2.4.3: Low Emissions, Quiet, Flameless Combustor

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2.4.3 Low Emissions, Quiet, Flameless Combustor
2.4 High Performance Components
Primary Investigators Zinn, Menon and Seitzman
(Ga. Tech)

• Projects Science Technology Objective(s)
• Objective 1 Lower NOx, CO and smoke emissions
• Objective 2 Reduce combustor noise
• Objective 3 Increase combustor stability

• Explanatory Figure, Picture, or Graphic

• Potential/Current Collaborations
• Government NASA GRC and Air Force laboratory
• URETI URETIs on Hypersonics
• Industry All engine companies
• Synergism with existing programs NASA UEET, GE
  USA Center, GE Power Systems

A Burner Stabilizing Flame and Flameless Oxidation

• Accomplishments
• Accomplishment 1 Determination of the
  feasibility of using flameless combustion in
  aircrafts engines
• Accomplishment 2 Assessment of the benefits of
  flameless combustion in aircraft applications
• Accomplishment 3 Obtain data for developing
  practical aircraft engines flameless combustors

• Proposed Research Approach
• Step 1 Adapt flameless combustion concept to
  aircraft applications
• Step 2 Investigate analytically and
  experimentally the feasibility of proposed
  flameless combustor concepts
• Step 3 Demonstrate benefits of flameless
  combustion

• Milestones
• 1 Develop aircraft, flameless, combustor
  concepts
• 2 Demonstrate feasibility of proposed aircraft
  engines flameless combustor concepts
• 3 Quantify benefits of flameless combustion in
  aircraft applications

• NASA Relevance/Impact
• Relevance/impact 1 Reduce NOx, CO and smoke
  emissions
• Relevance/impact 2 Improve engines
  reliability/safety
• Relevance/impact 3 Reduce engines noise

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2.4.3 Proposed Approach

• Investigate/Modify developed industrial flameless
  combustor concepts for aircraft engine
  applications
• Use Large Eddy Simulations (LES) to investigate
  the feasibility of the proposed aircraft engines
  flameless combustor concepts
• Use the prediction of the LES simulations to
  develop a proof of concept flameless combustor
  for aircraft engine applications
• Use LES simulations and measured data to
• Quantify the benefits of flameless combustion in
  aircraft applications, and
• Improve understanding of the fundamental
  processes that control flameless combustion
• Share developed understanding of flameless
  combustion with NASA, Air Force and Industry in
  an effort to develop practical flameless
  combustors