The effect of synthesis gas on internal combustion engine performance

Various biomass sources are directly converted into gas products with the gasification process, which is one of the biomass conversion methods, that can be used. Synthesis gas which is obtained as a result of gasification process, is used as fuel in heat and power systems. In this thesis, it is aimed to investigate engine efficiency and exhaust emissions by using synthesis gas obtained from gasification of pine sawdust and waste engine oil in internal combustion gas engine. Before the experiments the moisture, ash, volatile solids, constant carbon content and elemental analysis of pine sawdust and waste engine oil were performed. As a result of experiments, the content and calorific value of the synthesis gas were determined. Emission analysis of the internal combustion gas engine fed by the synthesis gas produced was conducted for determining gas concentrations in exhaust gas and engine combustion efficiency. The amount of synthesis gas consumed by the engine at 5kWe load was determined as 4.5 m³ / hour and the maximum efficiency at full load was calculated as 27%.15 hours of continuous operation, no significant problems were observed in engine parts and plugs. It has been concluded, that small power systems can be used for electricity generation, especially in rural areas