A novel approach to study the effect of cetane improver on performance, combustion and emission characteristics of a CI engine fuelled with E20 (diesel – bioethanol) blend

Kumar, Himansh; Sarma, Anil Kumar; Kumar, Payal

doi:10.1016/j.scp.2019.100185

Cited by 19 publications

(12 citation statements)

References 27 publications

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“…According to the literature survey, researchers have used (2-ethylhexyl nitrate) (2-EHN), di-tert-butyl peroxide (DTBP), dimethoxyethane (DME), cyclohexyl nitrate and pyrogallol as cetane improver or cetane enhancer in general [17][18][19][20][21]. DTBP is one of the most commonly used cetane improvers for diesel engine fuels because it has properties such as good solubility, high cetane number and homogeny miscible [22].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the cetane improver and bioethanol addition for the use of waste cooking oil biodiesel as an alternative fuel in diesel engines

Örs

2020

J Braz. Soc. Mech. Sci. Eng.

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In this study, bioethanol produced from sugar beet and biodiesel produced from waste cooking oils was blended with each other in the volumetric rates to be 20% and 80%, respectively. Cetane improver (di-tert-butyl peroxide) was added into blend fuel in 1-2-3% as volumetric. The obtained blends were used as a fuel in the diesel engine which is single-cylinder, directinject, four-stroke. The tests were conducted under four different engine loads (25%, 50%, 75% and 100%) and 1400 rpm engine speed. The test results showed that brake-specific fuel consumption was decreased up to 15.5% thanks to the addition of cetane improver, although biodiesel and bioethanol increased brake-specific fuel consumption by 16.1% and 27.54%, respectively. However, brake thermal efficiency values were increased up to 9.44% with both biodiesel and cetane improver added blend fuels, while brake thermal efficiency was decreased by 3.88% with bioethanol addition. The more compatible combustion characteristics with that of diesel fuel have been obtained due to especially the increase in cetane number. The use of biofuels increased both maximum cylinder pressure and heat release rate. While, with the cetane improver addition, a decrease in CO, HC and smoke opacity values was observed up to 22.5%, 17.44% and 24.44%, respectively, CO 2 , NO X and exhaust gas temperature values were increased up to 19.55%, 5% and 15.22%, respectively, according to bioethanol blend fuel. Keywords Waste cooking oil • Biodiesel • Bioethanol • Cetane improver • Diesel engine List of symbols BSFC Brake-specific fuel consumption BTE Brake thermal efficiency CA Crank angle CA50 Crank angle point for 50% accumulated HRR CA90 Crank angle point for 90% accumulated HRR CBD Cotton biodiesel cDF Conventional diesel fuel CI Cetane index CNI Cetane improver CO Carbon monoxide CO 2 Carbon dioxide DI Direct injection DTBP Di-tert-butyl peroxide

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of the cetane improver and bioethanol addition for the use of waste cooking oil biodiesel as an alternative fuel in diesel engines

Örs

2020

J Braz. Soc. Mech. Sci. Eng.

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“…9 that the higher the CN, the smaller the NO x emission. Several studies reported the effect of CN on resulting emissions and concluded that NO x decreased when CN increased in diesel fuel (Chacko et al, 2021;Kumar et al, 2019;Labeckas et al, 2021).…”

Section: Gas Emissionsmentioning

confidence: 99%

Performance and Emission of Diesel Engine Fuelled by Commercial Bio-Diesel Fuels in Indonesia

