Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Experimental characterization of automotive ethanol commercially available in Brazil.
Submission Author:
Fabio Bongoski , SC
Co-Authors:
Fabio Bongoski, Roberto Wolf Francisco Jr.
Presenter: Fabio Bongoski
doi://10.26678/ABCM.COBEM2023.COB2023-1598
Abstract
Petroleum-derived fuels are energy sources used worldwide, but current levels of consumption have negative consequences due to the power of environmental pollution. In this context, an alternative to the use of gasoline is bioethanol, a fuel that is attractive because it comes from a renewable source, favors sustainability and has a high octane value. Several aspects must be analyzed to characterize a fuel, in this work we approach the adiabatic laminar flame velocity, apparent global activation energy and higher heating value. These characteristics are defined by the physicochemical properties of the fuel, which depend on factors such as its composition, pressure, temperature and equivalence ratio. The objective of the present study is to characterize the ethanol fuel sold in Brazil, firstly in the analytical condition (anhydrous) with a minimum content of 99.3% of the ethanol mass, and later, an analysis of the automotive ethanol sold at gas stations. The greatest variation in the composition of the analyzed fuels is found in the amount of water, and it is possible to perceive that the adiabatic laminar flame velocity and the higher heating value of the automotive ethanol samples present significantly lower results, as well as the apparent global activation energy showing higher values when compared to the analytical fuel. These characteristics are fundamental for the design of combustion systems and the development of chemical kinetic mechanisms for the analysis and use of bioethanol.
Keywords
Bioethanol, adiabatic laminar flame velocity, apparent global activation energy, flat flame
