Emission analysis on cashew nut biofuel in compression-ignition engine

Abstract

In this present work, the impact of blending n-Pentanol, a next-generation bio fuel with cashew nut shell liquid (CNSL) biodiesel, on the performance of a diesel engine is examined. Tests were performed on a constant-speed compression-ignition engine using n-Pentanol/CNSL biodiesel blends. n-Pentanol was added to CNSL biodiesel by 5% and 10% by volume. Performance parameters such as break thermal efficiency (BTE), Brake-specific fuel consumption and Exhaust gas temperature (EGT) were analysed in this work. It was experimentally found that by adding n-Pentanol to neat CNSL biodiesel, significant reduction in viscosity was observed. In addition, BTE was increased by 0.8% due to improved atomisation of the blends. Further, brake-specific fuel and EGT were further reduced due to lower viscosity and improved combustion rate with addition of n-Pentanol to CNSL biodiesel. Emission parameters such as Hydro carbon (HC), Carbon monoxide, Nitrogen oxides (NOx) and Smoke emissions were examined at different load conditions. Addition of n-Pentanol as additive improves the rate of combustion, mixing and vaporisation of the blends with air and reduces the emissions associated with it. Components were observed during the trail.