Kristyadi

Permana

Sirodz

et al. 2022

Acta Technologica Agriculturae

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The performance and emission of a small diesel engine fuelled by commercial diesel fuel in Indonesia are present in this paper. Various commercial diesel fuels in Indonesia are produced and marketed by Pertamina. As the largest oil company in Indonesia, Pertamina has developed various diesel fuels, namely Solar, Biosolar (B30), Dexlite, and Pertadex. This study explains in more detail the performance, fuel consumption, and emission produced by the four types of fuels, and they were investigated experimentally using a single-cylinder diesel engine at various engine speeds, from 1,000 rpm to 4,500 rpm. The result shows the engine fuelled by Pertadex generates the highest power and torque, while the lowest is generated by the Biosolar fuelled engine. The maximum torque and power generated by the Pertadex fuelled engine are about 25.5 Nm and 7200 W, respectively. The engine fuelled by Pertadex has the lowest brake specific fuel consumption (BSFC) of 0.3037 kg·kW·h, compared to the engines fuelled by the Dexlite, Solar, and Biosolar fuels, with values around 0.3127, 0.3215, and 0.3338 kg·kW·h, respectively. At the same time, the measurement of gas emissions, including CO2, CO, NOx, and HC was conducted simultaneously.

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“…Kumar et al 2019 17 have investigated cetane improver 2‐ethylhexyl nitrate (2‐EHN) with E20 (ethanol‐diesel blend) in CI engine. Kumar et al 2019 17 observed that 20% ethanol blend with diesel, doped with 1000 ppm of 2‐ethylhexyl nitrate (2‐EHN) enhanced the brake thermal efficiency (BTE) by 4.9%, however, 2000 ppm of 2‐EHN doping resulted in reduced BTE. Shirneshan et al 2020 18 have investigated biodiesel‐ethanol blends in a diesel engine found that blended fuel resulted with lower power with 17% reduced NOx emission and 38% reduced smoke emissions.…”

Section: Introductionmentioning

confidence: 99%

Effect of inherent oxygen mass fraction of alcohol blends with diesel on combustion and emission parameters

Sahu

Shukla

2022

Env Prog and Sustain Energy

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Increasing air pollution and implementation of stricter emission regulations led to the research for the clean combustion concept of combustion engines. To resolve this concern, it is important to look for a clean and stable combustion concept that can adapt easily to an old existing engine as well as newer engines. The present study was performed to investigate the combustion stability and emission for blends of methanol (M), ethanol (E), and butanol (B) to evaluate the effect of their inherent oxygen content. Alcohol blends were prepared for two different oxygen mass fractions of 2.5% and 5% oxygen, m/m (defined as M2.5, E2.5, B2.5 and M5, E5, B5). For this, different volume fraction of respective alcohol was required (M2.5 and M5 contained 5.2% and 10.3% methanol respectively, E2.5 and E5 contained 7.4% and 14.8% ethanol respectively, B2.5 and B5 contained 11.7% and 23.3% butanol respectively).Detailed combustion analysis was performed for the alcohol blends (2.5% and 5% oxygen mass fraction) using the parameters like cycle-to-cycle analysis, coefficient of variation, combustion phasing etc. M5 showed the better stable combustion considering the lowest coefficient of variation for CA50 and indicated mean effective pressure. Moreover, the performance of E5 showed improved efficiency with brake thermal efficiency (BTE) of 27.94% and reduced brake specific fuel consumption. Significant reductions in hydrocarbon (HC), smoke and carbon dioxide (CO 2 ) emissions were recorded for 2.5% and 5% oxygenated condition. M5 showed lowest emission level among tested fuel with 20% lower oxide of nitrogen (NO) and 50% lower HC.

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A novel approach to study the effect of cetane improver on performance, combustion and emission characteristics of a CI engine fuelled with E20 (diesel – bioethanol) blend

Cited by 19 publications

References 27 publications

Experimental investigation of the cetane improver and bioethanol addition for the use of waste cooking oil biodiesel as an alternative fuel in diesel engines

Experimental investigation of the cetane improver and bioethanol addition for the use of waste cooking oil biodiesel as an alternative fuel in diesel engines

Performance and Emission of Diesel Engine Fuelled by Commercial Bio-Diesel Fuels in Indonesia

Effect of inherent oxygen mass fraction of alcohol blends with diesel on combustion and emission parameters

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