COMBUSTION CHARACTERISTICS OF DUAL FUEL ENGINE FUELED WITH HIGH-HEAT VALUE SYNGAS

Abstract

Syngas from refuse-derived fuel gasification is a potential fuel for use in heat engines. In this research, Ansys Fluent 2021R1 software was used to study the influence of the content of oxygen in the oxidant on the quality of syngas obtained from refuse-derived fuel wood gasifier, the fuel supply and combustion of dual fuel engine converted from Vikyno RV165 diesel engine. The heat value of syngas from refuse-derived fuel gasification can be improved by using oxygen-enriched air as oxidant. The total mass compositions of combustible gases in the syngas is 35%, 41%, 54% and 66%, respectively, when the air oxidant is enriched by 0%, 10%, 30% and 50% oxygen. Compared to diesel operating mode, the power reduction of dual fuel engine fueled with these syngas is 32.30%, 22.65%, 10.96% and 5.40%, respectively. It is possible to approximate characteristics parameters of the combustion process concentration of the dual fuel syngas engine increasing linearly according to the content of oxygen enriched air supplied to the biomass refuse-derived fuel gasifier. The results of this research as a basis for the widespread use of syngas in heat engines.