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Investigation of N-Butanol Blending with Gasoline using a 1-D Engine Model

Increasing demand and limited reserves for fossil fuel together with carbon emissions regulations have led to producing sustainable fuels made from renewable materials. In recent years, the focus has been on using biofuels as alternate energy sources. Blending bio-fuels with gasoline is one of the methods to be considered under the search for a new source of energy. Alcohols are an important category of bio-fuels. Butanol can be an alternative fuel since it is a liquid and has several physical and chemical properties similar to those of gasoline fuels. Butanol don’t have many of the drawback associated with ethanol. Butanol has also a higher molecular weight than ethanol, and therefore, has reduced vapour pressure, lower water solubility, and higher energy density. That is why this study is aimed to develop the 1-D model of a PFI (Port Fuel Injection) engine for predicting the effect of various blends of butanol and gasoline on engine performances and fuel consumption. AVL Boost was used as a simulation tool to analyze the performance and emissions for different blends of n-butanol and gasoline by volume (n-B0, n-B5, n-B10, n-B20, n-B30, n-B50 and n-B85).