Abstract:

Calophyllum inophyllum biodiesel blends with TiO2 nanoadditive and exhaust gas recirculation (EGR) were tested experimentally to determine their effects on the efficiency and emissions of a single-cylinder diesel engine. Blending 20% Calophyllum Inophyllum biodiesel with 80% diesel (B20) was used to generate the biodiesel-diesel blend. To make the B2040TiO2 fuel sample, 40 parts per million (ppm) of TiO2 nanoparticles were mixed with a B20 fuel. At various RPMs and loads, a diesel engine was subjected to testing utilising fuel samples of B20, B2040TiO2, B20 + 20%EGR, and B2040TiO2 + 20% EGR. Under full load conditions, the brake thermal efficiency of B2040TiO2, B2040 TiO2 + 20%EGR, and B20 + 20% EGR fuels rose by 3.1%, 2.5%, and 1.8%, respectively. When compared to B20 fuel, CO and HC emissions were reduced when TiO2 nano particles were added, and increased when the EGR technique was used. At full load, the smoke emissions from the B20 + 20%EGR and B2040TiO2 + 20%EGR fuel samples were respectively 16.23% and 12% higher than those from the B20 fuel. When compared to B20 fuel, NOx emissions were reduced using the EGR method and enhanced using TiO2 nanoparticles in the bio- diesel mix. We find that the Calophyllum Inophyllum biodiesel blend (B20) improved engine performance and decreased emissions when treated with TiO2 nano particles with the EGR approach.