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Formaldehyde-LIF of Dimethyl Ether During Auto-ignition at Elevated Pressures
被引:6
|作者:
Haessler, Henning
[1
]
Bockhorn, Henning
[1
]
Pfeifer, Christian
[2
]
Kuhn, Dietmar
[2
]
机构:
[1] Karlsruhe Inst Technol, Engler Bunte Inst, Div Combust Technol EBI VBT, D-76131 Karlsruhe, Germany
[2] Karlsruhe Inst Technol, Inst Nucl & Energy Technol, D-76344 Eggenstein Leopoldshafen, Germany
关键词:
Auto-ignition;
Dimethyl ether;
Formaldehyde;
Low temperature oxidation;
Numerical simulation;
INSFLA;
LASER-INDUCED FLUORESCENCE;
LOW-TEMPERATURE OXIDATION;
REACTION-KINETICS;
ALTERNATIVE FUEL;
COMBUSTION;
DME;
METHANE;
ENGINE;
COMPRESSION;
HCCI;
D O I:
10.1007/s10494-011-9374-8
中图分类号:
O414.1 [热力学];
学科分类号:
摘要:
The present work describes the imaging of laser induced fluorescence (LIF) of formaldehyde in a high pressure/high temperature atmosphere. Gaseous dimethyl ether (DME) is injected at 70 bar into the combustion chamber. Formaldehyde is detected by its fluorescence from excitation using the third harmonic of a Nd:YAG-laser with a wavelength of 355 nm at chamber pressures of 20, 30 and 40 bar. The experimental results are compared to 1D flamelet simulation of the auto-ignition processes applying a detailed reaction mechanism for DME. The results reveal a very good accordance to the experimental findings.
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页码:249 / 259
页数:11
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