Mathematical modeling for the performance and emission parameters of dual-fuel diesel engine using producer gas as secondary fuel

Dhole, Avinash; Yarasu, Ravindra Babu; Lata, D.B.; Baraskar, S. S.; Shaw, Deepika

doi:10.1007/s13399-014-0142-6

Cited by 18 publications

(6 citation statements)

References 21 publications

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“…High-resolution mass spectrometry analyses were performed according to the method described by Cruz et al [ 21 ]. A Nexera UHPLC system (Shimadzu, Kyoto, Japan) combined with a maXis high-resolution ESI-QTOF mass spectrometer (Bruker) controlled by the Compass 1.7 software package (Bruker).…”

Section: Methodsmentioning

confidence: 99%

“…The knowledge that plants have a variety of chemical constituents capable of inhibiting the cytopathic effect of viruses with different multiplication cycles makes it important to research natural products with this activity [ 16 ]. Our research group has shown that several species rich in phenolic compounds, such as flavonoids, are promising sources of substances with anti-ZIKV activity [ 17 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

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Anti–Zika Virus Activity and Isolation of Flavonoids from Ethanol Extracts of Curatella americana L. Leaves

et al. 2023

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The ethnomedicinal plant Curatella americana L. (Dilleniaceae) is a common shrub in the Brazilian Cerrado, whose ethanolic extract showed significant in vitro anti–Zika virus activity by the MTT colorimetric method. Currently, there is no drug in clinical use specifically for the treatment of this virus; therefore, in this work, the antiviral and cytotoxic properties of the ethanolic extract, fractions, and compounds were evaluated. The ethanolic extract of the leaves showed no cytotoxicity for the human MRC-5 cell and was moderately cytotoxic for the Vero cell (CC50 161.5 ± 2.01 µg/mL). This extract inhibited the Zika virus multiplication cycle with an EC50 of 85.2 ± 1.65 µg/mL. This extract was fractionated using the liquid–liquid partition technique, and the ethyl acetate fraction showed significant activity against the Zika virus with an EC50 of 40.7 ± 2.33 µg/mL. From the ethyl acetate fraction, the flavonoids quercetin-3-O-hexosylgallate (1), quercetin-3-O-glucoside (2), and quercetin (5) were isolated, and in addition to these compounds, a mixture of quercetin-3-O-rhamnoside (3) and quercetin-3-O-arabinoside (4) was also obtained. The isolated compounds quercetin and quercetin-3-O-hexosylgallate inhibited the viral cytopathic effect at an EC50 of 18.6 ± 2.8 and 152.8 ± 2.0, respectively. Additionally, analyses by liquid chromatography coupled to a mass spectrometer allowed the identification of another 24 minor phenolic constituents present in the ethanolic extract and in the ethyl acetate fraction of this species.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anti–Zika Virus Activity and Isolation of Flavonoids from Ethanol Extracts of Curatella americana L. Leaves

et al. 2023

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“…Selahaddin et al studied the gasoline−ethanol−hydrogen blend combustion in a intake port injection spark ignition (SI) engine. 33 The results showed that the addition of hydrogen to the gasoline−ethanol blend improved the combustion process and combustion efficiency, expanded the combustibility range of the gasoline−ethanol blend, and reduced emissions. Cyclic variation is an important parameter to evaluate the combustion stability of an engine.…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that, after blending 3% hydrogen to the intake air, the engine efficiency was improved, the lean-burn limit was extended, and cyclic variation was reduced. Selahaddin et al studied the gasoline–ethanol–hydrogen blend combustion in a intake port injection spark ignition (SI) engine . The results showed that the addition of hydrogen to the gasoline–ethanol blend improved the combustion process and combustion efficiency, expanded the combustibility range of the gasoline–ethanol blend, and reduced emissions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Hydrogen Addition Ratios on Cycle-by-Cycle Variations of a Duel-Fuel Spark Ignition Engine with Ethanol Intake Port Injection and Hydrogen Direct Injection under Various Excess Air Ratios

