Flow, Turbulence and Combustion

, Volume 89, Issue 2, pp 249–259 | Cite as

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

  • Henning Haessler
  • Henning Bockhorn
  • Christian Pfeifer
  • Dietmar Kuhn
Article
First Online:
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Accepted:

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.

Keywords

Auto-ignition Dimethyl ether Formaldehyde Low temperature oxidation Numerical simulation INSFLA 
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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Henning Haessler
    • 1
  • Henning Bockhorn
    • 1
  • Christian Pfeifer
    • 2
  • Dietmar Kuhn
    • 2
  1. 1.Engler-Bunte-Institute, Division of Combustion Technology (EBI-VBT)Karlsruhe Institute of TechnologyKarlsruheGermany
  2. 2.Institute for Nuclear and Energy TechnologiesKarlsruhe Institute of TechnologyEggenstein-LeopoldshafenGermany

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