Performance Analysis of a Spark Ignited Engine Running on Different Water-in-Ethanol Mixtures

Lanzanova, Thompson; Vielmo, Horácio A.; Sari, Rafael Lago; Dornelles, Henrique M.; Tatsch, Gabriel Azevedo; Martins, Mario; Michels, Leandro

doi:10.4271/2013-36-0202

Cited by 11 publications

(12 citation statements)

References 12 publications

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“…Furthermore, the increased water content in ethanol fuel blends used in SI engines increases the engine torque [79], and that maximum torque and maximum power are obtained for an optimal water content of 30%. In addition, the engine thermal efficiency under MBT condition was also obtained using a water content of 30% [76,78]. Finally, Lanzanova et al [78] and Ambros et al [77] found that for SI engine, running at MBT timing decreases SFC for hydrous ethanol.…”

Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 98%

“…The increase in water percentage (5%-30% by volume) in ethanol allow one to work with advanced ignition points, aiming maximum brake torque condition lead to increases the cylinder pressure [77][78][79]. Moreover, any water addition beyond this 30% content had an adverse effect on engine combustion [9,77,78], attributed to the ethanol molecules being trapped in the large cavities within the water structure and decreases in the laminar burning velocities with increased water content in ethanol. Finally, at fixed ignition timing setting conditions, the increased water content in ethanol fuel blends decreases the cylinder pressure [68,77], and combustion duration [68,79].…”

Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 99%

“…Effect of increased water content in ethanol on the brake thermal efficiency and brake specific fuel consumption. Reprinted with permission from Reference [78]. Copyright (2013) SAE International.…”

Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 99%

“…The authors also found that the specific fuel consumption decreased with an increase in the water content in ethanol. Furthermore, Lanzanova et al [78] investigated the effect of water content (5% to 40% by volume)-ethanol blends in an Otto engine at maximum brake torque. The results revealed that the in-cylinder pressure was enhanced with the increase in water content in ethanol.…”

Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 99%

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Spark Ignition Engine Combustion, Performance and Emission Products from Hydrous Ethanol and Its Blends with Gasoline

et al. 2016

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This paper reviews the serviceability of hydrous ethanol as a clean, cheap and green renewable substitute fuel for spark ignition engines and discusses the comparative chemical and physical properties of hydrous ethanol and gasoline fuels. The significant differences in the properties of hydrous ethanol and gasoline fuels are sufficient to create a significant change during the combustion phase of engine operation and consequently affect the performance of spark-ignition (SI) engines. The stability of ethanol-gasoline-water blends is also discussed. Furthermore, the effects of hydrous ethanol, and its blends with gasoline fuel on SI engine combustion characteristics, cycle-to-cycle variations, engine performance parameters, and emission characteristics have been highlighted. Higher water solubility in ethanol-gasoline blends may be obviously useful and suitable; nevertheless, the continuous ability of water to remain soluble in the blend is significantly affected by temperature. Nearly all published engine experimental results showed a significant improvement in combustion characteristics and enhanced engine performance for the use of hydrous ethanol as fuel. Moreover, carbon monoxide and oxides of nitrogen emissions were also significantly decreased. It is also worth pointing out that unburned hydrocarbon and carbon dioxide emissions were also reduced for the use of hydrous ethanol. However, unregulated emissions such as acetaldehyde and formaldehyde were significantly increased.

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Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 98%

Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 99%

Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 99%

Section: Combustion and Performance Of Ethanol Fuel With Different Wamentioning

confidence: 99%

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Spark Ignition Engine Combustion, Performance and Emission Products from Hydrous Ethanol and Its Blends with Gasoline

et al. 2016

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“…Many empirical reports have investigated the appropriateness of alcohols in general [7][8][9][10] and hydrous ethanol in particular as fuels for internal combustion engines. Readers may refer to our review paper for further details [3], which concludes, as briefly discussed here, that mixing hydrous ethanol in gasoline yields an increase in combustion efficiency [11,12], cylinder pressure [11,[13][14][15], heat release rate [13], engine torque [12,[16][17][18][19][20], engine power [11,12,[16][17][18][19][20], engine thermal efficiency [12,17,18,21,22], brake mean effective pressure [11,17,18,23], and fuel consumption [11,16,17,19,20]. On the other hand, it decreases nitrogen oxide (NOx) emissions [11,12,14,22,[24][25]…”

Section: Introductionmentioning

confidence: 99%

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

et al. 2017

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Abstract:The industrialization that increases day by day needs more and more power/fuel sources that are commonly available, abundant, renewable, and environmentally friendly. Recently, nearly all of the cities in China (PRC) have been influenced by haze. However, the pollutants from automobiles have always been seriously considered to be the main contamination causes of the haze and that influence human health. This study concerns the impact of hydrous ethanol on in-cylinder pressure, particulate matter (PM), and gaseous emissions (oxides of nitrogen (NO x ) and unburned hydrocarbon (HC)) from a port fuel injection (PFI) gasoline engine. Tests were conducted on a four-cylinder port injection gasoline engine at different engine loads at an engine speed of 2000 rev/min for commercial gasoline, hydrous ethanol-gasoline blends (10% and 20% hydrous ethanol by volume), and an anhydrous ethanol-gasoline blend (20% anhydrous ethanol by volume). The results show that the peak in-cylinder pressure with the use of gasoline was the highest compared with the hydrous ethanol and anhydrous ethanol blends. Compared with the anhydrous ethanol blend, the hydrous ethanol blends performed well at a high load condition, equivalent to a low load. In addition, the total particulate number (PN) declines with an increase in engine operating loads for all of the fuels tested. The outcome of this study is an important reduction in PM number, mass emissions, and mean diameters of particles as the use of hydrous ethanol blends increases, while the form of the particulate size distribution remains the same. Furthermore, the NO x emission is raised with a rise in engine load, and NO x and HC emissions are reduced with the use of hydrous ethanol and anhydrous ethanol blend as equated with pure gasoline. Moreover, the correlation between the total particle number against NO x and HC has been found; the number of particles increases when the NO x emission decreases, and the opposite trend is exhibited for the HC emission. Therefore, it can be concluded that hydrous ethanol blends look to be a good selection for PM, NO x , and HC reduction for gasoline engines.

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Performance and economic analysis of a direct injection spark ignition engine fueled with wet ethanol

2016

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Performance Analysis of a Spark Ignited Engine Running on Different Water-in-Ethanol Mixtures

Cited by 11 publications

References 12 publications

Spark Ignition Engine Combustion, Performance and Emission Products from Hydrous Ethanol and Its Blends with Gasoline

Spark Ignition Engine Combustion, Performance and Emission Products from Hydrous Ethanol and Its Blends with Gasoline

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

Performance and economic analysis of a direct injection spark ignition engine fueled with wet ethanol

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