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Formaldehyde-LIF of Dimethyl Ether During Auto-ignition at Elevated Pressures

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Abstract

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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Authors and Affiliations

  1. Engler-Bunte-Institute, Division of Combustion Technology (EBI-VBT), Karlsruhe Institute of Technology, Engler-Bunte-Ring 1, 76131, Karlsruhe, Germany

    Henning Haessler & Henning Bockhorn

  2. Institute for Nuclear and Energy Technologies, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany

    Christian Pfeifer & Dietmar Kuhn

Authors
  1. Henning Haessler
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  2. Henning Bockhorn
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  3. Christian Pfeifer
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  4. Dietmar Kuhn
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Correspondence to Henning Haessler.

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Haessler, H., Bockhorn, H., Pfeifer, C. et al. Formaldehyde-LIF of Dimethyl Ether During Auto-ignition at Elevated Pressures. Flow Turbulence Combust 89, 249–259 (2012). https://doi.org/10.1007/s10494-011-9374-8

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  • DOI: https://doi.org/10.1007/s10494-011-9374-8

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