Comparative study on the use of oxigenated additive at low grade bioethanol for spark ignition engine

The limitation of fossil fuel resources and the increasing of fuel needs has encouraged the effort to develop mew and renewable energy. One of the alternatives that has been in the progress of continuous development is biomass energy. Previous research had already studied the influence of mixing gasoline with low grade bioethanol at volume percentage 5%, 10%, and 15%. The obtained parameter are brake horsepower (BHP), torque, and specific fuel consumption (SFC). This recent study was conducted at composition ratio of gasoline and bioethanol number E10, with 100% throttle valve opening. The engine speed was varied at 4000 rpm, 6000 rpm, and 8500 rpm. Oxygenated additive used was cyclohexanol and cyclooctanol at ratio of volume 0.5% for each fuel mixture. As a further study of its previous series of research, this paper is expected to be able to answer the question whether the oxygenated additive would gave significant effect on the performance and emissions characteristic of spark ignition (SI) engine.