Combustion Performance of n-butanol, Hydrous Ethanol and Their Blends as Potential Surrogates for the Brazilian Gasoline
Concerns about global warming, pollutant emissions and energy security have driven research towards cleaner and more environmentally friendly fuels. In the same way as ethanol, butanol is a promising biofuel but with different characteristics such as higher calorific value and lower latent heat of vaporization. It has similar properties to those of gasoline, which makes it a potential surrogate for this fossil fuel. Therefore, the present study proposes a comparison among four different fuels i.e. n-butanol, n-butanol and ethanol blend (B73E27), gasoline and ethanol blend (G73E27), and hydrous ethanol. A single cylinder naturally aspirated research engine with port fuel injection was employed. Engine performance was experimentally evaluated and combustion parameters were determined through reverse calculation based on acquired intake, exhaust and in-cylinder pressure on GT-Power.