Experimental and numerical evaluation of combustion analysis of a DI diesel engine
Date
2021Metadata
Show full item recordAbstract
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.
Volume
7URI
https://reader.elsevier.com/reader/sd/pii/S2352484721007952?token=52DB95DD4BF728AFD39EBF33120DB959F1D6C5F4CD3787F7DCBFB0419B3CF52F25CCCAA06DB805D3525EF3F45DBFE7E6&originRegion=eu-west-1&originCreation=20220510131141https://hdl.handle.net/20.500.12418/12778