Performance improvement and exhaust emissions reduction in diesel engine through the use of graphene quantum dot (GQD) nanoparticles and ethanol-biodiesel blends

Heidari-Maleni, Aram; Gundoshmian, Tarahom Mesri; Jahanbakhshi, Ahmad; Ghobadian, Barat

doi:10.1016/j.fuel.2020.117116

Cited by 88 publications

(30 citation statements)

References 42 publications

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“…Graphene quantum dots increased the torque and power output of the engine by 12% and 28% respectively when fueled with ethanol-biodiesel blends, with a considerable reduction (about 14%) in BSFC. The authors observed a significant reduction (about 30%) in the CO and HC emissions as compared to pure diesel operation [27]. Multi-walled carbon nanotube was mixed with jatropha biodiesel in various concentrations between 10-50 mg/l, a 16% improvement in BTE and 15% reduction in BSFC were observed for blended biodiesel as compared to pure biodiesel operation.…”

Section: Introductionmentioning

confidence: 95%

Microscopic characteristics of biodiesel – Graphene oxide nanoparticle blends and their Utilisation in a compression ignition engine

Nagaraja¹,

Rufuss

Hossain

2020

Renewable Energy

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Use of nano-additives in biofuels is an important R&D topic for achieving optimum engine performance with reduced emissions. In this study, rice bran oil was converted into biodiesel and graphene oxide (GO) nanoparticles were infused into biodiesel-diesel blends. Two blends containing (i) 5% biodiesel, 95% diesel and 30 ppm GO (B5D95GO30) and (ii) 15% biodiesel, 85% diesel and 30 ppm GO (B15D85GO30) were prepared. The fuel properties like heating value, kinematic viscosity, cetane number, etc. of the nanoadditives-biodieseldiesel blends (NBDB) were measured. Effects of injection timing (IT) on the performance, combustion and emission characteristics were studied. It was observed that both B15D85GO30 and B5D95GO30 blends at IT23º gave up to 13.5% reduction in specific fuel consumption. Compared to diesel, the brake thermal efficiency was increased by 7.62% for B15D85GO30 at IT23° and IT25°. An increase in IT from 23° to 25° deteriorated the indicated thermal efficiency by 6.68% for B15D85GO30. At maximum load condition, the peak heat release rates of NBDB were found to be lower than the pure diesel at both IT. The CO, CO2 & NOx emissions were reduced by 2-8%. The study concluded that B15D85GO30 at IT23° gave optimum results in terms of performance, combustion and emission characteristics.

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Section: Introductionmentioning

confidence: 95%

Microscopic characteristics of biodiesel – Graphene oxide nanoparticle blends and their Utilisation in a compression ignition engine

Nagaraja¹,

Rufuss

Hossain

2020

Renewable Energy

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“…However, reduction in UHC emission for B30FFO150 fuel is lower than B30FFO100, possibly because of the higher viscosity and density, which resulted in poor atomization and led to partial combustion of fuel ascribe to higher UHC formation. Researchers have declared in their intensive researches that nanoparticles' inclusion into diesel-biodiesel fuel blend decreased the discharge of UHC emission attributable to swift and comprehensive combustion of the fuel [38][39][40].…”

Section: Unburned Hydrocarbon (Uhc) Emissionmentioning

confidence: 99%

An Experimental Investigation on the Effect of Ferrous Ferric Oxide Nano-Additive and Chicken Fat Methyl Ester on Performance and Emission Characteristics of Compression Ignition Engine

et al. 2021

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In recent years, industries have been investing to develop a potential alternative fuel to substitute the depleting fossil fuels which emit noxious emissions. Present work investigated the effect of ferrous ferric oxide nano-additive on performance and emission parameters of compression ignition engine fuelled with chicken fat methyl ester blends. The nano-additive was included with various methyl ester blends at different ppm of 50, 100, and 150 through the ultrasonication process. Probe sonicator was utilized for nano-fuel preparation to inhibit the formation of agglomeration of nanoparticles in base fuel. Experimental results revealed that the addition of 100 ppm dosage of ferrous ferric oxide nanoparticles in blends significantly improves the combustion performance and substantially decrease the pernicious emissions of the engine. It is also found from an experimental results analysis that brake thermal efficiency (BTE) improved by 4.84%, a reduction in brake specific fuel consumption (BSFC) by 10.44%, brake specific energy consumption (BSEC) by 9.44%, exhaust gas temperature (EGT) by 19.47%, carbon monoxides (CO) by 53.22%, unburned hydrocarbon (UHC) by 21.73%, nitrogen oxides (NOx) by 15.39%, and smoke by 14.73% for the nano-fuel B20FFO100 blend. By seeing of analysis, it is concluded that the doping of ferrous ferric oxide nano-additive in chicken fat methyl ester blends shows an overall development in engine characteristics.

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“…Additionally, Aram Heidari-Maleni et al conducted a study aimed at determining the feasibility of using nanoparticles of graphene quantum dots on the performance of the diesel engine and the quality of exhaust gases in a mixture of ethanol and biodiesel [5]. A mixture of B10 with biodiesel with the introduction of nanoparticles with a total concentration of 30 particles per 1,000,000 was used as the investigated substance.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Optimization of Combustion Processes in the Engine of Combat Vehicles by Use of Disk Structure

et al. 2021

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This work analyzes the possibility of a provision of force-majeure mode of the combat vehicles with the aid of disk construction installed in the baffler, the base of the operation of which is the method of residual cyclical quadratic chain code of construction of the “windows” of the movable disk. To determine the optimal parameters of the moving disk of the rotor system, mathematical modeling was performed. The results of mathematical modeling were used to create a PC-based calculation program. The calculation was performed for the rotational frequency ω = 300 s−1 andfor harmonic numbers from 1 to 100. The waveforms used in simulation were as follows: quasi-trapezoidal and rectangular. It is established that at the number of “windows” m = 276 in the moving disk of the rotor system the radiation spectrum acquires a uniform distribution. The object of the research is the process of extreme burning of fuel material in the combat vehicles’ engines, ensuring, according to the technical possibilities of the engine, the implementation of the force-majeure mode of the combat vehicle in the whole. The quantitative and qualitative criteria of fullness of fuel material burning in the engine are chosen as the basis for the evaluation of the reaching of the force-majeure mode. The “flat noise” of the efflux is chosen as the basis of this evaluation. This method ensures the construction of the stochastic structure of “flat noise” in the engine efflux and, in that way, confirms the possibility of technical implementation of the force-majeure mode. The rotor system further ensures not only the force-majeure formation, but also reaches the minimum noise of the combat vehicle at the change of its dislocation. The research results can be further used to optimize the design of exhaust systems, which will reduce emissions.

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Performance improvement and exhaust emissions reduction in diesel engine through the use of graphene quantum dot (GQD) nanoparticles and ethanol-biodiesel blends

Cited by 88 publications

References 42 publications

Microscopic characteristics of biodiesel – Graphene oxide nanoparticle blends and their Utilisation in a compression ignition engine

Microscopic characteristics of biodiesel – Graphene oxide nanoparticle blends and their Utilisation in a compression ignition engine

An Experimental Investigation on the Effect of Ferrous Ferric Oxide Nano-Additive and Chicken Fat Methyl Ester on Performance and Emission Characteristics of Compression Ignition Engine

Investigation of Optimization of Combustion Processes in the Engine of Combat Vehicles by Use of Disk Structure

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