Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
COMBUSTION IN A DUAL FUEL COMPRESSION IGNITION ENGINE DIESEL/ETHANOL: ANALYSIS OF THE WORK, HEAT RELEASE AND DURATION
Submission Author:
Josimar Souza Rosa , RS
Co-Authors:
Josimar Souza Rosa, Paulo Roberto Wander, Luiz Alberto Oliveira Rocha, Carlos Roberto Altafini, Giovani Dambros Telli
Presenter: Paulo Roberto Wander
doi://10.26678/ABCM.COBEM2019.COB2019-2457
Abstract
Nowadays, several renewable fuels have been tested as substitutes for diesel oil in compression ignition engines, ethanol being one of the best alternatives. In this regard, it is necessary to evaluate the performance, emissions and combustion parameters of these engines. Thus, the objective of this research was to evaluate the work produced, the accumulated heat release and the duration of the combustion in a dual-fuel compression ignition engine operating with diesel oil direct injected and ethanol by fumigation method. The engine used originally operated with diesel oil only and was adapted for operation with ethanol fumigation. By measuring the pressure inside the engine cylinder, it was possible to perform the post-processing of these data and obtain the values of the parameters that aimed the search. The results showed that the operation of the engine by the fumigation method was satisfactory, allowing a wide range of substitution of diesel oil for ethanol, even above that recommended by the literature. The total duration of combustion was reduced as well as the start of combustion was delayed, which may contribute to better engine performance compared to the original operating condition with diesel oil only.
Keywords
ethanol fumigation, compression ignition engine, Thermodynamic Cycle, heat release
