CO2 Emissions from the Combustion of Diesel Oil Compared to Ethanol in Motor-Generator Set Engines Jorge Luiz Januario, Aldo Ramos Santos, Patrícia Aparecida dos Santos Januario

Abstract

The aim of this article is to compare the emission of greenhouse gases when burning diesel and ethanol. Due to the lack of equipment for Otto cycle combustion engines, in order to carry out empirical tests with ethanol, the research will be demonstrated by stoichiometric calculations and by comparing the CO₂ emissions per hour released into the atmosphere. Society needs to change its behavior and make every effort to find cleaner alternatives to replace fossil fuels in internal combustion engines in order to meet the ABNT NBR ISO 14064, standards and the zero carbon policy, as well as noting that this goal is also one of the 17 UN guidelines for 2030 in the fight to reduce greenhouse gases regulated by the Kyoto protocol[4]. In view of the current global situation, it is necessary to study new devices, alternatives and techniques for reducing and even removing these greenhouse gases from the atmosphere, in order to contribute to humanity. Local electricity generation using diesel engines is more widely used due to their high thermal efficiency and robustness compared to spark ignition engines. These systems prove to be more polluting, generating high levels of nitrogen oxide (NOx) emissions, as well as particulate matter, causing high levels of toxic gas emissions and consequently polluting the environment. In this context, the research aims to combine stoichiometric calculations in the technical analysis to justify the conversion or replacement of these diesel engines to run on ethanol. For the state of the art, stoichiometric models were used to analyze the replacement of diesel fuel with ethanol, and to compare the emission of these pollutants.