Abstract

ALI, Mehmood  and  RIND, Saqib Jamshed. ENGINE PERFORMANCE AND EMISSION ANALYSIS USING NEEM AND JATROPHA BLENDED BIODIÉSEL. La Granja [online]. 2020, vol.32, n.2, pp.19-29. ISSN 1390-8596.  https://doi.org/10.17163/lgr.n32.2020.02.

This paper presents the production of biodiésel from indigenous species of Jatropha curcas and Neem (Azadirachta indica) oils and its engine performance and emission characteristics of B10 blends measured at 1000 rpm. Biodiésel production yields were found 90% and 68% by weight from Jatropha curcas and Neem (Azadirachta indica) respectively. Three prepared biodiésel blends were 10% Neem biodiésel (NB10), 10% Jatropha biodiésel (JB10) and 5% Jatropha + 5% Neem biodiésels (NJB10). The engine emission test showed less carbon monoxide production from NB10 (94 ± 2.15 ppm), followed by JB10 (100 ± 2.44ppm) and NJB10 (121 ± 3.65ppm) as compared to diesel (135 ± 2.18ppm). However, the carbon dioxide emissions were found higher due to the better combustion characteristics of biodiésel ­­blends as NB10 (3.21%), JB10 (3.06 %) and NJB10 (2.53%) than diesel (2.13%) by volume. The reduced amounts of sulphur dioxide (SO2) emissions were found with blended biodiésel fuel in comparison to mineral diesel. Nitrogen dioxide (NO.) emissions were 5 ppm from diesel at 73.C exhaust temperature, while it was increased by using blended biodiésel, to 8 ppm with NB10 due to higher exhaust temperatures 85.33.C. The measured engine power and torque produced from the blended biodiésel samples were slightly lower than the conventional diesel by 12 % and 7.7 % respectively. The experimental results showed that an engine performance and emission characteristic of Neem biodiésel (NB10) was better as compared to other biodiésel blends.

Keywords : Biodiésel; Jatropha curcas; Neem (Azadirachta indica); Engine emissions; Engine performance.

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