Increasing Flow Rates of Air and Coconut Shell Producer Gas Mixed with PME20 for a Diesel Engine Generator

The aims of lowering the exhaust emissions and improving the engine performance of diesel and producer gas (PG) dual fuel engine have been continuously developed. Diesel blended with 20% palm oil methyl ester (PME20) is examined as an alternative fuel to replace conventional diesel. In this research study, a generator-loaded non-modified diesel engine fueled by PME20 pre-mixed with PG with the air flow rates increasing from 8.92 to 16.21 kg/h was examined. They were investigated at 3000 rpm under load variation, compared with PME20 and regular diesel. PG was generated by a downdraft gasifier by coconut shell and was added by 9.74 kg/h to replace PME20 injection. As a result, PME20 mixed with the high PG flow rate led to the reduction of engine performance and the escalation of exhaust emissions, except nitrogen oxide, compared with PME20 and regular diesel. The increase of air flow rates blending with PG resulted in the improvement of engine performance and the abatement of exhaust emissions, rather than the PG mixed with limiting air. PME20 saving was improved by 51% over the non-modified engine.