Experimental investigation of ethanol/diesel dual-fuel combustion in a heavy-duty diesel engine

Han, Jinlin; Somers, Lmt Bart; Cracknell, Roger; Joedicke, Arndt; Wardle, Robert B.; Mohan, V.

doi:10.1016/j.fuel.2020.117867

Cited by 70 publications

(27 citation statements)

References 36 publications

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“…The formulations of the outputs -the emissions and values of engine performance-obtained from the weights are given with the Equations (4)(5)(6)(7)(8)(9)(10)(11). Using these formulates the emissions and performance of the Diesel engine may be calculated within the error range given in the appendices.…”

Section: Resultsmentioning

confidence: 99%

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Artificial neural network based determination of the performance and emissions of a Diesel engine using ethanol-diesel fuel blends

Can

Öztürk

Arcaklıoğlu

2021

International Journal of Automotive Science and Technology

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In this study, the performance and exhaust emission values in a four-stroke, four-cylinder turbocharged Diesel engine fueled with ethanol-diesel fuel blends (10% and 15% in volume) were investigated by using Artificial Neural Network (ANN) modeling. The actual data derived from engine test measurements was applied in model training, crossvalidation, and testing. To train the network, fuel injection pressures, throttle positions, engine speed, and ethanol fuel blend ratios were used as input layer in the network. The outputs are the engine performance values (engine torque, power, brake mean effective pressure, and specific fuel consumption) and exhaust emissions (SO2, CO2, NOx, and smoke level (N%)) which were measured in the experiments.The back-propagation learning algorithm with three different variants, a single layer, and logistic sigmoid transfer function (log-sig) was used in the network. By using the weights of the network, formulations were given for each output. The network for test data yielded the R 2 values of 0.999 and the mean % errors for test data are smaller than 3.5% for the performance and 8% for the emissions.

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Section: Resultsmentioning

confidence: 99%

“…The application of ethanol as a supplementary diesel fuel may reduce environmental pollution, strengthen the agricultural economy, and create job opportunities [3]. The use of ethanol in compression-ignition engines has received considerable attention in recent years [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Artificial neural network based determination of the performance and emissions of a Diesel engine using ethanol-diesel fuel blends

Can

Öztürk

Arcaklıoğlu

2021

International Journal of Automotive Science and Technology

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“…Ethanol is the most consumed biofuel worldwide [1,2]. It is used extensively as an alternative fuel for spark-ignition engines, although studies of dual fuel ethanol-Diesel combustion have also been performed [3]. Apart from benefits related to sustainability, high content ethanol-gasoline blends have also been associated with lower particulate number emissions in downsized engines [4].…”

Section: Alternative Fuels For Spark-ignition Enginesmentioning

confidence: 99%

Spray development of iso-octane, ethanol, hydrous ethanol and water from a multi-hole injector under ultra cold fuel temperature conditions

Aleiferis

Shukla

Brewer

et al. 2021

Fuel

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Multi-hole injectors for direct-injection spark-ignition engines offer atomisation benefits and flexibility in fuel targeting by selection of the number and orientation of the nozzle's holes. However, the spray formation process from multi-hole injectors has been mostly studied for hot fuel conditions and no quantitative data really exist with fuel temperatures representative of engine operation at cold-start. The challenge is further complicated by the predicted fuel stock which will include a significant bio-derived component presenting the requirement to manage fuel sustainability. The thermophysical properties of bio-components like ethanol differ markedly from typical hydrocarbons found in gasoline like iso-octane. Moreover, the production of anhydrous ethanol fuel involves separating water and ethanol by way of distillation and dehydration in an energy intensive process. This work presents results from an optical investigation into the effect of atomisation for iso-octane, anhydrous ethanol, hydrous ethanol with 10% water content per volume and water. Tests were first carried out at ambient conditions of 20 °C, 1 bar with 150 bar injection pressure using high-speed spray imaging. Then the fuel temperature was lowered to -5 °C, -10 °C and -15 °C to focus on spray formation analysis at realistic cold-start engine conditions. Droplet sizing was also conducted by Phase Doppler Anemometry (PDA). The thermophysical properties of all fuels, including vapour pressure, density, viscosity and surface tension, as well as distillation curves, were obtained over a range of temperatures, and the Reynolds, Weber and Ohnesorge numbers were considered in the analysis. The results revealed the degree of suppression of atomisation for each type of fuel at cold temperatures and effects on spray penetration and cone angle, with ethanol fuels exhibiting the strongest effect in the form of longer initial delay out of the nozzle and shorter penetration.

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“…The utilization of biodiesel from edible resources will dictate limited usage of edible oils as food material. Out of the alcohols ethanol [1] can be blended into diesel for fueling in diesel engine which can be manufactured from biomass. The author utilized ethanol into diesel engine in a dual fuel mode up to 80%.…”

Section: Introductionmentioning

confidence: 99%

An Attempt in Blending Higher Volume of Ethanol with Diesel for Replacing the Neat Diesel to Fuel Compression Ignition Engines

Balasubramanian¹

2021

Bioethanol Technologies

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Alcohols are renewable in nature and can be manufactured from biomass. Butanol a higher alcohol, can be utilized as co-solvent to prevent the phase separation of diesel-ethanol blends as per the previous researches.. This experimentation has been conducted with the blends of diesel-ethanol with various proportions of n-butanol followed by the solubility test in the temperature range of 5–25°C. The results indicate that 45% of ethanol can be blended with diesel by the assistance of 10% of n-butanol to make the final blend stable up to a temperature of 5°C for 20 days, which met the requirements of the essential properties (ASTM). Existing diesel engine has been modified as per the optimal level of parameters such as intake air temperature (IAT), fuel injection timing (FIT), nozzle opening pressure (NOP) and compression ratio (CR) obtained using Taghuchi method of L9 orthogonal array. Arrived out parameters are 75°C of IAT, 29°before top dead centre of FIT, 210 bar of NOP and 19: 1 of compression ratio. The implementation of these parameters in diesel engine and fueling with diesel-ethanol butanol blend containing 45% ethanol produced closer performance and emissions characteristics compared to that of diesel. However, the emissions of smoke, hydrocarbon and carbon monoxide produced by the optimal blend are found to be marginally higher compared to that of diesel. These can be ratified by the introduction of after treatment systems modifications.

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Experimental investigation of ethanol/diesel dual-fuel combustion in a heavy-duty diesel engine

Cited by 70 publications

References 36 publications

Artificial neural network based determination of the performance and emissions of a Diesel engine using ethanol-diesel fuel blends

Artificial neural network based determination of the performance and emissions of a Diesel engine using ethanol-diesel fuel blends

Spray development of iso-octane, ethanol, hydrous ethanol and water from a multi-hole injector under ultra cold fuel temperature conditions

An Attempt in Blending Higher Volume of Ethanol with Diesel for Replacing the Neat Diesel to Fuel Compression Ignition Engines

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