Zhao

Shi

et al. 2020

Energy Fuels

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To improve the combustion stability of an ethanol engine under lean-burn conditions, the experiment was carried out on a spark ignition engine with ethanol intake port injection and hydrogen direct injection. To study the effects of ignition timing, excess air ratio, and hydrogen addition ratio on cycle-by-cycle variations of an ethanol engine, five different ignition timings, five different excess air ratios, and five different hydrogen addition ratios were applied at a low speed of 1500 revolutions/min and small throttle opening of 9%. The experimental results showed that the cyclic variation of the peak in-cylinder pressure decreased with the advance of ignition timing and the cyclic variation of the indicated mean effective pressure decreased first and then increased. When the ignition timing is fixed at 10° crank angle before top dead center, the cyclic variation of the peak in-cylinder pressure, the peak pressure change rate, and the indicated mean effective pressure decreased with the increase of the hydrogen addition ratio. A 15% hydrogen addition can reduce the coefficient of variation of peak in-cylinder pressure by 75%. When the hydrogen addition ratio is 10%, the ethanol engine can run steadily under lean-burn conditions with an excess air ratio of 1.5.

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“…RSM is a proven technique which is has been used by several researchers in internal combustion (IC) engine studies [14]. Experiments carried out by Dhole et al to optimize DF engine performance when operating on diesel and hydrogen achieved a close proximity of 95% by using DOEs and multiple regression analysis [15]. Hirkude et al used RSM modeling to optimize values of IT, injector opening pressure (IOP), and CR as 27.8 o bTDC, 250 bar, and 17.99, respectively, on the performance of engines operating with waste fry oil methyl ester-diesel (WFOME-Diesel) blends with a maximum desirability of 0.778 [16].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations on Dual-Fuel Engine Fueled with Tertiary Renewable Fuel Combinations of Biodiesel and Producer—Hydrogen Gas Using Response Surface Methodology

et al. 2023

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The effects of producer gas (PG), hydrogen (H2), and neem oil methyl ester-blended fuel (NeOME B20) flow rate optimization on dual fuel (DF) engine performance were examined in the current work. PG and H2 were used as primary fuels, while NeOME B20 was used as a secondary pilot fuel in the DF engine. The DF engine’s performance and pollution levels were optimized using response surface methodology (RSM) and the results were compared with experimental values. The full factorial design (FFD) has been used to minimize the number of experiments. The design of experiments (DOEs) with an experimental design matrix of 27 distinct combinations were taken into consideration. The primary goal of the effort is to optimize different fuel flow rates for better brake thermal efficiency (BTE) and lower tail pipe exhaust pollutants. The developed RSM model is validated with experimental results for the selected fuel flow rates using a desirability approach. Experiments were carried out at a constant speed of 1500 rpm, compression ratio (CR) of 17.5, injector opening pressure (IOP) 240 bar, six-hole nozzle with 0.2 mm diameter, and injection timing (IT) of 27° before top dead center (bTDC). The flow rates of NeOME B20, PG, and H2 varied from 0.4 to 0.8 kg/h, 7 to 9 kg/h, and 0.029 to 0.059 kg/h, respectively. Optimum flow rates for NeOME B20, PG, and H2 were found to be 0.8, 7, and 0.044, kg/h respectively for the maximized break thermal efficiency (BTE) and reduced exhaust emission levels. However, a marginal increase in NOx was noticed. In addition, the delay period and combustion duration were reduced, and the cylinder pressure (CP) and heat release rate (HRR) were increased for the optimal condition with a desirability of 0.998. Overall, DF operation with selected fuel combinations was found to be smooth and satisfactory.

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Mathematical modeling for the performance and emission parameters of dual-fuel diesel engine using producer gas as secondary fuel

Cited by 18 publications

References 21 publications

Anti–Zika Virus Activity and Isolation of Flavonoids from Ethanol Extracts of Curatella americana L. Leaves

Anti–Zika Virus Activity and Isolation of Flavonoids from Ethanol Extracts of Curatella americana L. Leaves

Effects of Hydrogen Addition Ratios on Cycle-by-Cycle Variations of a Duel-Fuel Spark Ignition Engine with Ethanol Intake Port Injection and Hydrogen Direct Injection under Various Excess Air Ratios

Experimental Investigations on Dual-Fuel Engine Fueled with Tertiary Renewable Fuel Combinations of Biodiesel and Producer—Hydrogen Gas Using Response Surface Methodology

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