Experimental study and simulation of the performance in an internal combustion engine fueled with diesel and ethanol. / Estudo experimental e simulação termodinâmica de desempenho em um motor de combustão interna operando com óleo diesel e etanol.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Due to a huge necessity to use alternatives fuels, this study presents an experimental performance investigation and its thermodynamics simulation (zero-dimensional) of an ignition engine Diesel cycle working with ethanol and Diesel. First of all some definitions and concepts related to internal combustion engines are given. Following this, an explanation of the problem and the aims are exposed; after that the dynamometer data have been presented and compared with engine simulation carried out with Chemkin®. From the dynamometer data, characteristics performance curves for both fuels can be highlighted. The applied methodology and technical modifications are also presented. All changes proposed in the engine are based on commercial components. To facilitate the mixture ignition into the combustion chamber, the glow plugs principle was used. Dynamometer tests were carried out according to norms NBR ISO 1585. Fuel consumption, chamber pressure and temperatures were also acquired. From these data combustion pressure for both fuels are compared. The experimental pressure is compared also to the results obtained with the thermodynamics simulation. The present results show the possibility of interchangeability between the ethanol and diesel in a compression ignition engines.

ASSUNTO(S)

motor ciclo diesel diesel engines heat release ratio liberação de calor no ciclo diesel ciclo diesel utilizando álcool como combustível diesel engine working with ethanol

ACESSO AO ARTIGO

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