TRENDS IN THE USE OF NEW TYPES OF FUELS FOR THE FOUR-STROKE ENGINES

Gabriel-Marius CIOROIU, Ana-Maria SURUGIU, Doinița-Roxana TÎRPAN, Liviu-Constantin STAN

Abstract


Concerns over limited petroleum reserves, geopolitical instability in oil-producing countries and the effects of fossil fuel emissions over the environment have influenced the development of commercial gasoline blended with biofuels for four-stroke engines. Bioalcohols are fuels obtained from biomass and they contain C, H and O atoms in their molecules. In this paper, a comparative study was conducted between bioethanol and a blend of gasoline (90%) with bioethanol (10%), trying to understand where the quality differences come from and how bioethanol can influence te final quality of the formulated commercial product. Further, physicochemical analyses like density, viscosity, vapor pressure were performed for the products. Currently, the percentage of bioethanol added to gasoline is reconsidered for ecological reasons.


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