An experimental study on the performance and emission characteristics of CI engines using bio-oil blends from Moringaoleifera

Abstract

In the present research, a CI engine runs on waste moringaoleifera from drumstick seeds as a bio fuel, which replaces diesel by 25% and reduces the dependence on fossil fuels. Experimental analysis is done on the performance and emissions characteristics of a CI engine utilizing blends of Moringaoleifera bio-oil. Moringaoleifera seeds having higher oil content and calorific value. Moringaolifera leaves and pods are edible and have therapeutic and nutritional properties. This seed is obtained from early stages of drumstick which is small and spoiled ones and it is classified as non-edible and a potential source for replacement of diesel. This type of bio-oil has similar physiochemical properties of pure diesel. The result shows that B15 gives better brake thermal efficiency and B10 gives good volumetric efficiency during peak load condition. In comparison to pure diesel, the smoke density is almost eliminated and the NOx emission is decreased by 50% for B15 at maximum load. In order to replace fossil fuels, moringaoleifera bio-oil is directly combined with diesel up to 25%.