| dc.description.abstract | In this study investigated both experimentally and numerically in detail the combustion characteristics
of a diesel engine operating with biodiesel fuel produced from fig seed oil at full load and different
speeds. The biodiesel was subsequently blended with diesel fuel in different blend ratios of 5%, 10% and
20% by volume of biodiesel. AVL Fire software was used in numerical study. The results showed that it
was confirmed that the numerical model is consistent. Heat release rate, p-V diagram, charge change
process, mass fraction burned, cyclic differences, burning duration, turbulence velocity distribution
and mixture formation were evaluated. Experimental results showed that when biodiesel fuel blends
were used, the in-cylinder pressure and heat release rate increased. In addition, the pumping loss was
slightly improved. Maximum heat release rates of diesel, 5%, 10% and 20% biodiesel blended are 30.17
J/◦, 32.2 J/◦, 35.25 J/◦ and 34.23 J/◦, respectively at 2000 rpm. It could be said that biodiesel blended
fuels burn faster and burn more fuel in mass than diesel fuel. Mass fraction burned of diesel, 5%, 10%
and 20% biodiesel blended are 0.32%, 0.51%, 1.04%, and 0.78%, respectively at 2000 rpm and TDC. As a result, B10 fuel increases the combustion quality and this is the recommended blending ratio for fig
seed oil biodiesel and diesel. | tr |
