Design, fabrication, and testing of a non-premixed methane/oxygen diffusion flame burner

Lucas M. Eckenrode, Makayla L.L. Ianuzzi, Morgan Litzinger, Lucas Nunamaker, Jordan Crist, Jeffrey D. Moore, Grant A. Risha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The focus of this research was the design, fabrication, and testing of an experimental non-premixed flame burner to determine the effect of gaseous flow parameters and flow geometry on the stability of methane/oxygen combustion. The non-premixed burner consisted of a horizontally mounted, rectangular combustion chamber with a single coaxial injector, capable of introducing reactants at a specified impingement angle. Gaseous oxygen was the primary flow and gaseous methane was the secondary flow. The non-premixed burner was equipped with optical windows on both sides of the chamber parallel to the axis of the flame, which allowed for clear viewing of the product flame. Ignition of the reactants was achieved by a retractable spark plug. Stability maps of the resultant diffusion flame were created for two different exit flow areas based upon oxidizer-to-fuel mass ratio, equivalence ratio, and primary reactant Reynolds numbers. The results showed that decreasing the primary flow area resulted in a more stable flame over a broader range of Reynolds numbers. For both flow areas tested, increasing Reynolds number resulted in a transition from a stable, anchored flame to a detached, unstable flame. As equivalence ratio approached unity, the diffusion flame become more unstable as well.

Original languageEnglish (US)
Title of host publicationAIAA Propulsion and Energy Forum and Exposition, 2019
Publisher[publishername] American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105906
DOIs
StatePublished - Jan 1 2019
EventAIAA Propulsion and Energy Forum and Exposition, 2019 - Indianapolis, United States
Duration: Aug 19 2019Aug 22 2019

Publication series

NameAIAA Propulsion and Energy Forum and Exposition, 2019

Conference

ConferenceAIAA Propulsion and Energy Forum and Exposition, 2019
CountryUnited States
CityIndianapolis
Period8/19/198/22/19

Fingerprint

Fuel burners
Methane
Reynolds number
Fabrication
Oxygen
Testing
Spark plugs
Secondary flow
Combustion chambers
Ignition
Flow of fluids
Geometry

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Mechanical Engineering
  • Energy(all)
  • Aerospace Engineering

Cite this

Eckenrode, L. M., Ianuzzi, M. L. L., Litzinger, M., Nunamaker, L., Crist, J., Moore, J. D., & Risha, G. A. (2019). Design, fabrication, and testing of a non-premixed methane/oxygen diffusion flame burner. In AIAA Propulsion and Energy Forum and Exposition, 2019 (AIAA Propulsion and Energy Forum and Exposition, 2019). [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2019-4156
Eckenrode, Lucas M. ; Ianuzzi, Makayla L.L. ; Litzinger, Morgan ; Nunamaker, Lucas ; Crist, Jordan ; Moore, Jeffrey D. ; Risha, Grant A. / Design, fabrication, and testing of a non-premixed methane/oxygen diffusion flame burner. AIAA Propulsion and Energy Forum and Exposition, 2019. [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA, 2019. (AIAA Propulsion and Energy Forum and Exposition, 2019).
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Eckenrode, LM, Ianuzzi, MLL, Litzinger, M, Nunamaker, L, Crist, J, Moore, JD & Risha, GA 2019, Design, fabrication, and testing of a non-premixed methane/oxygen diffusion flame burner. in AIAA Propulsion and Energy Forum and Exposition, 2019. AIAA Propulsion and Energy Forum and Exposition, 2019, [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA Propulsion and Energy Forum and Exposition, 2019, Indianapolis, United States, 8/19/19. https://doi.org/10.2514/6.2019-4156

Design, fabrication, and testing of a non-premixed methane/oxygen diffusion flame burner. / Eckenrode, Lucas M.; Ianuzzi, Makayla L.L.; Litzinger, Morgan; Nunamaker, Lucas; Crist, Jordan; Moore, Jeffrey D.; Risha, Grant A.

AIAA Propulsion and Energy Forum and Exposition, 2019. [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA, 2019. (AIAA Propulsion and Energy Forum and Exposition, 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - The focus of this research was the design, fabrication, and testing of an experimental non-premixed flame burner to determine the effect of gaseous flow parameters and flow geometry on the stability of methane/oxygen combustion. The non-premixed burner consisted of a horizontally mounted, rectangular combustion chamber with a single coaxial injector, capable of introducing reactants at a specified impingement angle. Gaseous oxygen was the primary flow and gaseous methane was the secondary flow. The non-premixed burner was equipped with optical windows on both sides of the chamber parallel to the axis of the flame, which allowed for clear viewing of the product flame. Ignition of the reactants was achieved by a retractable spark plug. Stability maps of the resultant diffusion flame were created for two different exit flow areas based upon oxidizer-to-fuel mass ratio, equivalence ratio, and primary reactant Reynolds numbers. The results showed that decreasing the primary flow area resulted in a more stable flame over a broader range of Reynolds numbers. For both flow areas tested, increasing Reynolds number resulted in a transition from a stable, anchored flame to a detached, unstable flame. As equivalence ratio approached unity, the diffusion flame become more unstable as well.

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Eckenrode LM, Ianuzzi MLL, Litzinger M, Nunamaker L, Crist J, Moore JD et al. Design, fabrication, and testing of a non-premixed methane/oxygen diffusion flame burner. In AIAA Propulsion and Energy Forum and Exposition, 2019. [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA. 2019. (AIAA Propulsion and Energy Forum and Exposition, 2019). https://doi.org/10.2514/6.2019-4156