Effect of different levels of ethanol addition on performance, emission, and combustion characteristics of a gasoline engine

Köten, Hasan; Karagöz, Yasin; Balcı, Özgün

doi:10.1177/1687814020943356

Cited by 26 publications

(7 citation statements)

References 31 publications

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“…Internal combustion engines (ICE) emit very hazardous exhaust gases in the environment that have an adverse effect on human health, and it is time to find alternate fuels for ICE. Alcohol-based fuels are the best option to reduce emissions and replace fossil fuels in ICE (Karagöz et al , 2020; Köten et al , 2020). Homogeneous charge compression ignition (HCCI) engine is the most advanced low-temperature combustion (LTC) technology.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of various ethanol blends impact on combustion and emissions characteristics of diesel ignited dual fuel HCCI engine

Gawale¹,

Srinivasulu

2021

WJE

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Purpose Homogeneous charge compression ignition (HCCI) engine is an advanced combustion method to use alternate fuel with higher fuel economy and, reduce NOX and soot emissions. This paper aims to investigate the influence of ethanol fraction (ethanol plus gasoline) on dual fuel HCCI engine performance. Design/methodology/approach In this study, the existing CI engine is modified into dual fuel HCCI engine by attaching the carburetor to the inlet manifold for the supply of ethanol blend (E40/E60/E80/E100). The mixture of ethanol blend and the air is ignited by diesel through a fuel injector into the combustion chamber at the end of the compression stroke. The experiments are conducted for high load conditions on the engine i.e. 2.8 kW and 3.5 kW maximum output power for 1,500 constant rpm. Findings It is noticed from the experimental results that, with an increase of ethanol in the blends, ignition delay (ID) increases and the start of combustion is retarded. It is noticed that E100 shows the highest ID and low in-cylinder pressure; however, E40 shows the lowest ID compared to higher fractions of ethanol blends. An increase in ethanol proportion reduces NOX and smoke opacity but, HC and CO emissions increase compared to pure diesel mode engine. E100 plus diesel dual-fuel HCCI engine shows the highest brake thermal efficiency compared to remaining ethanol blends and baseline diesel engine. Originality/value This experimental study concluded that E100 plus diesel and E80 plus diesel gave optimum dual fuel HCCI engine performance for 2.8 kW and 3.5 kW rated power, respectively.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of various ethanol blends impact on combustion and emissions characteristics of diesel ignited dual fuel HCCI engine

Gawale¹,

Srinivasulu

2021

WJE

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“…The ideal operating condition is at CR 11:1 with a 60-80% hydrogen replacement of the ethanol in the fuel. Under stoichiometric conditions, the stated engine power slightly increases with rising ethanol percentage, but the ISEC values fall [2]. The TDC was closer with increasing ethanol levels, maximum in-cylinder pressure, maximum normalized HRR data, and pressure data.…”

Section: Literature Reviewmentioning

confidence: 83%

Performance Emission and Combustion Characteristics of Ethanol Hydrogen Blends at MBT Spark Timing on Multi-cylinder SI Engine

Nitnaware¹,

Suryawanshi

2023

Preprint

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Alternative fuels are the need of the current situation as conventional fuels are depleting very quickly and causing increase in amounts of pollution. Hydrogen as a clean fuel with Higher Calorific Value plays important role in increasing combustion characteristics. When compared with the performance of ethanol as a fuel, ethanol-hydrogen blends have demonstrated a 5% increase in power production, 15% reduction in hydrocarbon emissions, and 12% reduction in carbon dioxide emissions. All tests are conducted at speed of 2500, 3000, 3500, 4000, and 4500 rpm with the Wide-Open-Throttle (WOT) condition. CO & HC emissions are reduced using ethanol, whereas hydrogen addition enhanced the decreased power output, higher brake-specific fuel consumption and in cylinder pressure.

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“…According to research conducted by Mohammed et al, resulting in an increase in the engine power and efficiency with increase the ethanol fraction up to 40% and decrease brake specific fuel consumption (BSFC) by about 17.21%, and the emissions of CO, CO2, HC, and nitric oxide (NOx) produces decrease significantly, and higher ethanol content effected to decreased volumetric efficiency [21]. In other studies, increasing the ethanol fraction reduces HC and CO, whereas increasing NOx emissions due to the ethanol fuel containing O2 caused a higher flame speed during the combustion process [15]. The combustion process in the SI engine very quickly cause produces high peak pressure and affects the increase in the cylinder temperature [22].…”

Section: Literature Reviewmentioning

confidence: 95%

The Effect of Hydrogen Enrichment on The Exhaust Emission Characteristic in A Spark Ignition Engine Fueled by Gasoline-Bioethanol Blends

Rahman

Asnawi

Putra

et al. 2021

Int. J. Eng. Scie. and Inform. Technology.

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Bioethanol characteristics can be used as an alternative fuel to spark-ignition (SI) engines to reduce emissions. This experiment evaluates the production of emissions for SI engines using hydrogen enrichment in the gasoline-bioethanol fuel blends. The fraction of bioethanol fuel blend was added to the gasoline fuel of 10% by volume and hydrogen fuel produced by the electrolysis process with a dry cell electrolyzer. The NaOH was used as an electrolyte which is dissolved in water of 5% by a mass fraction. The test is conducted using a single-cylinder 155cc gasoline engine with sensors and an interface connected to a computer to control loading and record all sensor variables in real-time. Hydrogen produced from the electrolysis reactor is injected through the intake manifold using two injectors, hydrogen injected simultaneously at a specific time with a gasoline-bioethanol fuel. The test was conducted with variations of engine speeds. The emission product of ethanol--H2 (BE10+H2) was an excellent candidate as a new alternative of fuel solution in the future. The engasolinerichment of hydrogen increased the flame speed and generated a stable combustion reaction. The hydrogen enrichment produced CO2 emission due to the unavailability of carbon content in hydrogen fuel. As a result, the C/H ratio is lower than for mixed fuels.

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Effect of different levels of ethanol addition on performance, emission, and combustion characteristics of a gasoline engine

Cited by 26 publications

References 31 publications

Experimental investigation of various ethanol blends impact on combustion and emissions characteristics of diesel ignited dual fuel HCCI engine

Experimental investigation of various ethanol blends impact on combustion and emissions characteristics of diesel ignited dual fuel HCCI engine

Performance Emission and Combustion Characteristics of Ethanol Hydrogen Blends at MBT Spark Timing on Multi-cylinder SI Engine

The Effect of Hydrogen Enrichment on The Exhaust Emission Characteristic in A Spark Ignition Engine Fueled by Gasoline-Bioethanol Blends

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