Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
STUDY OF EMISSIONS IN COMBUSTION SIMULATION OF OXYGENATED FUEL MIXTURES
Submission Author:
Deliene Costa Guimarães Barros , MG
Co-Authors:
Deliene Costa Guimarães Barros, Sergio Hanriot, Rogério Jorge Amorim
Presenter: Deliene Costa Guimarães Barros
doi://10.26678/ABCM.COBEM2021.COB2021-1673
Abstract
Renewable fuels are used in Internal Combustion Engines (ICE) as a way of solving economic and environmental issues. Biofuels, such as biodiesel and ethanol, pure or mixed with gasoline and diesel, have attracted several types of research since the burning of fossil fuels generates emissions of polluting gases, which have worrying consequences for the environment. The objective of this work is to simulate an internal combustion engine using mixtures of oxygenated fuels, diesel, biodiesel, and ethanol in the AVL Boost software, analyzing pollutant emissions of these blends. For this, a Fractal combustion model was developed based on data from the software, provided as an example, and from articles that model the use of internal combustion engines. Based on the AVL Boost fuel properties data and adding information of a generic biofuel, NOx, CO, and HC emission results were analyzed for different percentage amounts of fuels. For all simulations, the same physical configuration of the engine was maintained, changing only the amount of diesel, biodiesel, and ethanol in the fuel. Simulations were made for these three pure fuels; mixtures of diesel and ethanol (DE); diesel and biodiesel (DB) and finally, mixtures of the three fuels (DBE), considering D85B15 (15% biodiesel in diesel) were tested. The simulating results are in accordance with the literature, and it was observed that with increasing biodiesel concentration in the mixture, early ignition occurred, decreasing HC and CO levels, while NOx formation increased. However, adding ethanol to pure diesel or D85B15 blend increased ignition delay and reduced the emission of all pollutants.
Keywords
Engine simulation, Fuel mixture, Diesel, biodiesel, ethanol, emissions
