Characteristics of LPG-diesel dual fuelled engine operated with rapeseed methyl ester and gas-to-liquid diesel fuels

▸ LPG-diesel dual fuelling showed good soot-NOx trade-off specifically at low engine load. ▸ Implementing EGR during LPG-diesel dual fuelling maintained combustion efficiency. ▸ LPG-GTL dual fuelling showed an improved soot-NOx trade-off compared to ULSD and RME. ▸ LPG-RME outperformed the other fuelling modes in terms of HC, CO and soot emissions. ▸ EGR application in LPG-RME reduces NOx emissions while maintaining soot benefits.