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ABSTRACT
Many recent studies show that 20% proportion of biodiesel–diesel blend (A20) can substantially reduce the hydrocarbon, carbon monoxide, and smoke emissions. However, there is a slight increase in oxides of nitrogen (NOx) emission for A20 than that of diesel and it is barrier to market expansion. The addition of antioxidant additives is the most effective method for mitigating the NOx emission. Hence, this present work aims to investigate the effect of antioxidant additives on NOx emission in an Annona biodiesel-operated diesel engine. The antioxidant additives such as p-phenylenediamine (PPDA), A-tocopheryl acetate, and L-ascorbic acid are used in the present investigation. It is evidently proved from the experimental investigation that use of antioxidant additive is effectively controlling the NOx emission in diesel engine. Result shows that 250 mg concentration of PPDA additive with A20 is optimum for NOx mitigation up to 25.7% when compared to that of diesel without any major modifications.
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Notes on contributors
Senthil Ramalingam
Senthil Ramalingam is a Professor in the University College of Engineering, Villupuram, Anna University Chennai, working in the fields of thermal science, alternative fuels, IC engine and pollution control. He has published research papers at various national and international journals, conference proceedings as well as books.
Pranesh Ganesan
Pranesh Ganesan is a PhD Research Scholar in the University College of Engineering, Villupuram, Anna University Chennai. His area of research interest is related to diesel engine emission control and biodiesel.
Elangovan Murugasan
Elangovan Murugasan is a PhD Research Scholar in the University College of Engineering, Villupuram, Anna University Chennai. His area of research interest is related to diesel engine emission control.