Article

Received 29.08.2023

Revised 30.11.2023

Accepted 27.12.2023

Retrieved from Vol. 27, No. 3, 2023

Pages 122 -140

Sosida, S., & Tsiuman, M. (2023). Study of the impact of ethanol-based fuel use on indicators, energy efficiency and environmental friendliness of a car engine. The National Transport University Bulletin, 27(3), 122-140. https://doi.org/10.33744/2308-6645-2023-3-57-122-140

Study of the impact of ethanol-based fuel use on indicators, energy efficiency and environmental friendliness of a car engine

Serhii Sosida Mykola Tsiuman

The article examines the influence of fuels containing ethanol additive on indicated performance, energy efficiency and environmental friendliness of the automobile engine. The object of the study is the effect of ethanol additive on the indicated performance, energy efficiency and environmental friendliness of the automobile engine. The purpose of the research is to assess the influence of the ethanol content in the fuel on the indicated performance, energy efficiency and environmental friendliness of a spark ignition automobile engine with exhaust gas catalytic conversion. Research methods are experimental methods and mathematical modeling. The results of processing engine indicated diagrams when using alcohol-containing fuel additives and the influence of fuel with different ethanol content on indicated performance, energy efficiency and environmental friendliness of the automobile engine are given. It is shown that using alcohol-containing gasoline can improve engine efficiency with an increase in absolute fuel consumption, as well as improve environmental performance. In particular, the use of E50 fuel leads to a certain decrease in the maximum pressure during combustion compared to the use of gasoline, however, when using E75 fuel, the maximum pressure is the same as when using gasoline. The use of fuel containing ethanol leads to a decrease in the maximum pressure and temperature of the cycle in the zone of low and partially medium load. In the zone of medium loads, the value of the maximum pressure practically does not differ from the type of fuel. The use of fuels with high ethanol content provides the same energy performance as when fueled with gasoline, however, this is achieved by a ratio of fuel parameters, efficiency of the work cycle, volumetric 140 efficiency and air excess coefficients that is different from gasoline. According to the results of the calculation of the harmful emissions, it can be established that when using fuels with a high ethanol content, CO emissions are significantly reduced (by 40...80%). At the same time, the CH emissions are slightly increasing as a result of the deterioration of their conversion efficiency. CO2 emissions are reduced by 4.5...15% when using fuels with a high ethanol content. The obtained results can be useful in the analysis of the efficiency of operation of vehicles during their fueling with alcohol-containing fuels

spark-ignition engine; ethanol; indicator indicators; energy efficiency; mass emissions of harmful substances
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https://doi.org/10.33744/2308-6645-2023-3-57-122-140