasilkan M-20 lebih tinggi dibandingkan E-20.
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DOI: https://doi.org/10.29017/LPMGB.56.2.1173
