0
Research Papers: Gas Turbines: Combustion, Fuels, and Emissions

Investigation of Auto-Ignition of a Pulsed Methane Jet in Vitiated Air Using High-Speed Imaging Techniques

[+] Author and Article Information
W. Meier

Institute of Combustion Technology, German Aerospace Center (DLR), Pfaffenwaldring 38, D-70569 Stuttgart, Germanywolfgang.meier@dlr.de

I. Boxx

Institute of Combustion Technology, German Aerospace Center (DLR), Pfaffenwaldring 38, D-70569 Stuttgart, Germanyisaac.boxx@dlr.de

C. Arndt

Institute of Combustion Technology, German Aerospace Center (DLR), Pfaffenwaldring 38, D-70569 Stuttgart, Germanychristoph.arndt@dlr.de

M. Gamba

Department of Mechanical Engineering, Stanford University, Building 530, 440 Escondido Mall, Stanford, CA 94305-3030mirkog@stanford.edu

N. Clemens

Department of Aerospace Engineering and Engineering Mechanics, University of Texas at Austin, Austin, TX 78712clemens@mail.utexas.edu

J. Eng. Gas Turbines Power 133(2), 021504 (Oct 28, 2010) (6 pages) doi:10.1115/1.4002014 History: Received April 13, 2010; Revised April 16, 2010; Published October 28, 2010; Online October 28, 2010

An experimental arrangement for the investigation of auto-ignition of a pulsed CH4 jet in a coflow of hot exhaust gas from a laminar lean premixed H2/air flame at atmospheric pressure is presented. The ignition events were captured by high-speed imaging of the OH chemiluminescence associated with the igniting flame kernels at a frame rate of 5 kHz. The flow-field characteristics were determined by high-speed particle image velocimetry and Schlieren images. Furthermore, high-speed imaging of laser-induced fluorescence of OH was applied to visualize the exhaust gas flow and the ignition events. Auto-ignition was observed to occur at the periphery of the CH4 jet with high reproducibility in different runs concerning time and location. In each measurement run, several hundred consecutive single shot images were recorded from which sample images are presented. The main goals of the study are the presentation of the experimental arrangement and the high-speed measuring systems and a characterization of the auto-ignition events occurring in this system.

FIGURES IN THIS ARTICLE
<>
Copyright © 2011 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic drawing of the burner

Grahic Jump Location
Figure 2

Two image sequences from different OH∗ chemiluminescence measurements each comprising four frames. The time interval between the images is 0.2 ms.

Grahic Jump Location
Figure 3

Two image sequences from different OH laser-induced fluorescence measurements. The time interval between the images is 0.2 ms.

Grahic Jump Location
Figure 4

Image sequence from the Schlieren measurements. The time interval between the displayed images is 0.2 ms.

Grahic Jump Location
Figure 5

Image sequence of the planar velocity field for the axial velocity component. The time interval between the images is 0.2 ms.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In