Characterization of a nitrogen diluted hydrogen diffusion flame for model validation

Dilute hydrogen diffusion flames have been considered as a gas turbine combustion strategy that provides relatively low levels of NOx emissions for application in integrated gasification combined cycle power generation. These flames also represent a challenging environment for computational modeling efforts due to the complexity of molecular transport effects, turbulence-chemistry interaction, and near extinction flame conditions. In order to provide data for validation of computational modeling efforts, measurements of major species concentration and flame temperature were made in such a flame using spontaneous Raman scattering. Experimental results demonstrate the importance of differential species diffusion, which occurs due to the disparity between diffusion characteristics of hydrogen and nitrogen. Additionally, the flame temperatures observed were quite low relative to the equilibrium flame temperature, due to flame strain. This confirms the fact that suppression of the thermal mechanism of NOx formation plays a significant role in reducing NOx emissions from this type of flame.

This is an Accepted Manuscript of an article published by Taylor & Francis in Combustion Science and Technology on 2015-04-29, available online: https://www.tandfonline.com/10.1080/00102202.2015.1042102.

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Work Title Characterization of a nitrogen diluted hydrogen diffusion flame for model validation
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Open Access
Creators
  1. Joseph A. Ranalli
  2. Peter A. Strakey
Keyword
  1. Raman spectroscopy
  2. Hydrogen dilute diffusion
License CC BY-NC 4.0 (Attribution-NonCommercial)
Work Type Article
Publisher
  1. Combustion Science and Technology
Publication Date May 26, 2015
Publisher Identifier (DOI)
  1. https://doi.org/10.1080/00102202.2015.1042102
Deposited December 17, 2023

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Version 1
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  • Created
  • Added Ranalli_2015_CST_Raman_Accepted-1.pdf
  • Added Creator Joseph A. Ranalli
  • Added Creator Peter A. Strakey
  • Published
  • Updated Keyword, Publication Date Show Changes
    Keyword
    • Raman spectroscopy, Hydrogen dilute diffusion
    Publication Date
    • 2015-09-02
    • 2015-05-26
  • Updated