Feasibility study of using wood pyrolysis oil-ethanol blended fuel with diesel pilot injection in a diesel engine

In this study, we examined the performance and emission characteristics of a dual-injection diesel engine fueled with diesel (pilot injection) and WPO-ethanol blended fuel (main injection) experimentally. Results showed that although stable engine operation was possible with dual injection, the indicated fuel conversion efficiency was slightly lower than that of diesel combustion. Regarding exhaust emissions, HC and CO emissions were slightly increased, while NOx and PM emissions were significantly decreased due to the high water content and oxygen content in the WPO-ethanol blended fuel.