Performance and emission reduction characteristics of cerium oxide nanoparticle-water emulsion biofuel in diesel engine with modified coated piston

Venkatesan, Elumalai Perumal; Kandhasamy, Annamalai; Sivalingam, A.; Kumar, Appuraja Senthil; Ramalingam, Krishnamoorthy; Joshua, Paul James Thadhani; Balasubramanian, Dhinesh

doi:10.1007/s11356-019-05773-z

Cited by 66 publications

(26 citation statements)

References 39 publications

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“…Effect of temperature and pH on the synthesis of AgNPs was investigated by varying the the temperature (15-40 °C) and pH (3)(4)(5)(6)(7)(8)(9). To obtained the desired pH value of fungal extract NaOH and HCl was used prior to the addition of silver nitrate.…”

Section: Optimization Of Physio-chemical Parameters For Agnps Synthesismentioning

confidence: 99%

“…Synthesis of nanoparticles has gained attention due to their applications in multiple fields such as antifungal agents, antibacterial agents, biosensor, bioremediation, anticancer, drug delivery, etc. [3][4][5][6][7][8][9][10]. In addition to this, unique properties of nanoparticles such as size, shape, surface to volume ratio, high catalytic activity, etc.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Extracellular synthesis of silver nanoparticles using entomopathogenic fungus: characterization and antibacterial potential

Tyagi¹,

Tyagi²,

Gola³

et al. 2019

SN Appl. Sci.

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Present study involves the simple, rapid, non-toxic and in vitro method of extracellular silver nanoparticles synthesis using Entomopathogenic fungus (Beauveria bassiana). The development of silver nanoparticle in fungal supernatant was confirmed by the absorbance peak at 450 nm in UV-Vis spectrophotometer. Further, presence of AgNPs and its crystal lattice was confirmed by EDS and XRD, respectively. TEM micrograph confirmed the presence of differently shaped (triangular, circular, hexagonal) nanoparticles with size ranging from 10 to 50 nm. Variable shape and size of fungal assisted AgNps was also confirmed in SEM study. The optimal pH and temperature for biosynthesis of nanoparticles was found to be 6.0 and 25 °C, respectively. The continuous effects of AgNPs against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus in time dependent manner was confirmed in growth kinetic studies. During 36 h of growth study, maximum reduction in O.D 560 was found in E. coli (67.2%) followed by P. aeruginosa (63.3%) and S. aureus (56.8%) at 30 °C. The MIC values of fungal assisted AgNPs against E. coli, P. aeruginosa and S. aureus was found to be 2.5, 3 and 4.5 ppm, respectively. The MIC values of Ciprofloxacin was observed to be 0.5, 0.5 and 0.7 ppm, whereas MICs of AgNPs + Ciprofloxacin showed 0.4, 0.4, 0.5 ppm against E. coli, P. aeruginosa and S. aureus, respectively, clearly highlighting the synergistic effect of AgNPs in combination with Ciprofloxacin. In the view of challenges for developing antimicrobial nanoparticles of variable shape and size by various other methods, tuning nanoparticles synthesis via fungi can be a wonderful approach to resolve existing hurdles.

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Section: Optimization Of Physio-chemical Parameters For Agnps Synthesismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Extracellular synthesis of silver nanoparticles using entomopathogenic fungus: characterization and antibacterial potential

Tyagi¹,

Tyagi²,

Gola³

et al. 2019

SN Appl. Sci.

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“…(Sajeevan & Sajith, 2013;Xin et al, 2013 reported that the use of CeO 2 NPs in B30 and B40 biodiesel blend improved performance with reduced emissions. Venkatesan et al (Venkatesan et al, 2019) conducted experiments and tested the performance and emissions of a biodiesel fuelled engine. They used lemongrass biodiesel with 30 ppm CeO 2 NPs as additive.…”

Section: Use Of Cerium Oxide Nanoparticlesmentioning

confidence: 99%

“…When NPs are added to the fuel blend, it improves the atomization and distribution of fuel due to increased heat transfer characteristics. (Akram et al, 2019;Kumar et al, 2020;Venkatesan et al, 2019) Compared to CeO 2 , Al 2 O 3 has higher thermal conductivity, which helps as a heat carrier between the fuel droplets. CeO 2 has more influence on combustion of fuel by reducing carbon activation temperature.…”

