Danh Chan Nguyen, Van Huong Dong, Quang Vinh Tran


Currently, 2,5-dimethylfuran (DMF) has shown that it is a potential alternative fuel source to replace the traditional
fuels such as gasoline and diesel. However, the combustion and emission properties of DMF have been rarely
characterized, especially the using of DMF-gasoline blends in SI engines. This article present how the fuel properties
and loads affected the combustion of DMF-gasoline blends in a four-cylinder SI engine using AVL-Boost simulation.
The simulation conditions were that the throttle valves opening at 75% and 100%, and speed from 1000 to 6000
rpm with the using blends is DMF10, DMF20, DMF30, DMF40 and DMF 50 (corresponding with the DMF ratio in
DMF-gasoline blends is 10%, 20%, 30%, 40% and 50%). The simulation result is that when adjusting the amount
of fuel supplied to a cycle of engine to ensure that λ=1(λ: relative Air to Fuel ratio) when we change the DMF fuel
ratio in the blends with gasoline in almost the same power and torque as pure gasoline without changing any
structure of the engine. In addition, to remains the engine power when using from DMF10 to DMF50, its need to be
increased the average amount of fuel to 9.27% compare to the pure gasoline over the full speed range of 1000÷6000

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