Browse Publications Technical Papers 2019-28-0081

Characteristic Investigation on Di Diesel Engine With Nanoparticles as an Additive in Biodiesel 2019-28-0081

In this experimental investigation, the performance, combustion and emission characteristics of a single cylinder direct injection (DI) diesel engine are analyzed using various biodiesel blends such as B10, B20, B30, B10A30, B20A30 and B30A30 respectively. The alumina (Al2O3) nanoparticles of 30 ppm are mixed with the various prepared fuel blends by using an ultrasonicator which would help to fetch a uniform suspension of nanoparticles over the blend fuel. The prepared samples of biodiesel were tested for its chemical composition by using GCMS method. SEM analysis and X-ray diffraction have been done for the alumina nanoparticles to test the size of the particles that are blended to the biodiesel blends. The chemical reactivity and rate of mixing are better though the characteristics of nanoparticles exhibit high surface area/volume ratio during the combustion, which ultimately results in good performance and emission characteristics in the diesel engine. Among the test fuels, B10A30 shows better performance both in terms of efficiency and emissions such as HC, CO, NOx and Smoke. The brake thermal efficiency for the fuel B10A30 was significantly improved by 11.5 % when it is compared to the fuel B100. The HC emission is decreased by 40 %, CO emission reduced by 65 %, NOx emission decreased by 31 % and smoke emission reduced by 39 % when it is compared to the pure biodiesel (B100). It is seen clearly that the blending of biodiesel at varying proportions in the diesel fuel has increased the performance and reduced HC, CO and smoke emission owing to the increase in NOx emission due to better combustion characteristics. From this investigation, the addition of alumina nanoparticles has improved the combustion quality showing better performance and shown reduced NOx, HC, CO and smoke when compared to the neat diesel and neat biodiesel fuels.


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