Abstract
To reduce emissions caused by SI engines, gasoline-ethanol blends (bioethanol) represents not only an alternative as well as an immediate response to current and future policies related to reducing pollution [10]. There are numerous scientific studies have shown that bioethanol-gasoline blends has several disadvantages. Functional parameters such as engine power, torque and BSFC are much inferior to the use of gasoline (in particular the use of fuel blends containing a higher volume of bioethanol 20%). One way to reduce these major drawbacks is the conditioning (reforming) of biofuels by external energy intake [6] in the form of direct ultrasonic irradiation, which represents an original approach in the biofuels research domain. The paper presents the experimental results and data’s obtained studying the influence of ultrasonic irradiation process on BE5-BE20 bioethanol-gasoline blends, to improve the energetic possibilities of biofuels and can be use in a great proportion as blended fuel with fossil fuels. To determine the influence of external energy on functional parameters of a spark ignition (SI) engine fueled with gasoline and ethanol blends was use an experimental stand equipped, developed and adjusted in accordance with the methodology of research in the field. Parameters considered in carrying out the experimental research are effective power, effective engine torque and brake specific fuel consumption.
Keywords: Ultrasonic Irradiation, Bioethanol, SI engine, Power, Torque, BSFC