Research on hydrous ethanol stratified lean burn combustion in a DI spark-ignition engine

Costa, Roberto Berlini Rodrigues da; Filho, Fernando Antônio Rodrigues; Coronado, Christian Jeremi R.; Teixeira, Alysson Fernandes; Netto, Nilton Antonio Diniz

doi:10.1016/j.applthermaleng.2018.05.004

Cited by 38 publications

(9 citation statements)

References 45 publications

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“…The ethanol from sugarcane, main Brazilian biofuel, is a renewable option for the future of national vehicle fleet. Its sustainability is noteworthy because it is, in principle, CO 2 neutral, since the carbon dioxide released to the atmosphere is absorbed by the regrowth of the sugarcane [20,35]. Thus, the replacement of fossil fuels for ethanol would eliminate the net CO 2 emissions along its entire cycle.…”

Section: Brazilian Ethanolmentioning

confidence: 99%

The misleading total replacement of internal combustion engines by electric motors and a study of the Brazilian ethanol importance for the sustainable future of mobility: a review

Malaquias

Netto

Filho

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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The sustainable future of mobility should not be viewed as the burial of the internal combustion engine (ICE), nowadays the main source of vehicular propulsion. Even with the increasing electrification of the transport means, the low global percentage of the electric fleet, around 0.2% of the total road vehicles, associated with an annual growth rate of less than 60%, indicates that they will not significantly change the market share in the short-and medium-term periods. This means that fuel demanded by ICEs and pollutant emissions generated by them will be very relevant in the years to come. Thus, the search for significant advances in technology associated with the use of renewable fuels is very important for environmental and economic sustainability. In this regard, the present work intends to demonstrate that the association between Brazilian ethanol and advanced technology in ICEs is a promising alternative for a more sustainable global mobility in the future. For this purpose, some ethanol properties are presented to justify its relevance as an ideal biofuel for highly boosted and efficient engines. Then, environmental, social, ethical and economic impacts arising from electric vehicles are investigated, demystifying the zero-emission vehicle terminology attributed to them and, finally, new technologies for ICEs are presented, proving that they are constantly evolving and improving, which is fundamental to the future of the world automotive fleet.

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Section: Brazilian Ethanolmentioning

confidence: 99%

The misleading total replacement of internal combustion engines by electric motors and a study of the Brazilian ethanol importance for the sustainable future of mobility: a review

Malaquias

Netto

Filho

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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View full text Add to dashboard Cite

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“…There are also studies focusing on the performance of ethanol-fueled engines. Costa et al [17] investigated the combustion of hydrous ethanol in a SI engine, improving fuel consumption and conversion efficiency for a 1.4 theoretical air ratio, with reductions in NOx, total hydrocarbons (THC), and CO emissions. Lanzanova et al [18] evaluated the operation of a SI engine with direct injection of ethanol mixed with water (5-20% by volume), in which the higher content of water affected the rate of heat released, increasing the duration of combustion, reducing NOx emissions at the cost of higher UHC emissions.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle and Exergoenvironmental Analyses of Ethanol: Performance of a Flex-Fuel Spark-Ignition Engine at Wide-Open Throttle Conditions

2022

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The growth in the number of vehicles circulating has led to a proportional increase in polluting gas emissions. Bioenergy can be used to help meet these increasing energy demands and mitigate environmental impacts. This work verified the effect of the content of ethanol on the exergy and exergoenvironmental analyses of a spark-ignition engine. Different gasoline–ethanol mixtures were tested along with hydrous ethanol (4.6% water by volume). The thermodynamic data refer to wide-open throttle conditions and variable engine speeds. The life cycle assessment methodology quantified the environmental impacts associated with equipment and fuel using the Eco-indicator 99 method. Pollutants emitted during combustion were measured and included in the environmental assessment (nitrogen oxides, carbon monoxide, and dioxide). Hydrous ethanol at 1500 rpm presented the highest energy efficiency. The effects of the environmental impact rate of pollutant formation and exergy efficiency were significantly higher than the environmental impact rate of fuel. The lowest specific environmental impact of the product (brake power) was 24.39 mPt/MJ, obtained with the fuel blend with 50% ethanol at 2500 rpm. The combined evaluation of the exergoenvironmental factor and the relative difference in environmental impact indicated the optimization priorities and where improvements should be directed.

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“…It has been used as a fuel for SI engines from many years. Several studies showed a great benefit of using ethanol blends in SI engines due to its chemical and physical properties [14][15][16]. Ethanol is a colorless fuel characterized by high latent heat of vaporization which can decrease the fuel consumption, the high octane number and the high flame speed of ethanol can allow for a high compression ratio and a high combustion efficiency comparing to pure gasoline.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of alcohol blending effect on the performances of a single cylinder spark-ignition marine engine

GASSOUMI

Hamdi

BOUTAR

et al. 2021

International Journal of Automotive Science and Technology

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This work represents an experimental study on the performance of a single cylinder spark-ignition marine engine fueled by ethanol blends. Several studies have been carried out to investigate the use of alternative fuels in spark-ignition engines to improve their efficiency and reduce exhaust emissions. Experiments were conducted on DIDACTA-T85 engine test bed under full load condition with varied engine speed from 1000 rpm to 3000 rpm and an engine wall's temperature fixed between 75°C -85°C. This study showed that E20 conducted for the best result in specific fuel consumption without notable loss in engine performances in comparison with other blends.Experiments showed that ethanol blends are a viable option as a fuel alternative in sparkignition engines due to its potential to conserve for acceptable engine performances.

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Research on hydrous ethanol stratified lean burn combustion in a DI spark-ignition engine

Cited by 38 publications

References 45 publications

The misleading total replacement of internal combustion engines by electric motors and a study of the Brazilian ethanol importance for the sustainable future of mobility: a review

The misleading total replacement of internal combustion engines by electric motors and a study of the Brazilian ethanol importance for the sustainable future of mobility: a review

Life Cycle and Exergoenvironmental Analyses of Ethanol: Performance of a Flex-Fuel Spark-Ignition Engine at Wide-Open Throttle Conditions

Experimental investigation of alcohol blending effect on the performances of a single cylinder spark-ignition marine engine

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