Technical Paper
Experimental evaluation of the emissions in an Otto cycle engine operating with hydrous and wet ethanol under different compression ratios
2018-09-03
2018-36-0277
The ethanol fuel sold in Brazil, which is seen as an option that represents less polluting gases emitted into the atmosphere, goes through a period where its economic viability does not compensate its use against the alternative coming from nonrenewable sources. It is known that part of the cost associated with commercial ethanol is due to its purification through distillation, which decreases the water percentage in the final composition. Aiming to evaluate alternatives to reduce the final cost of the fuel, a comparison was made between the burning results of hydrous ethanol, with up to 5% of water by volume, and the wet ethanol, with 30% water by volume, in an Otto cycle engine, operating with a fixed speed of 1800 RPM and seeking the maximum brake torque in each test.
