Effect of Diesel-Biodiesel blends on mixture properties

Renewable energies are essential for the reduction of greenhouse gas emissions and sustainable development goals achievement. Biodiesel from waste vegetable oils is a promising alternative to fossil diesel. Several researchers show that increasing biodiesel percentages from 0% to 100% can affect the mixture properties such as density, viscosity, pH, humidity, cetane number, low heating value, etc and it can also reduce HC, CO, and PM emissions while increasing NOx emissions. The main objective of this work is to study the effect of adding percentages of soybean biodiesel in fossil diesel (B5 to B80) on some properties such as density, viscosity and cetane number. The results showed that the studied blends met the standards for considered properties, except for the viscosity at high percentage of biodiesel, also the results showed that mixing biodiesel up to an optimal value of around 45% with Algerian diesel is recommended to ensure the respect of norms for density, viscosity and cetane number.