Keywords

Gas Turbine, LIF, LDA, CARS

Abstract

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.

Original Publication Citation

Hedman, P. O., T. H. Fletcher, D. V. Flores, S. G. Graham, J. K. Haslam, R. L. Murray, G. W. Timothy, “Observations of Flame Behavior in a Laboratory-Scale Pre-Mixed Natural Gas/Air Gas Turbine Combustor from PLIF Measurements of OH, LDA Velocity measurements, and CARS Temperature Measurements,” ASME Journal for Gas Turbines and Power, 127:4, 724-739 (2005).

Document Type

Peer-Reviewed Article

Publication Date

2005

Publisher

ASME

Language

English

College

Ira A. Fulton College of Engineering

Department

Chemical Engineering

University Standing at Time of Publication

Full Professor

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