Improving productivity and reducing emissions of solarbiogas dual-fuel diesel engines

Abstract

Global energy needs continue to increase, which have been met by fossil fuels, resulting in significant environmental damage. Alternative energy such as biogas is an effective solution to reduce the use of fossil fuels because it has a high auto-ignition temperature (±650°C), making it suitable for use in engines with high compression ratios. This research aims to evaluate the effect of using biogas in dual-fuel diesel engines on performance and exhaust emissions. Experiments were carried out on diesel engines with single and dual-fuel, using variations in biogas flow rates of 3, 4, and 5 l/minute. The research results show that the use of biogas in dual-fuel engines produces higher torque and brake power values compared to single fuel at flow rates of 3 and 4 l/min. In addition, single-fuel diesel engine exhaust emissions show the highest values for CO (0.29%) and CO2 (5.67%), while dual-fuel engines produce CO (0.27%) and CO2 (5.51%). These findings show that biogas as a dual-fuel can improve engine performance while reducing harmful emissions, making it a sustainable energy alternative.