Investigation into ethanol effects on combustion and particle number emissions in a spark-ignition to compression-ignition (SICI) engine

Fan, Qinhao; Liu, Shang; Qi, Yunliang; Cai, Kai-Yuan; Wang, Zhi

doi:10.1016/j.energy.2021.121170

Cited by 24 publications

(4 citation statements)

References 65 publications

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“…The length of the flame decreased until a concentration of 20% ethanol (E20) in gasoline and then increased at a concentration of 40% ethanol (E40). This occurs because at ethanol concentrations up to 20% (E20) in gasoline, micro explosions are prevalent, and the intensity of micro explosions decreases until ethanol concentrations reach E40 [13]. Micro explosions cause fuel droplets to fragment into small grains, which speeds up the vaporization and mingling of fuel with air, thereby accelerating the combustion reaction.…”

Section: Resultsmentioning

confidence: 99%

“…The highest combustion rate constant value was found in E40, with a value of 0.984 mm2/s, while the lowest value was found in E100, with a value of 0.658 mm2/s. The constant combustion rate of E30 and E40 has increased because ethanol contains 34% by weight of oxygen [13]. When the fuel is heated, the oxygen atoms in ethanol react first with the C (carbon) and H (hydrogen) atoms in ethanol, causing the combustion reaction to accelerate and the burning rate constant value to be greater [11].…”

Section: Resultsmentioning

confidence: 99%

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Implementation of an Electric Turbocharger on A Single-Cylinder Spark Ignition Engine in an Effort to Use Ethanol Gasoline E40

Wagino,

Alwi,

Yasep Setiawan

et al. 2024

TEM Journal

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This study delves into the impact of electric turbochargers on fuel efficiency and emissions in ethanol-gasoline blends. Informed by relevant literature, the research zeroes in on the positive influence of electric turbochargers, emphasizing their role in reducing fuel consumption and emissions while also addressing the trade-off between flame characteristics and NOx emissions. The experimental focus is on the injection modification of a single cylinder, with samples including engines equipped with and without an electric turbocharger. Statistical analysis utilizing percentage-based methods reveals that this technology leads to a substantial 94% reduction in CO emissions at idle speed, a 49% decrease in HC emissions at idle speed, and a 10% increase in CO2 at idle speed. Additionally, it also results in a notable 16.04% reduction in fuel consumption at 40 km/h. These outcomes underscore the potential of electric turbochargers to enhance automotive efficiency and sustainability while acknowledging the trade-off that necessitates further exploration for optimal emission control. The research provides concrete insights for refining electric turbocharger technology and optimizing its practical application.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Implementation of an Electric Turbocharger on A Single-Cylinder Spark Ignition Engine in an Effort to Use Ethanol Gasoline E40

Wagino,

Alwi,

Yasep Setiawan

et al. 2024

TEM Journal

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“…Over the last decades, many prominent studies have been carried out on the explosion properties of ethanol at normal pressure and temperature 15–18 . However, not much research has been conducted on its properties at different pressures and temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11][12][13][14] Over the last decades, many prominent studies have been carried out on the explosion properties of ethanol at normal pressure and temperature. [15][16][17][18] However, not much research has been conducted on its properties at different pressures and temperatures. The crucial parameters that represent the flammability characteristics of flammable fuels are the flammability limits.…”

Section: Introductionmentioning

confidence: 99%

Study of ethanol vapor explosion and prediction based on chemical kinetics under high temperature and pressure

Qi,

Ding,

Pan

et al. 2023

Process Safety Progress

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The study of the explosion parameters of ethanol–air mixture at high pressure and temperature is essential for the safe production of ethanol. However, the explosion characteristics of ethanol vapor at various pressures and temperatures are limited. The mechanism at the flammability limits of ethanol has not been clarified, and the corresponding prediction model is also lacking. In this study, chemical kinetics and machine learning are used to study the mechanism of ethanol explosion and build predictive models, respectively. Our findings show that an increase in the initial pressure has a more pronounced influence on the explosion pressure (Pex) and pressure rise rate (dp/dt) than an increase of temperature. The variation trend of the upper flammability limit (UFL) of ethanol is related to the different effects of temperature and pressure on OH radicals. H + O2<>OH + O and HO2 + CH3<>OH + CH3O had the greatest effect on the generation of OH radicals. The quantitative relationship between the H, O, and OH radicals and UFL was constructed by machine learning, providing a new research perspective for the prediction of the UFL of an inflammable fuel under different pressures and temperatures. The results of the study will provide theoretical and practical guidance for the prevention and control of explosions in the ethanol production process.

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Biofuel production: An initiative of environmentally sound technologies (EST’s) or Green technologies

Edwin

Nila²,

Nair

2023

Environmental Sustainability of Biofuels

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Investigation into ethanol effects on combustion and particle number emissions in a spark-ignition to compression-ignition (SICI) engine

Abstract: Investigation into ethanol effects on combustion and particle number emissions in a spark-ignition to compression-ignition (SICI) engine, Energy,

Cited by 24 publications

References 65 publications

Implementation of an Electric Turbocharger on A Single-Cylinder Spark Ignition Engine in an Effort to Use Ethanol Gasoline E40

Implementation of an Electric Turbocharger on A Single-Cylinder Spark Ignition Engine in an Effort to Use Ethanol Gasoline E40

Study of ethanol vapor explosion and prediction based on chemical kinetics under high temperature and pressure

Biofuel production: An initiative of environmentally sound technologies (EST’s) or Green technologies

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