Experimental study on dual oxygenates (ethanol, n-butanol) with gasoline on MPFI engine performance and emission characteristics

Palani, Thennarasu; Esakkimuthu, Ganapathy Sundaram; Dhamodaran, Gopinath; Seetharaman, S.

doi:10.1007/s13762-023-04852-6

Cited by 13 publications

(4 citation statements)

References 43 publications

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“…This heat is absorbed from the cylinder walls during the compression stroke, thereby reducing the heat loss through the cylinder walls and increasing the brake thermal efficiency. In addition to the high latent heat of vaporisation of DMC, its inherently high oxygen content improved the combustion process, i.e., leading to a complete combustion process and eventually leading to improved brake thermal efficiencies [24,25]. DMC-gasoline blends have a higher-octane index (OI) and a higher charge cooling effect; this anti knock excellence is related to compactness, and the reduced HC emissions in the combustion process produced increased BTE.…”

Section: Performance Characteristicsmentioning

confidence: 99%

Enhancing performance and reducing emissions of a spark ignition engine by adding dimethyl carbonate to gasoline

Dhamodaran,

Esakkimuthu,

Palani

et al. 2024

Scientia Iranica

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Various alternative fuels have previously been investigated in light of growing concerns about environmental pollution and fuel depletion. In this study, the effects of dimethyl carbonate as an alternative oxygenate to gasoline on the performance, emissions, and combustion characteristics of an inline four-cylinder spark-ignited engine are investigated. Adding dimethyl carbonate to gasoline produced a higher Research octane number and oxygen percentage. The study found that using dimethyl carbonate/gasoline blends increased brake thermal efficiency and reduced unburned hydro carbons and carbon monoxide emissions. Furthermore, a mixture containing 30% dimethyl carbonate presented the engine's best performance and emission characteristics compared to gasoline. At higher engine speed, 8.95% higher brake thermal efficiency, 16.94% lesser HC, and 18.75% lesser CO than gasoline. A higher level of nitrogen oxide is produced by dimethyl carbonate/gasoline blends when compared to gasoline.The combustion stability and heat release rate produced by dimethyl carbonate/gasoline blends were higher than gasoline.

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Section: Performance Characteristicsmentioning

confidence: 99%

Enhancing performance and reducing emissions of a spark ignition engine by adding dimethyl carbonate to gasoline

Dhamodaran,

Esakkimuthu,

Palani

et al. 2024

Scientia Iranica

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“…11 Scientists and Engineers are concentrating on environmentally friendly energies. 12 They are also developing new enhanced fuel chemistry through manipulation and modification of fuel composition that could provide increased capacity along with emission control strategies on a global scale. Also electricity is another green energy source for the next generation zero-emission vehicle market.…”

Section: Introductionmentioning

confidence: 99%

“…The worldwide search for alternative fuels is intensifying in response to stricter exhaust emission standards and the depletion of conventional petroleum fuel 11 . Scientists and Engineers are concentrating on environmentally friendly energies 12 . They are also developing new enhanced fuel chemistry through manipulation and modification of fuel composition that could provide increased capacity along with emission control strategies on a global scale.…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology to optimize the emissions and performance of a dual fuel engine using diesel and dimethyl ether

Kumar

Yadav

2023

Env Prog and Sustain Energy

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In this study, the combustion and exhaust emission characteristics of a single‐cylinder, water‐cooled, four‐stroke VCR engine at a fixed CR were evaluated using DME and diesel with timed manifold injections of 2, 3, 4, and 5 ms for DME and conventional diesel settings. The investigational trials showed that DME has the capability to reduce NOx and OP while used in an optimized range and to have clean combustion characteristics. Induction of DME under low to medium load conditions resulted in a reduction in NOx, OP, and BTE with an increase in HC, whereas at higher load settings, NOx increased with an increase in diesel energy share. The dual fuel combustion was characterized by a short ignition delay, an early start of combustion, and increased in‐cylinder pressure due to the increased compression work input during the cycle. The absence of carbon–carbon bonds in DME molecules caused low soot emissions during dual fuel combustion. After experimentation, RSM was applied to the results for parametric optimization and found to be a useful tool for reducing the error as well as minimizing the number of trials. The optimum settings were achieved at 2 kW load and 4 ms duration, where the desirability function reached a value of 0.94189. The regression equations developed by the model were validated by 9 random experiments, and the error is found to be acceptable. The engine should be operated at medium load to control NOx, and the DME energy share should be low and near 50%.

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“…As a result, they found a 25% increase in volumetric efficiency and a 20% increase in engine power [20]. Palini et al, in their study on the effects of mixing gasolineethanol at various ratios and engine speeds, stated that thermal efficiency increased, CO and HC emissions decreased, but NOx emissio ns increased [21]. Turner et al after examining ethanol and methanol gasoline blends, concluded that alcohols could be used gradually due to the difficulty of mixing [22].…”

Section: Introductionmentioning

confidence: 99%

Simulation analysis of cycle skipping strategy in SI engine fueled with ethanol gasoline mixture

Gürbüz

2023

International Journal of Automotive Engineering and Technologies

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Researches are carried out with different methods to reduce the emissions emitted by conventional fuel engines. In addition to using alternative fuels, especially ethanol, in gasoline engines, fuel injection, and combustion controls are applied in various strategies. In this study, the effects of various cycle skipping strategies on emissions were analyzed through a numerical model of a single-cylinder naturally aspirated spark ignition (SI) engine. The validated model was fueled with an ethanol-gasoline blend with 30% ethanol content. The model engine was operated at partial load and 1500 rpm constant engine speed under Normal (N), 1N1S, 2N1S and 3N1S cycle skip strategies. NOx emission increased with all strategies due to increased in-cylinder temperature with more fuel depletion in ignition cycles. The BSFC decreased by 9.93%, 13.67% and 5.93% in the 1N1S, 2N1S and 3N1S cycle-skipping strategies, respectively. CO and HC emissions decreased with all cycle-skipping strategies compared to the normal cycle.

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Experimental study on dual oxygenates (ethanol, n-butanol) with gasoline on MPFI engine performance and emission characteristics

Cited by 13 publications

References 43 publications

Enhancing performance and reducing emissions of a spark ignition engine by adding dimethyl carbonate to gasoline

Enhancing performance and reducing emissions of a spark ignition engine by adding dimethyl carbonate to gasoline

Application of response surface methodology to optimize the emissions and performance of a dual fuel engine using diesel and dimethyl ether

Simulation analysis of cycle skipping strategy in SI engine fueled with ethanol gasoline mixture

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