Impact of alcohol–gasoline fuel blends on the performance and combustion characteristics of an SI engine

Eyidoğan, Muharrem; Özsezen, Ahmet Necati; Çanakçı, Mustafa; Türkcan, Ali

doi:10.1016/j.fuel.2010.01.032

Cited by 241 publications

(68 citation statements)

References 14 publications

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“…On the contrary, as to n-butanol blends with large n-butanol content, the crank angle corresponded to the peak value of CP increases obviously (≥ 4%) because the high latent heat of vaporization of n-butanol plays the leading role in combustion process. Eyidogan et al [12] also obtained the same results in their research on performance and combustion characteristics of an SI engine fuelled with alcohol-gasoline blends.…”

Section: The Cylinder Pressure and Pressure Rise Ratementioning

confidence: 55%

Combustion Characteristics and Cyclic Irregularity of an EFI Gasoline Engine Fueled with n-Butanol/gasoline Blends

Qin

Tan

et al. 2014

Int. J. Thermo

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An experimental study was conducted to evaluate the combustion characteristics of blends of n-butanol to gasoline with volume ratios of 0%, 20%, 50%, and 85% in addition to neat n-butanol on an electronic fuel injection (EFI) gasoline engine. Without any modifications to the original engine, the tests were carried out using the above five test fuels, with the engine working at maximum torque speed (3000 rpm) and four loads (25%, 50%, 75% and 100% of the maximum torque). The combustion characteristics including cylinder pressure, instantaneous and cumulative heat release were analysed. The test results show that all the peak values of cylinder pressure (CP), pressure rise rate (PRR), instantaneous heat release rate (IHRR) as well as total heat release of n-butanol/gasoline blends are lower than those of gasoline, and the higher the percentage of n-butanol is, the larger the reduction becomes. The crank angles of the peak values of CP, PRR and IHRR are larger than those of gasoline, whereas the crank angle of the total heat release is smaller than that of gasoline. The cyclic irregularity of n-butanol/gasoline bends is higher than that of gasoline. Therefore, the combustion of n-butanol/gasoline blends becomes mild, which further gives the benefit of reducing NO X emissions. However, the spark timing of the prototype should be advanced more in order to avoid power decreasing of n-butanol /gasoline blends.

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Section: The Cylinder Pressure and Pressure Rise Ratementioning

confidence: 55%

Combustion Characteristics and Cyclic Irregularity of an EFI Gasoline Engine Fueled with n-Butanol/gasoline Blends

Qin

Tan

et al. 2014

Int. J. Thermo

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“…For instance, combustion e ciencies of 89.75% and 89.13% were obtained in Cases 7 and 8, respectively. Contrary to these results, when a closed-loop control system is employed to maintain stoichiometric combustion, the use of ethanol as an oxygenated fuel is expected to improve the combustion e ciency [47]. Figure 8 depicts NOx emissions in di erent experimental cases.…”

Section: Combustion E Ciencymentioning

confidence: 96%

Performance and emissions optimization of an ethanol-gasoline fueled SI engine with oxygen enrichment using artificial bee colony algorithm

2017

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Abstract. The use of arti cial neural network in conjunction with arti cial bee colony algorithm is proposed as a method for performance and emissions optimization of an SI engine. The case study here involves the oxygen enriched combustion of an SI engine fueled with hydrous ethanol and gasoline. In this study, the engine was considered as a black box and its performance and emissions were extracted experimentally at di erent intake air oxygen concentrations, hydrous ethanol injection rates, and ethanol concentration in the hydrous ethanol mixture. Then, the simultaneous injection of hydrous ethanol and oxygen enriched combustion was investigated to maximize the fuel conversion e ciency and minimize the CO and NOx emissions. Therefore, an objective function consisting of both the emission and performance parameters was optimized using the Arti cial Bee Colony algorithm. The engine model used in this optimization process was obtained from an Arti cial Neural Network trained with experimental engine data. For operating speed of 3000 rpm, the optimization results indicated 1.21% improvement in fuel conversion e ciency and 31.11% and 13.94% reduction in CO and NOx emissions, respectively. At the speed of 2000 rpm, fuel conversion e ciency improved by 4.11% and CO emission decreased by 18.73%, while NOx concentration increased by 28.35%.

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“…Then, the compression ratio was gradually raised to 8:1 and 10:1. The results showed a considerable decrease in CO, CO 2 and NO x emissions without any noticeable power loss compared to using methanol at the compression ratio of 6:1. By increasing the compression ratio from 6:1 to 10:1 with methanol, the engine power and brake thermal efficiency increased up to 14% and 36%, respectively.…”

Section: Introductionmentioning

confidence: 93%

“…Most industrial process scenarios today are staged around the development of high performance economical machine tools to increase productivity. In the context of engine performance improvement and management researchers continue to study the effects of the usage of conventional gasoline blended with alternative fuels on the engines' performance [1][2][3][4][5][6]. Recent advancements in rare earth magnets have paved the way for simultaneous research into replacing conventional generators with high power generators that help increase the performance of the engine, and heavier conventional engines with battery setups are being replaced by lightweight portable electric generators, making the use of a portable electric generators more practical compared to the battery setups for outdoor applications, especially in the agricultural industry.…”

Section: Introductionmentioning

confidence: 99%

“…Most of them reveal that bio-fuel gasoline blending increases the engine performance and reduces the emissions of carbon monoxide (CO), nitrogen oxides (NO x ) and hydrocarbons (HCs). Muharrem et al [2] studied the effect of ethanol-gasoline (E5, E10) and methanol-gasoline (M5, M10) fuel blends on the performance and combustion characteristics of a spark ignition (SI) engine. The results indicated that when alcohol-gasoline fuel blends are used, the brake specific fuel consumption is increased.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance Improvement of a Portable Electric Generator Using an Optimized Bio-Fuel Ratio in a Single Cylinder Two-Stroke Engine

et al. 2011

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Abstract:The performance of an electrical generator using bio-fuel and gasoline blends of different composition as fuel in a single cylinder engine is presented. The effect of an optimized blend ratio of bio-fuel with gasoline on engine performance improvement and thereby on the electrical generator output is studied. Bio-fuels such as ethanol, butanol and methanol are blended with gasoline in different proportions and evaluated for performance. The effects of different bio-fuel/gasoline blending ratios are compared experimentally with that of the gasoline alone using the output power developed by the electric generator as the evaluation parameter. With a composition of 10% ethanol-gasoline, the engine performance is increased up to 6% and with a blending ratio of 20% butanol-gasoline the performance is increased up to 8% compared to the use of 100% gasoline. The investigations are performed on a portable generator used in palm tree harvesting applications.

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Impact of alcohol–gasoline fuel blends on the performance and combustion characteristics of an SI engine

Cited by 241 publications

References 14 publications

Combustion Characteristics and Cyclic Irregularity of an EFI Gasoline Engine Fueled with n-Butanol/gasoline Blends

Combustion Characteristics and Cyclic Irregularity of an EFI Gasoline Engine Fueled with n-Butanol/gasoline Blends

Performance and emissions optimization of an ethanol-gasoline fueled SI engine with oxygen enrichment using artificial bee colony algorithm

Performance Improvement of a Portable Electric Generator Using an Optimized Bio-Fuel Ratio in a Single Cylinder Two-Stroke Engine

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