Pollution Research Paper

EXPERIMENTAL INVESTIGATION ON THE PERFORMANCE, EMISSION AND COMBUSTION CHARACTERISTICS OF DI-DIESEL ENGINE USING DIESEL - ETHANOL BLENDS AND AQUEOUS ALUMINUM OXIDE NANOFLUIDS AS ADDITIVE

P. RAVICHANDRA GANESH AND K. HEMACHANDRA REDDY

Abstract

This research paper presents an experimental investigation to evaluate the performance and emission characteristics of a Direct Injection diesel (DI-diesel) engine using diesel, ethanol, and aqueous aluminium oxide nanoparticles (AAONF) as additive with span80 (surfactant) at different load conditions. The fuel blends are prepared using ultrasonic sonicator. The first fluid(D93+E5+S2) blend consist of i) diesel 93% ii) ethanol 5% iii) surfactant 2%, the second (D88+E10+S2) blend consist of i) diesel 88% ii) ethanol10 % iii) surfactant 2%, and the third blend (D83+E15+S2) consist of i) diesel 83% ii) ethanol 15% iii) surfactant 2% further the selected blend is supplemented with 50 and 75 ppm aqueous aluminium oxide nanofluid as (AAONP50) and (AAONP75). From the analysis it is observed that the third blend i.e. (D83+E15+S2) gives optimum performance, emission and combustion. Further (D83+E15+S2) blend is supplemented with AAONP50 and AAONP75, and the results are compared with diesel fuel. It is found that when the engine runs with AAONP the brake thermal efficiency increases and specific fuel consumption decreases. At full load of the engine for the blend supplemented with AAONP75 the exhaust gas emissions like carbon monoxide, hydro carbon, smoke emission decreases and the nitrogen oxide emissions are comparable with diesel fuel. The cylinder pressure and heat release rates are higher for AAONP75 supplemented blend as compared to diesel fuel due to complete combustion of the fuel with oxygen enrichment. However for the AAONP50 supplemented blend there is only a slight increment of cylinder pressure and heat release rate.