Observations of Flame Behavior in a Laboratory-Scale Premixed Natural Gas/Air Gas Turbine Combustor From Planar Laser Induced Fluorescence Measurements of OH, Laser Doppler Anemometer Velocity Measurements, and Coherent Anti-Stokes Roman Spectrometer Temperature Measurements

2004 ◽  
Vol 127 (4) ◽  
pp. 724-739 ◽  
Author(s):  
Paul O. Hedman ◽  
Thomas H. Fletcher ◽  
Daniel V. Flores ◽  
Stewart G. Graham ◽  
Jason K. Haslam ◽  
...  

Instantaneous planar laser induced fluorescence (PLIF) images of OH, simultaneous axial/radial and axial/tangential velocity measurements with an LDA (laser Doppler anemometer), and instantaneous gas temperature measurements using a coherent anti-Stokes Raman spectrometer (CARS) were obtained in a pre-mixed, swirl-stabilized laboratory-scale combustor, fired with natural gas. Four operating conditions were examined (two swirl conditions and equivalence ratios of 0.80 and 0.65). The instantaneous PLIF images of OH illustrate the chaotic nature of the turbulent flame eddies. Mean and standard deviations of each variable were measured at different locations in the flame, along with probability density functions. Stability of the flame at each condition is related to measurements in the central and side recirculation zones.

AIAA Journal ◽  
2000 ◽  
Vol 38 (9) ◽  
pp. 1769-1772 ◽  
Author(s):  
P. C. Palma ◽  
S. G. Mallinson ◽  
S. B. O’Byrne ◽  
P. M. Danehy ◽  
R. Hillier

Author(s):  
Paul O. Hedman ◽  
Daniel V. Flores ◽  
Thomas H. Fletcher

This objective of this study was to obtain instantaneous gas temperature measurements using a coherent anti-Stokes Raman spectrometer (CARS) in a laboratory-scale, gas-turbine combustor (LSGTC) with a pre-mixed, swirl-stabilized, natural gas flame. These measurements complement PLIF measurements of OH radical, and LDA measurements of velocity which are presented in companion papers [1,2]. Gas temperature measurements were obtained at each of four operating conditions (high swirl and medium swirl at fuel equivalence ratios of 0.80 and 0.65). Results of mean and standard deviation measurements are included in this paper for all four test cases. Additionally, example probably density functions (PDF) for the gas temperature at the 40 mm, 60 mm, and 80 mm axial locations are presented for the for the high swirl (HS) φ = 0.80 case (most stable flame) and the medium swirl (MS) φ = 0.65 case (least stable flame).


AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 678-686
Author(s):  
G. Gauba ◽  
K. G. Klavuhn ◽  
J. C. McDaniel ◽  
K. G. Victor ◽  
R. H. Krauss ◽  
...  

2013 ◽  
Author(s):  
Joshua R. Codoni ◽  
Erin M. Reed ◽  
James McDaniel ◽  
Hicham Alkandry ◽  
Iain D. Boyd

AIAA Journal ◽  
10.2514/2.157 ◽  
1997 ◽  
Vol 35 (4) ◽  
pp. 678-686 ◽  
Author(s):  
G. Gauba ◽  
K. G. Klavuhn ◽  
J. C. McDaniel ◽  
K. G. Victor ◽  
R. H. Krauss ◽  
...  

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 1769-1772
Author(s):  
P. C. Palma ◽  
S. G. Mallinson ◽  
S. B. O'Byrne ◽  
P. M. Danehy ◽  
R. Hiller

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