Emission examination on nanoparticle blended diesel in constant speed diesel engine

Abstract

This study investigates the emission behavior of diesel fuel by adding TiO₂ nanoparticles in four-stroke, single-cylinder, compression-ignition (CI) engine. This work is aimed at reducing the harmful tailpipe emissions from compression ignition engine when fueled with neat diesel. 50 and 100 ppm of TiO₂ nano additive were mixed with diesel using ultrasonicator. Addition of TiO₂ nano additive was aimed to enhance the burning properties of diesel and lower its tailpipe emissions. Experimental work concluded that the test fuels used in this study does not require any modification in engines. In addition, the combustion of fuels was smooth and there was no physical and visible damage in the engine components when fueled with base and modified fuels. It was found that by adding 50 and 100 PPM of TiO₂ nanoparticles to diesel, significant reduction in CO, HC, NO_x, and Smoke emissions were observed.

Keywords:

• CO
• diesel-engine
• HC
• nanoparticles
• titanium oxide