Effect of TiO2 Nanoparticle Blended Water Diesel Emulsion Fuel on CI Engine Performance and Emission Characteristics

Abstract

Environmental degradation due to increase in pollution is the serious problem in the front of whole world. This problem further deteriorates with the depletion of natural resources. In addition, the fight against the inflation in energy prices and the dependency on the foreign oil has intensified the efforts to develop alternative fuel. A number of alternative fuels (emulsions, biodiesels etc.) have already been discovered, but most of them are still in research and development sector. Due to the superior properties of nanofluids, many researchers have examined the impact of varies nanoparticles on the performance and emission characteristics of compression ignition engine but most of the current research have been focused solely on nanoparticles dispersed in diesel or biodiesel as base fluid. In the present work, the effect of titanium oxide nanoparticle blended water-diesel emulsion on the performance and emission characteristics of constant speed (1500 rpm) VCR diesel engine are studied. Water-diesel emulsions with 10% and 15% water by volume are used as a base fluid for the addition of 50 ppm and 70 ppm titanium oxide nanoparticles. All the prepared blends are examined at compression ratio 18 with varying loads and the obtained results of performance and emission are compared with that of conventional diesel. All the results are compared and it is concluded that the titanium oxide nanoparticle blended water diesel emulsion not only enhance the performance characteristics (brake power, brake specific fuel consumption, brake thermal efficiency) but also helps in the reduction of harmful emissions from compression ignition engines (unburned hydrocarbon, carbon monoxide).