Effect of some BED blends on the equivalence ratio, exhaust oxygen fraction and water and oil temperature of a diesel engine

► We measure and compare some BED blends' parameters in diesel engine. ► Also, increasing of the ethanol and biodiesel of blends cause to decrease equivalence ratio. ► Increasing the oxygen content of fuels decrease the equivalence ratio. ► On the combustion state, with increasing oxygen of fuel, percentage of water molecules increased. ► Increasing fuel-air ratio cause to improve combustion quality and increase oil and water temperature.