Spray combustion and soot formation characteristics of the acetone-butanol-ethanol/diesel blends under diesel engine-relevant conditions

Xu, Zhengxin; Duan, Xiongbo; Liu, Yiqun; Deng, Banglin; Liu, Jingping

doi:10.1016/j.fuel.2020.118483

Cited by 49 publications

(12 citation statements)

References 56 publications

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“…The experimental results revealed that all BA mixtures enhanced spray penetration, offered some improvement in brake power and reduced emission levels (UHC, CO and NO x ). The abovementioned studies support the advantages of using ABE in compression ignition (CI) engines [3,17,18]. Recent research by the authors [5] has also investigated ABE-diesel blends and found that the studied ABE blend reduced exhaust emissions.…”

Section: Introductionmentioning

confidence: 63%

Comparative Assessment of Spray Behavior, Combustion and Engine Performance of ABE-Biodiesel/Diesel as Fuel in DI Diesel Engine

Algayyim

Wandel

2020

Energies

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This study investigates the impact of an acetone-butanol-ethanol (ABE) mixture on spray parameters, engine performance and emission levels of neat cottonseed biodiesel and neat diesel blends. The spray test was carried out using a high-speed camera, and the engine test was conducted on a variable compression diesel engine. Adding an ABE blend can increase the spray penetration of both neat biodiesel and diesel due to the low viscosity and surface tension, thereby enhancing the vaporization rate and combustion efficiency. A maximum in-cylinder pressure value was recorded for the ABE-diesel blend. The brake power (BP) of all ABE blends was slightly reduced due to the low heating values of ABE blends. Exhaust gas temperature (EGT), nitrogen oxides (NOx) and carbon monoxide (CO) emissions were also reduced with the addition of the ABE blend to neat diesel and biodiesel by 14–17%, 11–13% and 25–54%, respectively, compared to neat diesel. Unburnt hydrocarbon (UHC) emissions were reduced with the addition of ABE to diesel by 13%, while UHC emissions were increased with the addition of ABE to biodiesel blend by 25–34% compared to neat diesel. It can be concluded that the ABE mixture is a good additive blend to neat diesel rather than neat biodiesel for improving diesel properties by using green energy for compression ignition (CI) engines with no or minor modifications.

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Section: Introductionmentioning

confidence: 63%

Comparative Assessment of Spray Behavior, Combustion and Engine Performance of ABE-Biodiesel/Diesel as Fuel in DI Diesel Engine

Algayyim

Wandel

2020

Energies

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“…As a result, in-cylinder pressure, heat release rate, combustion efficiency and soot emissions decreased with the increase of the ABE ratio in the mixture. Moreover, the combustion temperature distribution was more uniform, and the flame lift-off length increased [24].…”

Section: Introductionmentioning

confidence: 96%

A numerical approach in the investigation of the effects of diethyl ether and ethanol mixtures on combustion characteristics and NO emissions in a DI diesel engine

Temizer

GÜCER

Cihan

2022

European Mechanical Science

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In this study, the effects of adding ethanol and diethyl ether to diesel fuel on combustion characteristics and NO emissions were numerically investigated. 100% diesel fuel (D100) and by volume 90% diesel+10% ethanol blend (D90E10), 80% diesel+20% ethanol blend (D80E20), 80% diesel+10% ethanol+10% diethyl ether blend (D80E10DEE10) and 85% diesel+ 10% ethanol+5% diethyl ether mixture (D85E10DEE5) was used as fuel. Analyzes were carried out using a single cylinder direct injection diesel engine at 2000 and 3000 rpm engine speed conditions. AVL FIRE software was used for numerical study. In-cylinder pressure, cumulative heat release rate, turbulent kinetic energy (TKE), NO emissions and velocity distributions in the combustion chamber were investigated for five different fuel types. As a result, the in-cylinder pressure and heat release rate of ethanol and diethyl ether blended fuels were lower than diesel fuel at both speeds. This is due to the calorific value of the fuel. It was observed that NO emissions decreased as the ethanol content in the fuel increased. For both engine speeds, the highest TKE value was obtained in D90E10 mixed fuel, and the lowest value was found in D80E10DEE10 mixture fuel. Ethanol positively affected the turbulent kinetic energy. The flow rate of ethanol was higher than diesel and diethyl ether fuel.

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“…However, these engines tend to be more costly, emit harmful HC, CO, and NO x emissions, and are major contributors to air pollution . Sustainable renewable sources like alcohol and biodiesel have received major focus in recent times as a potential substitute to conventional diesel fuels. , Blending of alcohols like methanol and ethanol with diesel fuel has the potential to improve fuel properties and reduce emission of greenhouse gases. , Alcohols, because of the presence of the oxygen molecule, have a complete combustion potential, enhancing the combustion efficiency and reducing particulate matter, carbon residue formation, and engine knock. − Furthermore, addition of alcohol to diesel fuel improves blend properties like viscosity, lubricity, cetane number, and overall ignitability. − For this reason, the blending of alcohol in certain proportions with diesel fuel to run diesel engines is suggested . Biodiesel–ethanol blends are more effective than biodiesel–methanol, and more economical and environmentally friendly than biodiesel and petroleum-based fuels. − However, the use of ethanol with diesel has several limitations.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Ethyl Acetate, 1-Octanol, and Soy Biodiesel in Stabilizing Ethanol–Diesel Fuel Blends and Performance of Compression Ignition Engine on Stabilized Fuel Blends

Parray

Bhattacharya

2022

ACS Omega

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A study was conducted to evaluate ethyl acetate, soy biodiesel, and 1-octanol as surfactants for stabilization of ethanol–diesel fuel blends. The evaluation was based on the temperature stability and engine performance of ethanol–diesel fuel blends stabilized by selected surfactants. Among the three selected surfactants, 1-octanol was most effective in stabilizing ethanol–diesel fuel blends. Out of 20 ethanol–diesel fuel blends prepared with 1-octanol as surfactant, only 3 blends showed distinct phase separation; the rest 17 remained stable in the entire temperature range of 0–45 °C. At the rated engine speed, eight ethanol–diesel fuel blends showed similar power-producing capability as that of diesel. The engine running on diesel developed a power of 3.71 kW, while the engine brake power with ethanol–diesel fuel blends was in the range of 3.67–3.74 kW at the rated load condition. The tested fuel blends resulted in slightly higher fuel consumption and increased emission of unburnt hydrocarbons as compared to the diesel fuel. The tested fuel blends had comparable thermal efficiency and acceptable UBHC and NO x emissions compared to diesel.

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Spray combustion and soot formation characteristics of the acetone-butanol-ethanol/diesel blends under diesel engine-relevant conditions

Cited by 49 publications

References 56 publications

Comparative Assessment of Spray Behavior, Combustion and Engine Performance of ABE-Biodiesel/Diesel as Fuel in DI Diesel Engine

Comparative Assessment of Spray Behavior, Combustion and Engine Performance of ABE-Biodiesel/Diesel as Fuel in DI Diesel Engine

A numerical approach in the investigation of the effects of diethyl ether and ethanol mixtures on combustion characteristics and NO emissions in a DI diesel engine

Effectiveness of Ethyl Acetate, 1-Octanol, and Soy Biodiesel in Stabilizing Ethanol–Diesel Fuel Blends and Performance of Compression Ignition Engine on Stabilized Fuel Blends

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