Experimental analysis between performance parameters for an internal combustion engine fueled by gasoline and ethanol when submitted to engine block vibration.
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Date
2022
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Abstract
Ethanol and gasoline are widely used as fuels in Otto cycle engines. These fuels have diferent heating power and octane
numbers and the engine behaves diferently depending on the type of fuel used. The objective of this study is to measure,
compare and investigate the factors that afect the block vibration of an internal combustion engine, which uses ethanol or
gasoline as its fuel, as a function of shaft torque and shaft power engine, main efective pressure, advanced ignition, pressure
combustion engine and other parameters. The experiment consisted of instrumenting the side of the engine block with a triaxil accelerometer to measure the level of the vibration acceleration value of the engine running on a bench dynamometer,
while varying the engine speed under full load conditions. The results showed that the engine vibration level was infuenced
by engine speed, load, type of fuel and performance parameters of the engine. The highest level of vibration was noted in
the region of maximum torque and maximum pressure combustion. The combustion process is primarily responsible for
the highest level of vibration reached when using ethanol as a fuel. Under all operating conditions, the vibration level of the
engine block was highest when using ethanol. On average, the longitudinal, vertical and transverse engine vibration was 3%,
31% and 56% higher in the engine running on ethanol compared to the engine run on gasoline. This study holds relevance
as it correlates the longitudinal, vertical and transverse vibration level of the block of an internal combustion engine, as is
found in an engine combustion process fueled by ethanol and gasoline.
Description
Keywords
Internal combustion engine, Ethanol vibration engine, Gasoline vibration engine, Engine block vibration, Transverse block vibration
Citation
SANTANA, C. M.; BARROS, J. E. M.; ALMEIDA JUNIOR, H. A. de. Experimental analysis between performance parameters for an internal combustion engine fueled by gasoline and ethanol when submitted to engine block vibration. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 44, artigo 314, jul. 2022. Disponível em: <https://link.springer.com/article/10.1007/s40430-022-03607-7>. Acesso em: 03 maio 2023.