STEREO-PIV ANALYSIS OF THE LOW-SWIRL FLOW ABOVE A PARTIAL OXIDATION BURNER

A partial oxidation burner is introduced as a cleaning system for the tar content of (bio) fuel. The low-swirl (S ≈ 0.2) flow at the burner outlet is studied using Stereo Particle Image Velocimetry. After calibration the experimental setup is capable of resolving all three velocity components. The p...

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Bibliographic Details
Published in:Combustion science and technology 2006-09, Vol.178 (9), p.1541-1557
Main Authors: LANGE, H. C. DE, HOUBEN, M. P., STEENHOVEN, A. A. VAN
Format: Article
Language:English
Subjects:
Applied sciences
Combustion of gaseous fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Furnaces. Firing chambers. Burners
Gaseous fuel burners and combustion chambers
low-swirl
partial-oxidation
stereo-PIV
Theoretical studies. Data and constants. Metering
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Summary:A partial oxidation burner is introduced as a cleaning system for the tar content of (bio) fuel. The low-swirl (S ≈ 0.2) flow at the burner outlet is studied using Stereo Particle Image Velocimetry. After calibration the experimental setup is capable of resolving all three velocity components. The presented results show that the averaged coreflow vortex has the characteristics of a solid body rotation. After leaving the burner outlet the swirl number rapidly decreases from about 0.2 to 0.07. The turbulent kinetic energy has also been resolved and shows that the fluctuations are concentrated around the flow center line at levels of 5-10%. The velocity field is homogeneously mixed at about 40 mm above the burner outlet.
ISSN:0010-2202
1563-521X
DOI:10.1080/00102200500325314