Fuel/Air Mixing and Flame Structure Measurements for Advance Low Emission Gas Turbine Combustors

Abstract

A gas turbine combustion facility with optical access was developed which allows the use of laser diagnostic techniques to measure temperature and species concentrations within the combustion zone. The mixing effectiveness of a dual annular counter-rotating swirler premixer was examined using planar laser induced fluorescence (PLIF) of acetone seeded gaseous fuel to provide quantitative maps of the spatial and temporal fuel/air distributions emanating from the premixer. Time averaged results showed maximum spatial variations on the order of 50% of the known overall equivalence ratio. Temporal unmixedness resulted in peak equivalence ratios 2.4 times greater than the overall stoichiometry.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1998
Accession Number
ADA353371

Entities

People

  • James E. Peters
  • Robert E. Coverdill
  • Robert E. Foglesong
  • Robert P. Lucht
  • Timothy R. Frazier

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acquisition
  • Barometric Pressure
  • Brushless Dc Motors
  • Classification
  • Combustion
  • Combustors
  • Dye Lasers
  • Fluorescence
  • Gas Turbines
  • Gaseous Fuels
  • Gases
  • High Pressure
  • Ignition
  • Laser Induced Fluorescence
  • Lasers
  • Liquid Dye Lasers
  • Measurement

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.

Technology Areas

  • Directed Energy