CCS and Power Systems

Advanced Energy Systems - Hydrogen Turbines


Turbulent Flame Propagation Characteristics of High Hydrogen Content Fuels


Performer: Georgia Tech Research Corporation

Project No: FE0004555


Accomplishments


  • Constructed a remotely operable high pressure test facility that will house the Bunsen burner and LSB nozzles.
  • Installed a new fuel flow metering and control system, which allows for fuel compositions to be varied quickly during testing.
  • Obtained global turbulent consumption speed data at 5 and 10 atmospheres (atm) for mean flow velocities ranging from 20–50 meters per second (m/s) and H2/CO ratios of 30/70 to 90/10 by volume while investigating a wide range (5–30) of turbulence intensities.
  • Performed cold flow velocity field characterization of the
    Bunsen burner for pressures and mean flow velocities of 1-20 atm and 10-50 m/s, respectively, using laser Doppler velocimetry (LDV).
  • Performed extensive strain sensitivity calculations to inves-tigate various parametric dependencies of key stretched flame quantities such as the maximum stretched laminar flame speed and the Markstein length.
  • Acquired local displacement speed data at atmospheric conditions for mean flow velocities of 30 and 50 m/s and H2/CO ratios from 50/50 to 100/0 by volume over a wide range of turbulence intensities using the LSB.
  • Analyzed characteristics of the turbulent flame brush from flame images acquired in the Bunsen burner over a wide range of fuel compositions and pressures ranging from 1-10 atm. Investigated sensitivities of the flame brush thickness to turbulence intensity, pressure, and fuel composition.
  • Calculated curvature statistics of LSB H2/CO data from Mie scattering images obtained from high speed particle image velocimetry (PIV) experiments. Curvature measurements were also conditioned on the leading points of the turbulent flame front in order to better understand leading point characteristics with changing fuel composition and turbulence intensity.

Project Details