Experimental determination of suitable ethanol–gasoline blend rate at high compression ratio for gasoline engine

Çelik, Mustafa

doi:10.1016/j.applthermaleng.2007.10.028

Cited by 247 publications

(111 citation statements)

References 19 publications

(22 reference statements)

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“…The mixture temperature at the end of the intake stroke decreases, and thus decreases the combustion temperature. As a result, NO x emissions decrease, which is in agreement with Celik [8]. Moreover, the reduction of NO x was dominated by the water content in the fuel mixture (G75E21M4) as reported by Chen et al [7].…”

Section: Carbon Dioxidesupporting

confidence: 78%

Emissions from Petrol Engine Fueled Gasoline–Ethanol–Methanol (GEM) Ternary mixture as Alternative Fuel

Thangavelu

Chelladorai

Ani

2015

MATEC Web of Conferences

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Abstract. The increasing demands of petroleum fuels due to the rapid development automotive society coupled with the environmental pollution issues have inspired the efforts on exploring alternative fuels for internal combustion engines. Bioethanol obtained from biomass and bioenergy crops has been proclaimed as one of the feasible alternative to gasoline. In this study, the effect of gasoline-ethanol-methanol (GEM) ternary blend on the emission characteristics of petrol engine was studied. Three different fuel blends, namely, E0 (gasoline), G75E21M4 (75% gasoline, 21% hydrous ethanol and 4% methanol) and E25 (25% anhydrous ethanol and 75% gasoline) were tested in a 1.3-l K3-VE spark-ignition engine. The results indicate that, when G75E21M4 fuel blend was used, a significant drop in CO, CO2, NOx and HC emissions by about 42%, 15%, 7% and 5.2% compared to E0, respectively. Moreover, the emission results for G75E21M4 are marginally lower than E25 whereas; HC emission was slightly higher than E25.

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Section: Carbon Dioxidesupporting

confidence: 78%

Emissions from Petrol Engine Fueled Gasoline–Ethanol–Methanol (GEM) Ternary mixture as Alternative Fuel

Thangavelu

Chelladorai

Ani

2015

MATEC Web of Conferences

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“…The use of ethanol and other bio/renewable fuels has brought new challenges to automotive sector to develop new technologies. Ethanol direct injection plus gasoline port injection (EDI + GPI) is one of the new technologies in recent development.Previous studies on SI engines found that using ethanol fuel could help to reduce unburned emissions such as carbon monoxide (CO) and hydrocarbon (HC) [5][6][7], enhance engine anti-knock ability [8,9], and improve lean burn performance [10,11]. In the current applications, ethanol is externally blended with gasoline at a specific ratio.…”

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confidence: 99%

Effects of direct injection timing of ethanol fuel on engine knock and lean burn in a port injection gasoline engine

Zhuang

Hong

2014

Fuel

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Improving engine efficiency and reducing its emissions are the major tasks of recent development in internal combustion technology [1]. This is driven by the society concerns about the global warming and the depletion in supply of fossil fuels. One of the feasible short-to-midterm solutions for addressing the concerns is to use renewable fuels such as ethanol. Many countries and areas have enacted legislations [2] or incentive policies to promote the use of ethanol and other bio/renewable fuels [3,4]. The use of ethanol and other bio/renewable fuels has brought new challenges to automotive sector to develop new technologies. Ethanol direct injection plus gasoline port injection (EDI + GPI) is one of the new technologies in recent development.Previous studies on SI engines found that using ethanol fuel could help to reduce unburned emissions such as carbon monoxide (CO) and hydrocarbon (HC) [5][6][7], enhance engine anti-knock ability [8,9], and improve lean burn performance [10,11]. In the current applications, ethanol is externally blended with gasoline at a specific ratio. The applications of this method decreased pollutant emissions and increased engine efficiency in certain engine conditions [12,13]. However, the vehicles may face problems of reduced vehicle coverage, difficult cold start [14], corrosion and reduced lubrication [15]. Moreover, due to the fixed ethanol/gasoline ratio, the ethanol's potential in reducing engine emissions and improving thermal efficiency cannot be fully exploited. Research has already shown that the optimal ethanol/gasoline ratio for maximizing engine efficiency and minimizing emissions was varied with the engine operation condition [6,7]. EDI + GPI dual-fuel injection, on the other hand, provides an opportunity to solve the problems and meet the requirements. It offers greater flexibility of using ethanol fuel because the ethanol and gasoline mixing ratio can be instantly altered according to the engine operation Effects of direct injection timing of ethanol fuel on engine knock and lean burn in a port injection gasoline engine AbstractEthanol is a promising alternative fuel for internal combustion engines due to its renewable feature. To make the use of ethanol fuel more effective and efficient, ethanol direct injection plus gasoline port injection (EDI + GPI) has been investigated in recent years. By directly injecting ethanol into the engine, the advantages of ethanol fuel such as high latent heat of vaporization, fast laminar flame speed, wide flammability and better low temperature combustion stability can be well utilized to enhance engine anti-knock ability and improve lean burn performance. For an engine equipped with direct injection (DI) system, start of injection (SOI) timing is an important control parameter which directly affects the engine performance. This paper reports the investigation to the effect of ethanol fuel SOI timing on knock mitigation and lean burn. Experiments were conducted on a 250 cc single cylinder spark ignition (SI) engine equipped with EDI ...

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“…The most in uential parameter on CO emission is the relative air-fuel ratio [35]. As indicated in Figure 9, which illustrates the CO emissions in each case, the addition of oxygen mostly has reducing e ect on CO concentrations; yet, some cases exhibit slightly increased CO values.…”

Section: Co Emissionmentioning

confidence: 98%

“…Ethanol has a higher heat of evaporation than gasoline has; this provides cooler and denser fuel-air intake charge, and thus a higher output torque is produced [35]. It also increases the knock resistance of the air-fuel mixture.…”

Section: Optimizationmentioning

confidence: 99%

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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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Experimental determination of suitable ethanol–gasoline blend rate at high compression ratio for gasoline engine

Cited by 247 publications

References 19 publications

Emissions from Petrol Engine Fueled Gasoline–Ethanol–Methanol (GEM) Ternary mixture as Alternative Fuel

Emissions from Petrol Engine Fueled Gasoline–Ethanol–Methanol (GEM) Ternary mixture as Alternative Fuel

Effects of direct injection timing of ethanol fuel on engine knock and lean burn in a port injection gasoline engine

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

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