Experimental Investigation of Exhaust Emission Reduction in a CI Engine by Using Titanium Dioxide Nanoparticle-Blended Methyl-Esterified Neem Oil Biodiesel

This experimental work is attempted to analyze the effect of titanium dioxide (TiO2) blended into neem oil-based biodiesel mixture, and tested in CI engine. The experiment focuses on emission reduction along with performance enhancement of CI engine when powered with a bio fuel mixture into which a nanoparticle is blended in. Nanparticle TiO2, is mixed into the neem oil biodiesel (B20) in two quantities: one is 200 ppm and other is 400 ppm. The test fuels used are neat diesel, B20, B20 + 200 ppm TiO2, B20 + 400 ppm TiO2. The test fuel has gone through high speed blending and stabilized using ultrasonic bath stabilization. The major result expected from this experimental study was emission reduction particularly of CO, HC and it is found to be less. Obviously, due to use of biodiesel, the NOx emission is on the higher side compared to neat diesel fuel and addition of TiO2 has reduced NOx emission.