WITHDRAWN: Effect of tertiary butyl hydroquinone on diesel engine performance fuelled with lemon grass oil

Abstract

Biodiesel is a biofuel that originates from renewable sources (oils and fats). It displays fuel properties similar to diesel Thus, biodiesel can be utilized in diesel cycle engines, without the need for adaptation. Many vegetable oils have been tested all over the world but due to high viscosity and market prices compared to diesel, these oils are not used commercially. But they can be blend with diesel to form biodiesel. In this study the lemongrass oil is blended with diesel in the ratio of 3:7. Further to study the impact of antioxidants namely, Propyl Gallate (PG) and tertiary butyl hydroquinone (TBHQ), have been added using a sonicator in different concentrations of 300 ppm, 600 ppm and 900 ppm to the biofuel. The samples were tested for its property, GC (gas chromatography) and tested for performance and emission in a VCR diesel engine and compared to diesel. The tests showed that antioxidants gave higher Brake thermal Efficiency (BTE) but lower SFC than diesel. The samples with antioxidants showed reduction in emission of Carbon monoxide (CO), Oxygen (O 2 ) and Hydrocarbon (HC). TBHQ showed reduction of Nitrous Oxide (NO X ). Overall except for NOx emissions PG performed better than TBHQ, hence PG is preferred over TBHQ.