Pengaruh Campuran Bahan Bakar Pertalite-Bioetanol Biji Sorghum pada Mesin Bensin

Abstract

The depletion of fossil fuels, rising of earth temperatures and declining of air quality are an unavoidable phenomenon today. Bioethanol fuel is one solution to reduce this problem that comes from renewable raw materials. The purpose of this study is to investigate engine performance and exhaust emissions at gasoline engine by using the sorghum seeds bioethanol-pertalite blends with different mixed ratios (10%, 15%, and 20%). The test is performed on a four-stroke gasoline engine without modification. Engine speeds vary from 1000 to 4000 rpm, and properties of the sorghum seeds bioethanol-pertalite blends are measured and analyzed. In addition, engine torque, brake power, brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE) as well as carbon monoxide (CO), hydrocarbon (HC), and nitrogen oxide (NOx) emissions are measured. The results show that BSFC decreased while BTE increased for a fuel blends containing 20% bioethanol at 3500 rpm engine speed, with each maximum value of 246.93 g/kWh and 36.28%. It is also found that CO and HC emissions are lower for the sorghum seeds bioethanol-pertalite blends. Based on the research results, it can be concluded that the sorghum seeds bioethanol-pertalite blends can improve engine performance and reduce exhaust gas emissions. Keywords: bioethanol; pertalite; performance engine; exhaust gas emission; alternatif fuel.

Uji Komparasi Volume Mesin Bakar Terhadap Bahan Bakar Yang Digunakan

“…S. Putra et al, 2013;H. S. Putra, 2018;Sebayang et al, 2020) telah dibahas secara luas oleh berbagai peneliti.…”

Pengaruh Nilai Ron Pada Bahan Bakar Jenis Bensin Terhadap Emisi Gas Buang

“…Bahan bakar jenis premium memiliki nilai oktan 88, pertalite 90, pertamax 92 dan pertamax turbo 98 (Wahyudi et al, 2021). Nilai oktan yang berbeda dipastikan menghasilkan performa dan emisi gas buang yang berbeda pula (Sebayang et al, 2020).…”

Analysis of Yamaha Scorpio Engine Performance with Variation of Ethanol Fuel and Shell V Power

“…Effect of addition of bioethanol on CO levels (%) [12] Research conducted [13] states that a significant increase in engine torque is a mixture of 10 and 15% ethanol with an increase of 0.89 Nm, while the best exhaust emissions are a mixture of 15% ethanol. Mixing Pertalite and Bioethanol from Sorghum seeds also increases engine performance and reduces exhaust emissions that produce air pollution [14]. Fuel quality is measured by RON (Research Octane Number), where the higher the octane value, the better the fuel quality.…”