Laminar burning velocity of hydrogen–air premixed flames at elevated pressure
Experimental and numerical studies on the laminar burning velocity of hydrogen–air mixtures were performed. Measurements of laminar burning velocities were conducted using a new technique based on particle tracking velocimetry (PTV) and image processing for burner-stabilized flames in a high-pressur...
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| Veröffentlicht in: | Experimental thermal and fluid science 2000-03, Vol.21 (1), p.58-63 |
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| container_title | Experimental thermal and fluid science |
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| creator | Qin, Xiao Kobayashi, Hideaki Niioka, Takashi |
| description | Experimental and numerical studies on the laminar burning velocity of hydrogen–air mixtures were performed. Measurements of laminar burning velocities were conducted using a new technique based on particle tracking velocimetry (PTV) and image processing for burner-stabilized flames in a high-pressure chamber. Equivalence ratios of the mixtures were varied from 0.6 to 3.0 for the pressure range from 0.1 to 0.5 MPa. A numerical simulation was conducted considering detailed reaction mechanisms and transport properties. At high pressures, the experimental and numerical results agreed reasonably well with each other for mixtures of equivalence ratios of 1.0 and 2.0, while discrepancies were seen for the equivalence ratio 3.0. These discrepancies can be diminished effectively by modifying the rate-coefficient expressions of recombination reactions. |
| doi_str_mv | 10.1016/S0894-1777(99)00054-0 |
| format | Article |
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Measurements of laminar burning velocities were conducted using a new technique based on particle tracking velocimetry (PTV) and image processing for burner-stabilized flames in a high-pressure chamber. Equivalence ratios of the mixtures were varied from 0.6 to 3.0 for the pressure range from 0.1 to 0.5 MPa. A numerical simulation was conducted considering detailed reaction mechanisms and transport properties. At high pressures, the experimental and numerical results agreed reasonably well with each other for mixtures of equivalence ratios of 1.0 and 2.0, while discrepancies were seen for the equivalence ratio 3.0. These discrepancies can be diminished effectively by modifying the rate-coefficient expressions of recombination reactions.</abstract><pub>Elsevier Inc</pub><doi>10.1016/S0894-1777(99)00054-0</doi><tpages>6</tpages></addata></record> |
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| ispartof | Experimental thermal and fluid science, 2000-03, Vol.21 (1), p.58-63 |
| issn | 0894-1777 1879-2286 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Air Computer simulation High pressure effects High-pressure combustion Hydrogen Image processing Laminar burning velocity PTV Velocity measurement |
| title | Laminar burning velocity of hydrogen–air premixed flames at elevated pressure |
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