Reduction of Jet Engine Exhaust Smoke with Fuel Additives

Shayeson, M. W.

doi:10.4271/670866

Cited by 9 publications

(3 citation statements)

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“…Metal additives, such as manganese (Mn) and barium (Ba), can react with water vapor above 1500 K to produce OH radicals, which enhance the soot oxidation . Meanwhile, the metal acts as a catalyst to lower the oxidation temperature . However, metal-based additives easily produce harmful metal emissions, such as lead or manganese pollution that adversely affects the engine operation .…”

Section: Introductionmentioning

confidence: 99%

“…26 Meanwhile, the metal acts as a catalyst to lower the oxidation temperature. 27 However, metal-based additives easily produce harmful metal emissions, such as lead or manganese pollution that adversely affects the engine operation. 28 bioalcohols have been proved as effective additives for soot inhibition, in which OH radicals from alcohol can oxidize the precursors of soot particles.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Methanol Additives on Soot Inhibition during n-Decane Pyrolysis

Liu

Huo

Zhang

et al. 2022

Ind. Eng. Chem. Res.

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The soot emission during fuel pyrolysis is harmful to the human health, environment, and engine fuel efficiency. In this work, the effect of methanol addition on soot inhibition of n-decane pyrolysis was investigated both theoretically and experimentally. Thermal cracking and coking experiments of n-decane show that the coke mass decreases significantly with methanol addition. Molecular dynamics (MD) simulations indicate that the oxidative radicals (OH, HCO, and CH2OH) from the methanol additive will oxidize the key precursors (such as C2H2, C3H3, and C5H5) of polycyclic aromatic hydrocarbons (PAHs) to stable oxides. Six key reactions were determined and found to play a key role in inhibiting the soot formation. The corresponding kinetic parameters were calculated at the CCSD(T)/CBS level for kinetic simulations by adding to the CRECK model. The simulation results show that the mole fractions of C2H2, C3H3, C5H5, and BINs decrease significantly with methanol addition. It indicates that the methanol addition can inhibit the soot formation, which is in good agreement with the experimental findings. We hope that this comprehensive work can provide significant information for soot inhibition.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Methanol Additives on Soot Inhibition during n-Decane Pyrolysis

Liu

Huo

Zhang

et al. 2022

Ind. Eng. Chem. Res.

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“…1 The fuel contamination can also affect the aircraft engines, and it may not be evident until the aircraft has been airborne. The potential sources of fuel contamination are particulates, 2 water, 3 other petroleum products 4 and microbial growth in the fuel. 5,6 The main source of particulate contamination is rust and scale from the surfaces of fuel tanks and pipes which are made of steel or alloys.…”

Section: Introductionmentioning

confidence: 99%

A method of prioritizing quality improvement in aviation refuelling services at airport

Ruamchat

Thawesaengskulthai

Pongpanich

2017

Advances in Mechanical Engineering

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There has been growing emphasis on quality measures and process analysis techniques that may be implemented in the daily practice of aviation refuelling to improve the overall quality of safety care. The quality assessment and process controls are most effective when used to determine the level of execution proficiency against the standard of aviation fuel quality control and handling. In this article, we have developed the quality assessment tools, control charts and new key indicator to prioritize the quality improvement that should be actionable and specific to guide process improvement efforts successively. Changing from a regular visual check to an automatic visual inspection tool, as well as from a pass/fail criteria to a satisfaction scale from 1 to 10 in the control, produces systematic data. Control charts are an effective way to separate a change in the process, so the user can focus on issues that are more likely to improve quality and safety. Our proposed quality assessment tools, process control and quality improvement prioritization were used to provide continuous feedback on the aviation refuelling service's capability to exceed the standards.

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Emissions from Gas-Turbine-Type Combustors

Friswell

1972

Emissions From Continuous Combustion Systems

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Reduction of Jet Engine Exhaust Smoke with Fuel Additives

Cited by 9 publications

References 0 publications

Effect of Methanol Additives on Soot Inhibition during n-Decane Pyrolysis

Effect of Methanol Additives on Soot Inhibition during n-Decane Pyrolysis

A method of prioritizing quality improvement in aviation refuelling services at airport

Emissions from Gas-Turbine-Type Combustors

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