Performance, exhaust emission, and wear behavior of a direct-injection engine using biodiesel from Yang-Na (Dipterocarpus Alatus) oleoresins

Abstract

Alternative plant-based fuels are becoming increasingly significant as fossil fuel reserves are depleted. Yang-Na (Dipterocarpus Alatus) is one of the sources of such fuels. This study tested the performance and emission rates of a diesel engine using different mixtures of biodiesel from crude and distilled Yang-Na blends compared with standard diesel fuel. This study was conducted in an experimental-descriptive manner using several mixing ratios from 0% to 50%. The measured parameters were the torque, brake power, specific fuel consumption, exhaust gas emission, and engine wear behavior. The experimental results showed that biodiesel from crude and distilled Yang-Na can be used in unmodified conventional diesel engines with maximum contents of 20% (DC20) and 30% (DD30). The performance parameters and wear behaviors of DC20 and DD30 were observed to be very close to those of fossil-based diesel fuels. The emission analysis showed that both DC20 and DD30 biofuels emitted less CO2 than fossil-based diesel fuel, although with higher CO and NOx emissions relative to pure diesel fuel.

Keywords

• Performance
• Emissions
• Wear
• Biodiesel
• Yang-Na oil
• Dipterocarpus Alatus