Effect of n-Butanol Blending with a Blend of Diesel and Biodiesel on Performance and Exhaust Emissions of a Diesel Engine

Altun, Şehmus; Öner, Cengiz; Yaşar, Fevzi; Adin, Hamit

doi:10.1021/ie201023f

Cited by 96 publications

(36 citation statements)

References 13 publications

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“…It can be seen in Figure that the exhaust gas temperatures increased with an increase of the engine load for all tested blends. This can be attributed to a higher amount of fuel burned at higher loads, which lead to higher exhaust gas temperatures . When considering whole loads, the increase in exhaust gas temperature for B100 was observed as 6.16% as compared with diesel fuel.…”

Section: Resultsmentioning

confidence: 93%

Performance of biodiesel/higher alcohols blends in a diesel engine

Yılmaz

İleri

Atmanlı³

2016

Int. J. Energy Res.

120

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SUMMARYAlcohols extensively used in internal combustion engines are important renewable and sustainable energy resources from environmental and economical perspectives. Besides, bio production of alcohols decreases consumption of fossil-based fuels. Although there are many studies with regards to the use of lower alcohols such as methanol and ethanol in internal combustion engines, there are a limited number of investigations with higher alcohols. Higher alcohols such as propanol, n-butanol, and 1-pentanol are part of the next generation of biofuels, given they provide better fuel properties than lower alcohols. Biodiesel-higher alcohol blends can be used in diesel engines without any engine modification but need to be tested under various engine conditions with long periods in order to evaluate their impacts on engine performance and environmental pollutants. The objective of this study was to evaluate the effect of using propanol, n-butanol, and 1-pentanol in waste oil methyl ester (B100) on engine performance and exhaust emissions of a diesel engine running at different loads (0, 3, 6, and 9 kW) with a fixed engine speed (1800 rpm). Test fuel blends were prepared by adding propanol, n-butanol, and 1-pentanol (10 vol.%) into waste oil methyl ester to achieve blends of B90Pr10, B90nB10, and B90Pn10, respectively. According to engine performance and exhaust emissions results, the addition of propanol, n-butanol, and 1-pentanol to B100 had the effect of increasing brake specific fuel consumption and exhaust gas temperatures. The brake thermal efficiency (BTE) decreased for B90Pr10 and B90nB10, while B90Pn10 showed a slight increase in BTE as compared with B100. When compared with B100, B90Pr10, B90nB10, and B90Pn10 decreased carbon monoxide emissions at lower loads while it increased slightly at 9 kW load. The decrement in oxides of nitrogen emission was observed at whole loads for B90Pr10, B90nB10, and B90Pn10 compared with B100. When considering all loads, B90Pn10 presented the best mean hydrocarbon emission with a reduction of 45.41%.

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Section: Resultsmentioning

confidence: 93%

Performance of biodiesel/higher alcohols blends in a diesel engine

Yılmaz

İleri

Atmanlı³

2016

Int. J. Energy Res.

120

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“…Additionally, the kinematic viscosity of butanol is high due to its four-carbon structure. This results in good lubricity of the fuel, which is attractive in delicate fuel pump systems in diesel engines [49]. Its higher oxygen content [21] decreases the formation of soot in diesel engines.…”

Section: Butanol As An Alternative Fuelmentioning

confidence: 99%

Influence of Injection Timing on Performance and Exhaust Emission of CI Engine Fuelled with Butanol-Diesel Using a 1D GT-Power Model

et al. 2019

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Injection timing variations have a significant effect on the performance and pollutant formation in diesel engines. Numerical study was conducted to investigate the impact of injection timing on engine performance and pollutants in a six-cylinder turbocharged diesel engine. Diesel fuel with different amounts (5%, 15%, and 25% by volume) of n-butanol was used. Simulations were performed at four distinct injection timings (5°, 10°, 20°, 25°CA bTDC) and two distinct loads of brake mean effective pressure (BMEP = 4.5 bar and 10.5 bar) at constant engine speed (1800 rpm) using the GT-Power computational simulation package. The primary objective of this research is to determine the optimum injection timing and optimum blending ratio for improved efficiencies and reduced emissions. Notable improvements in engine performance and pollutant trends were observed for butanol-diesel blends. The addition of butanol to diesel fuel has greatly diminished NOX and CO pollutants but it elevated HC and CO2 emissions. Retarded injection timing decreased NOX and CO2 pollutants while HC and CO2 emissions increased. The results also indicated that early injection timings (20°CA bTDC and 25°CA bTDC) lowered both CO2 and unburned hydrocarbon emissions. Moreover, advanced injection timing slightly improved brake thermal efficiency (BTE) for all engine loads. It is concluded that retarded injection timing, i.e., 10°CA bTDC demonstrated optimum results in terms of performance, combustion and emissions and among the fuels 15B showed good outcome with regard to BTE, higher heat release rate, and lower pollution of HC, CO, and NOx.

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“…Rakopoulos [24] reported improved emissions and performance when n-butanol and diethyl ether were used with cottonseed biodiesel. Altun et al [27] also reported improvement of cottonseed biodiesel-diesel blend with n-butanol as additive. Qi et al [23] found that the performance and emission characteristics of biodiesel-diesel blend improved with the addition of diethyl ether and ethanol.…”

Section: Introductionmentioning

confidence: 99%

Influence of Acetone as Oxygenator Additive on the Combustion, Performance, and Emission of Dieselbiodiesel Blends in Direct Injection Diesel Engine

Kabeel

Shenawy

Elkelawy

et al. 2018

The International Conference on Applied Mechanics and Mechanica

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Diesel fuel additives are chemicals which are added to the vehicles fuel to improve engine performance, combustion properties, and emission characteristics. In this paper, the experimental investigations of the effect of diesel-biodiesel-acetone emulsion fuels on the performance and emissions of a direct injection diesel engine have been reported. The tests were conducted on one-cylinder naturally aspirated compression ignition engine operated at 1600 rpm. Measured characteristics were torque, power, brake thermal efficiency, specific fuel consumption, exhaust gas temperature, and exhaust gases of CO, CO2, unburned hydrocarbons (UHC), NO, and O 2 .The obtained results show that the torque, power, and Break Thermal Energy were increased when we compare the engine operation with pure diesel fuel. Additionally, the specific fuel consumption and engine exhaust gas temperature were reduced. The CO, UHC, and soot emissions were decreased. However, the NO emission was increased.

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Effect of n-Butanol Blending with a Blend of Diesel and Biodiesel on Performance and Exhaust Emissions of a Diesel Engine

Cited by 96 publications

References 13 publications

Performance of biodiesel/higher alcohols blends in a diesel engine

Performance of biodiesel/higher alcohols blends in a diesel engine

Influence of Injection Timing on Performance and Exhaust Emission of CI Engine Fuelled with Butanol-Diesel Using a 1D GT-Power Model

Influence of Acetone as Oxygenator Additive on the Combustion, Performance, and Emission of Dieselbiodiesel Blends in Direct Injection Diesel Engine

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