Progress in performance analysis of ethanol-gasoline blends on SI engine

Thakur, Amit Kumar; Kaviti, Ajay Kumar; Mehra, Roopesh Kumar; Mer, K. K. S.

doi:10.1016/j.rser.2016.11.056

Cited by 124 publications

(46 citation statements)

References 54 publications

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“…The most important reason of drop in bsfc values with alcohol addition is lower calorific value of ethanol and methanol than that of gasoline. Doğan et al [47],Phuangwongtrakul et al [48] and Thakur et al [49], in their studies, have also presented increasing of bsfc values due to low calorific value. Figure 7 show bte trends of test fuels.…”

Section: 1combustion Analyzesmentioning

confidence: 88%

A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

Örs¹,

Sayin²,

Ciniviz³

2020

International Journal of Automotive Science and Technology

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In this study, the availability of methanol instead of ethanol was investigated in terms of performance, emission and combustion characteristics. The experiments were conducted in a single cylinder, four-stroke SI engine for different engine speeds at full engine load. Test fuels were prepared by 10% ethanol and methanol addition into gasoline. According to the experimental results, while methanol addition increased bsfc values by 10.3% compared to ethanol addition, it caused a reduction to the bte values by 6.12%. The methanol addition fuel has shown similar combustion characteristics with ethanol addition fuel. Although the methanol addition decreased CO2, CO, HC and NOx emissions by 6.48%, 26.6%, 4.75% and 9.16% respectively compared to ethanol addition, it has higher oxygen emission values by 15.3% due to its higher oxygen content than ethanol. These results show that methanol can also use as an additive for gasoline like ethanol.

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Section: 1combustion Analyzesmentioning

confidence: 88%

A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

Örs¹,

Sayin²,

Ciniviz³

2020

International Journal of Automotive Science and Technology

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“…In spite of the benefits of ethanol properties as a fuel, gasoline-fueled vehicles have some advantages over ethyl alcohol ones, such as greater fuel mileage, fewer cold start issues and lower corrosive potential for engine components. Thus, the greater durability of engine materials makes the use of gasoline still preferred in the product development phase, although the aforementioned problems can be solved with the proper design of the engine for the operation with ethanol as fuel [17,22].…”

Section: Introductionmentioning

confidence: 99%

An evaluation of combustion aspects with different compression ratios, fuel types and injection systems in a single-cylinder research engine

Malaquias

Netto

Costa

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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The growing commercialization of flex-fuel vehicles in Brazil demands the optimization of internal combustion engines for the operation with ethanol (E100) and gasohol (E22), in an attempt to reduce the fuel consumption and minimize the pollutant emissions into the atmosphere. In this sense, this work proposes the study of different volumetric compression ratios in a single-cylinder research engine in order to conclude about its fuel conversion efficiency and, in particular, a more detailed combustion investigation for two of the most common Brazilian fuels. Dynamometric bench tests were performed for distinct compression ratios, injection systems and fuel types, which demanded a specific piston design to meet the requirements for each combustion chamber configuration. The use of ethanol was the most suitable when compared to gasohol, especially at high load conditions, in which was observed a knock tendency for E22 but not for E100, due to its improved physicochemical properties, resulting in enhanced combustion aspects. The proposed methodology proved effective in allowing fuel conversion efficiency gains for the tested fuels, injection systems and piston designs when compared to the engine baseline operation, with up to 6.1% improvement when using the most appropriate compression ratio. Finally, the ethanol direct injection confirmed the potential of this Brazilian biofuel as one of the most promising renewable options for internal combustion engines in current and future sustainable energy directives. Keywords Compression ratio • Internal combustion engine • Fuel conversion efficiency • Ethanol • Flex-fuel Abbreviations ABDC After bottom dead center APMAX Angle of maximum pressure (°) ATDC After top dead center BBDC Before bottom dead center BMEP Brake mean effective pressure (bar) BTDC Before top dead center CA Crank angle CO 2 Carbon dioxide COV Covariance (%) CR Compression ratio DI Direct injection E100

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“…The addition of an alcohol to gasoline changes the composition of the resulting fuel, affecting important properties for the combustion process [6]. The influence of ethanol addition to gasoline have been extensively studied [6][7][8][9][10][11][12]. An important change of the shape of the distillation curve determined by the addition of ethanol to gasoline was reported [7,8].…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of alcohols addition to gasoline on the distillation curve, and vapor pressure

Nita

Geacai

Osman

et al. 2019

Ovidius University Annals of Chemistry

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The properties of gasoline change as a result of blending with an alcohol. The aim of this paper is to report new experimental data on distillation curve and Reid vapor pressure of pseudo-binary blends of a catalytic reforming gasoline with ethanol, i-propanol and n-butanol, respectively. Gasoline blend with ethanol was used as reference for discussing properties of isopropanol and respectively, n-butanol blends with gasoline. The main conclusion is that alcohol addition to gasoline affects the relevant characteristics of the blend that influence engine operation. Gasoline+i-propanol blends have intermediate behavior between gasoline+ethanol and gasoline+n-butanol blends.

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Progress in performance analysis of ethanol-gasoline blends on SI engine

Cited by 124 publications

References 54 publications

A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

An evaluation of combustion aspects with different compression ratios, fuel types and injection systems in a single-cylinder research engine

Study of the influence of alcohols addition to gasoline on the distillation curve, and vapor pressure

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