EFFECT OF SATURATED FATTY ACID COMPOSITION OF BIODIESEL ON OXIDES OF NITROGEN AND SMOKE EMISSIONS

Tamilselvan P. Sassykova L. Bhaskar K. Subramanian S. Gomathi K. Prabhahar M. Prakash S.
2023 University of Chemical Technology and Metallurgy

Journal of Chemical Technology and Metallurgy
2023 #58 Issue 1 167 - 177 pp.

This study examine the effect of saturated fatty acid content on compression ignition engine performance and emissions. Mixtures of saturated fatty acids with a content of 55 %, 65 %, and 75 % using diesel fuel were evaluated in comparison. For each mixture, different proportions of methyl esters of palm, coconut, neem, mahua, jatropha, and pongamia oil (PONOME) were mixed. At 55 % saturation, the density of fatty acids was 878 - 885, and at 65 % saturation - 869 - 879. At 75 % saturation with fatty acids, the density was 860 - 868. It was found that the viscosity at 65% saturation is 5.04 - 5.37, whereas at 55 % saturation it is 5.13 - 5.56, and at 75 % saturation the viscosity is 4.55 - 7.88. At 75 % saturation, a higher cetane number of 57 - 61 was found. The study showed that all eleven combinations of biodiesel are unique, have excellent fuel characteristics, and emit fewer toxic emissions. It was found that as the percentage of biodiesel saturation increased, NOx emissions decreased and smoke emissions increased.

Engines , Exhaust emissions , Fatty acid esters , Unsaturated double bonds

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School of Mechanical and Building Sciences, VIT-Chennai Campus, Chennai, 600048, India
Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, 71,al-Farabi ave., Almaty, 050040, Kazakhstan
Department of Automobile Engineering, Rajalakshmi Engineering college, Thandalam,Chennai, 602105, India
Department of Mechanical Engineering, Dr.M.G.R. Educational and Research Institute, Chennai, 600095, India
Department of Biotechnology, Dr.M.G.R. Educational and Research Institute, Chennai, 600095, India
Department of Mechanical Engineering, Aarupadai Veedu Institute of Technology, VMRF, Chennai, 603104, India

School of Mechanical and Building Sciences
Faculty of Chemistry and Chemical Technology
Department of Automobile Engineering
Department of Mechanical Engineering
Department of Biotechnology
Department of Mechanical Engineering

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