Effect of Metalloid Compound and Bio-Solution Additives on Biodiesel Engine Performance and Exhaust Emissions

The purpose of this study is to perform comparative analysis of the effect of the different fuel additives as polymer based-bio-solution, natural organic based-bio-solution and nano-titanium metalloid (TiO 2 ) compound on the performance parameters and exhuast emissions of a pickup Diesel engine, operating on commercial Diesel fuel (D) and B5 palm biodiesel (95 D+5% palm oil).The basic properties of the fuel blended with TiO 2 metalloid compound and bio-solution based additives were measured according to ASTM standard.Engine performance of a pickup diesel engine was investigated by testing on a chassis dynamometer with the simulation of road load condition.It was found that TiO 2 based-additive is more effective for improving engine power than pure Diesel and B5 fuels by 7.78 and 1.36%, respectively.Meanwhile, with using TiO 2 additive, the maximum engine torque on average increased by 1.01 and 1.53% in the wide range between 1,700 and 3,000 rpm as compared with Diesel and B5 fuels, respectively.The TiO 2 and natural organic additives is significantly effective on Diesel fuel for reducing brake specific fuel consumption reached by 13.22 and 10.01%, respectively as compared with pure Diesel.Moreover, the exhuast emissions (NO x , CO and CO 2 ) decreased from the engine using the TiO 2 additive in Diesel fuel and natural organic additive in Diesel fuel.