Investigations of Engine Exhaust Gas Emission With Oxygen Enriched Mixture and High Exhaust Gas Recirculation

Mitianiec, W.; Śliwiński, Krzysztof

doi:10.5604/12314005.1133221

Cited by 2 publications

(3 citation statements)

References 9 publications

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“…This cooling effect is due to a pressure drop from 180 psi to atmospheric pressure. Because of the improper design of the mixing chamber, the amount of air could not be adjusted, thus resulting in incomplete combustion [18,19]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Comparative Analysis of Exhaust Emission of Retrofitted SI Engine Runs by Different Fuels

Khan,

Kaiser,

Nur

2024

IOP Conf. Ser.: Mater. Sci. Eng.

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The purpose of this study was to experimentally inspect the pollutant emission of a retrofitted SI engine using octane, compressed natural gas, and liquefied petroleum gas fuels operated at different speeds. The study was conducted using a retrofitted SI engine. The engine was coupled with an exhaust gas analyzer to measure the composition of the exhaust emission gas. The results showed that the carbon dioxide (CO2) and carbon monoxide (CO) content is lower when CNG is used compared to octane. The CO2 emission was even lower for LPG than CNG, as LPG has a lower carbon-energy ratio and higher octane quality than LPG and burns faster as a lean mixture. The O2 emission supports that octane and CNG burn as a lean mixture whereas LPG burns as rich. Again, the HC emissions are more prominent and CO emissions are higher for LPG than CNG. Because, it showed incomplete combustion with LPG as fuel due to inappropriate air-fuel mixture in the gas-air mixing chamber, which was specifically designed for CNG. Nitrogen oxide (NOx) emission was minimal when the engine was operated with LPG due to incomplete combustion, and it was found maximum for octane, where medium NOx content was found in the case of CNG. Moreover, the relative air fuel ratio or excess air factor, λ increased as the engine operating speed was raised. Because at high speed, there is some turbulence effect and increased combustion duration.

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Section: Resultsmentioning

confidence: 99%

Comparative Analysis of Exhaust Emission of Retrofitted SI Engine Runs by Different Fuels

Khan,

Kaiser,

Nur

2024

IOP Conf. Ser.: Mater. Sci. Eng.

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“…It was also observed that BSFC decreased by 11% to 18% at higher percentage of oxygen at all load conditions. Simulation test was conducted by Wladyslaw Mitianiec and Krzysztof Sliwinski [5]. Simulation test indicated the nonlinear variation of mole fractions of carbon dioxide and carbon monoxide at various amount of oxygen by volume.…”

Section: Discussionmentioning

confidence: 99%

“…Research by Wladyslaw Mitianiec and Krzysztof Sliwinski [5] determines the emission of toxic exhaust gases like CO and CO2 from multi cylinder spark ignition engine before and after oxygen enrichment.The concentration of oxygen was increased from 21% to 32%.By appling EGR i.e exhaust gas recirculation system,the tempreture of the cylinder decreasd by great extent.Experiments were done on air cooled 2-cylinder 4-stroke spark ignition engine with different amout of oxygen and EGR ratios in order to reduce the NOX emmisions and tempreture of the cylinder during combustion process. By using data which was obtained by performing various tests on the dynamometer,the simulation process was carried out.…”

Section: Literature Review This Section Includes Background and Vmentioning

confidence: 99%

Performance Enhancement of Multi Cylinder Internal Combustion Engine by Oxygen Enrichment: A Critical Review

Waghmare¹,

Padolkar²,

Tekale³

et al. 2016

IJERT

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We, human beings are finding the solutions on energy crisis. It may be in terms of Alternate Energy sources, Increase in Efficiency or Saving of Fuel. For proper combustion carbon from fuel having good calorific value and sufficient amount of oxygen from atmospheric air is required. But as we know we get only 21% Oxygen and about 79% of other gases which produces pollutants like Carbon Monoxide, Nitrogen oxide, Hydrocarbons, Nitric oxide, Sulphur dioxide etc. Oxygenized air helps in proper combustion with reduction in the volume of flue gases and greenhouse effect. This is effective method for reducing CO, HC without significant increase in NOx. Oxygen enrichment also results in rapid combustion of fuel which increases power output, mechanical efficiency and volumetric efficiency with increased amount of heat generation.

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Investigations of Engine Exhaust Gas Emission With Oxygen Enriched Mixture and High Exhaust Gas Recirculation

Cited by 2 publications

References 9 publications

Comparative Analysis of Exhaust Emission of Retrofitted SI Engine Runs by Different Fuels

Comparative Analysis of Exhaust Emission of Retrofitted SI Engine Runs by Different Fuels

Performance Enhancement of Multi Cylinder Internal Combustion Engine by Oxygen Enrichment: A Critical Review

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