C204 Engine Performance and Emissions Study on Bio Fuel Using a Highly Boosted Single Cylinder Diesel Engine : Third Report: Reduction of NOx and PM by 50% EGR Rate

Abstract

Bio fuel is expected to solve the global warming because of carbon neutral. The authors have studied combustion characteristics by using RME and RME50 vol. % as Bio fuel with high boost charging system, high-pressure common rail injection system and wide range cooled EGR system in a single cylinder engine. In this report, using RME could reduce NOx and PM emissions due to raised up to 401.3kPa to 451.3kPa with charging boost pressure and from 40% to 50% with EGR rate at full load to the previous report. PM of RME50% showed lowest tendency in comparison with the RME and diesel fuel. Also revealed that installation of a DPF needs to clear the Japanese emission standards in the future.