Abstract
The present work investigated the effect of three nanofluid additives in pure neem biodiesel (PNB)—eucalyptus oil (EO)-water (W)-surfactant (S) emulsion fuel samples in diesel engine to study performance and emissions parameters. Fuel samples were prepared using 79% PNB +15%EO +4%W +2%S and dosing 60 mg ZO, CEO and CNT nanoparticles separately using magnetic stirrer followed by ultrasonication. The fuel properties like calorific value, flash point density and cetane number were tested for all samples. Experimental results have shown reduction in NOx, CO, HC and smoke opacity emission with addition of nanofluid additives. Brake thermal efficiency was enhanced using nanofluid additives, and slight reduction of fuel consumption was obtained. However, CO2 was increased which can be compensated by planting neem trees for production of biodiesel feedstock.
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