Effects of oxygen enrichment on diesel spray flame soot formation in O2/Ar atmosphere

Wang, Yu; Liu, Haifeng; Feng, Lei; Maes, Noud; Fang, Tiegang; Cui, Yanqing; Yi, Wentao; Somers, Bart; Yao, Mingfa

doi:10.1016/j.combustflame.2023.113244

Cited by 7 publications

(1 citation statement)

References 48 publications

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“…They studied the effects of fuel composition, diluent gases (CO 2 , H 2 O, N 2 ), and pressure on flame characteristics, such as dominant chain reactions, flame temperatures, and NO x emissions. − Moreover, the flammability limits were mapped based on strain rates, pressure, and diluent percentages . In addition, similar studies also exist for other common fuels, such as methanol and diesel. − …”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Counterflow Diffusion Flame of CO/H₂ in Oxyfuel Combustion: Effects of H₂O as Diluent at High Strain Rates

Guo,

Schulze-Netzer,

Ertesvåg

2024

Energy Fuels

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The maximum water as a diluent in the nonpremixed flame is quantified, mimicking combustion cooling by evaporation. Simulations with Cantera, using established chemical mechanisms, were conducted with various mass flux rates of fuel, equivalence ratios, fuel compositions, pressures, and inlet temperatures of the fuel. More water and lower flame temperature promote the forward reaction H + O 2 + (M) ↔ HO 2 + (M) but demote H + O 2 ↔ O + OH. Eventually, the heat generated by the first of these reactions could not compensate for the reduced contribution from H + OH + M ↔ H 2 O + M, making the flame unable to sustain itself. A linear dependency was found between the flammability limit and the strain rate of the flame. The fuel composition and inlet temperature presented an insignificant impact on the flammability limit. Higher pressure prevented the flame from extinction as more water was added to the oxidizer. Under the reference configuration, the flammability limit was found at an H 2 O mole fraction of 0.75 in the oxidizer.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Counterflow Diffusion Flame of CO/H₂ in Oxyfuel Combustion: Effects of H₂O as Diluent at High Strain Rates

Guo,

Schulze-Netzer,

Ertesvåg

2024

Energy Fuels

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Evaluation of fuel spray ignition delay behavior using a two-stage Lagrangian model

Wang,

Bao,

Somers

et al. 2024

Combustion and Flame

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Effects of ambient oxygen concentrations on pollutants formation in premixed natural gas ignited by pilot diesel spray: Large-eddy simulations

Wei,

Zhang,

Zhou

et al. 2024

Fuel

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Effects of oxygen enrichment on diesel spray flame soot formation in O2/Ar atmosphere

Cited by 7 publications

References 48 publications

Numerical Investigation of the Counterflow Diffusion Flame of CO/H₂ in Oxyfuel Combustion: Effects of H₂O as Diluent at High Strain Rates

Numerical Investigation of the Counterflow Diffusion Flame of CO/H₂ in Oxyfuel Combustion: Effects of H₂O as Diluent at High Strain Rates

Evaluation of fuel spray ignition delay behavior using a two-stage Lagrangian model

Effects of ambient oxygen concentrations on pollutants formation in premixed natural gas ignited by pilot diesel spray: Large-eddy simulations

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Effects of oxygen enrichment on diesel spray flame soot formation in O2/Ar atmosphere

Cited by 7 publications

References 48 publications

Numerical Investigation of the Counterflow Diffusion Flame of CO/H2 in Oxyfuel Combustion: Effects of H2O as Diluent at High Strain Rates

Numerical Investigation of the Counterflow Diffusion Flame of CO/H2 in Oxyfuel Combustion: Effects of H2O as Diluent at High Strain Rates

Evaluation of fuel spray ignition delay behavior using a two-stage Lagrangian model

Effects of ambient oxygen concentrations on pollutants formation in premixed natural gas ignited by pilot diesel spray: Large-eddy simulations

Contact Info

Product

Resources

About

Numerical Investigation of the Counterflow Diffusion Flame of CO/H₂ in Oxyfuel Combustion: Effects of H₂O as Diluent at High Strain Rates

Numerical Investigation of the Counterflow Diffusion Flame of CO/H₂ in Oxyfuel Combustion: Effects of H₂O as Diluent at High Strain Rates