Projects per year
Abstract
Low NOx strategies usually include lean combustion in order to reduce the flame temperature. Under certain conditions, this interaction can occur periodically as thermo-acoustic coupling, a reason why new premix combustion systems tend to have oscillations. Ongoing developments have pushed the sensitivity for density fluctuation measurements using laser vibrometers. In this experiment a variable geometry burner was enclosed in a liner, with the flame optically accessible through four fused silica windows. By this burner with adjustable flame conditions the cavity
of the atmospheric model combustion chamber was excitable at a frequency around 200Hz. Resonant and non-resonant flame conditions were investigated and compared by laser vibrometer interferometry, schlieren visualization and OH*/CH* chemiluminescence
of the atmospheric model combustion chamber was excitable at a frequency around 200Hz. Resonant and non-resonant flame conditions were investigated and compared by laser vibrometer interferometry, schlieren visualization and OH*/CH* chemiluminescence
Original language | English |
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Title of host publication | Proceedings 17th International Symposium on Application of Laser Techniques to Fluid Mechanics |
Pages | 04.7_1_53-04.7_1_53 |
Number of pages | 18 |
Publication status | Published - 2014 |
Event | 17th International Symposium on Application of Laser Techniques to Fluid Mechanics - Lisboa, Portugal Duration: 7 Jul 2014 → 10 Jul 2014 |
Conference
Conference | 17th International Symposium on Application of Laser Techniques to Fluid Mechanics |
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Country/Territory | Portugal |
City | Lisboa |
Period | 7/07/14 → 10/07/14 |
Fields of Expertise
- Mobility & Production
- Sustainable Systems
Treatment code (Nähere Zuordnung)
- Basic - Fundamental (Grundlagenforschung)
- Application
- Experimental
Fingerprint
Dive into the research topics of 'Frequency resolved interferometric detection of local density fluctuations in flames'. Together they form a unique fingerprint.Projects
- 3 Finished
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FWF - Thermoac. Oscillations - Interferometric Detection of Thermoacoustic Oscillations in Flames
1/06/12 → 31/05/16
Project: Research project
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Development of optical techniques for flow testing in turbomachinery
Schennach, O., Göttlich, E. & Woisetschläger, J.
1/01/04 → 31/12/05
Project: Research project
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Optical Metrology and Optical Diagnostics for Flow and Vibration Analysis
Neger, T., Lang, H., Brenn, G., Woisetschläger, J., Mayrhofer, N., Hipp, M., Göttlich, E. & Hampel, B.
1/01/95 → 31/01/22
Project: Research area