Section: Co Emissionmentioning

confidence: 99%

Impact of alumina and cerium oxide nanoparticles on tailpipe emissions of waste cooking oil biodiesel fuelled CI engine

Dinesha

Mohan

2021

Cogent Engineering

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Biofuels are one of the most sought-after renewable energy sources to overcome the current energy crisis in the world. Diesel blended with esters derived from oils has shown appreciable results for its use in compression ignition engines. In this work, B20 (20% biodiesel + 80% diesel by volume) fuel blend comprising 80% diesel and 20% biofuel extracted from waste cooking oil is used as a fuel. Two different metallic oxide nanoparticles (NPs), namely, cerium oxide (CeO 2 ) and aluminium oxide (Al 2 O 3 ) each having size of 30 nm, are dispersed in B20 biodiesel blend and used to investigate their combined influence on engine combustion. Experiments are conducted to study the engine exhaust emissions of a single cylinder four-stroke diesel engine running at constant speed of 1,500 rpm with varying engine loads. Experiments are carried out with B20 fuel and adding mixtures of CeO 2 and Al 2 O 3 nanoparticles in 50-30, 40-40 and 30-50 ppm, respectively, to B20 biodiesel blend. Responses recorded are the emissions of CO, HC, CO 2 , NOx and smoke. The results reveal that, on adding the nanoparticles, the engine observed a smooth combustion with reduction in the exhaust emissions compared to neat B20 biodiesel operation. B20 blend with 50 ppm of CeO 2 and 30 ppm of Al 2 O 3 nanoparticles showed lower exhaust emissions compared to other fuel blends. For the best fuel blend, CO, HC, NOx and smoke are reduced by 57.3%, 22.3%, 24.3% and 7.36%, respectively, compared to neat B20 operation.

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“…Catalytic action of CeO 2 nanoparticles also ensure the efficient combustion. (Perumal Venkatesan et al, 2019;Shanmugam et al, 2020) These factors contribute for reduced HC emission. For the normal FIT and retarded FIT, fuel preparation will be affected resulting in higher delay period.…”

Section: Hydrocarbon (Hc) Emissionmentioning

confidence: 99%

Combined influence of fuel injection strategy and nanoparticle additives on the performance and emission characteristics of a biodiesel fueled engine

Dinesha

2021

Cogent Engineering

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Waste cooking oil (WCO) biodiesel is becoming promising fuel for compression ignition (CI) engines. Due to the poor thermal efficiency, engine modifications and fuel modifications have been adopted over the years to enhance the performance. In the current study, performance from the biodiesel engine at different injection timing has been studied using waste cooking oil biodiesel mixed with cerium oxide (CeO 2 ) nanoparticles as additives. Experiments are conducted at normal injection timing (27 °bTDC), advanced (30 °bTDC) and retarded injection timing (24 °bTDC) using B20 fuel blended with 80 ppm of nanoparticles. Studies indicated that advancing the injection timing, results in higher brake thermal efficiency (BTE) and reduced brake specific fuel consumption (BSFC) for B20 fuel with nanoparticles as compared to fuel without the use of nanoparticles. Smoke, CO and HC emissions reduced on progressing the injection timings, whereas delaying injection timing shows decreased NOx emissions. By advancing the injection timing and adding CeO 2 nanoparticles to the blend, BTE is increased by 10.9% and BSFC reduced by 11.1% as compared to the neat B20 biodiesel operation. HC and smoke emissions are 35.4% and 14.2%, respectively, reduced for advancing the injection timing with the adding cerium oxide nano particles to the fuel as compared with clean WCO ester with the absence of nanoparticles. Advancing fuel injection timing has no positive influence on the reduction of NOx.

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Performance and emission reduction characteristics of cerium oxide nanoparticle-water emulsion biofuel in diesel engine with modified coated piston

Cited by 66 publications

References 39 publications

Extracellular synthesis of silver nanoparticles using entomopathogenic fungus: characterization and antibacterial potential

Extracellular synthesis of silver nanoparticles using entomopathogenic fungus: characterization and antibacterial potential

Impact of alumina and cerium oxide nanoparticles on tailpipe emissions of waste cooking oil biodiesel fuelled CI engine

Combined influence of fuel injection strategy and nanoparticle additives on the performance and emission characteristics of a biodiesel fueled engine

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