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Title: OH-PLIF Measurements of High-Pressure, Hydrogen Augmented Premixed Flames in the SimVal Combustor

Abstract

Planar Laser Induced Fluorescence (PLIF) measurements of the hydroxyl radical in lean, premixed natural gas flames augmented with hydrogen are presented. The experiments were conducted in the SimVal combustor at the National Energy Technology Laboratory (NETL) at operating pressures from 1 to 8 atmospheres. The data, which was collected in a combustor with well controlled boundary conditions, is intended to be used for validating Computational Fluid Dynamics (CFD) models under conditions directly relevant to land-based gas turbine engines. The images, which show significant effects of hydrogen on local flame quenching are discussed in terms of a turbulent premixed combustion regime and non-dimensional parameters such as Karlovitz number. Pressure was found to thin the OH region, but only had a secondary effect on overall flame shape compared to the effects of hydrogen addition which was found to decrease local quenching and shorten the turbulent flame brush. A method to process the individual images based on local gradients of fluorescence intensity is proposed and results are presented. Finally, the results of several Large Eddy Simulations (LES) are presented and compared to the experimental data in an effort to understand the issues related to model validation, especially for simulations that do not includemore » OH as an intermediate species.« less

Authors:
; ;  [1];  [1]
  1. Sandia
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV; Sandia National Laboratories (SNL-CA), Livermore, CA
Sponsoring Org.:
USDOE - Office of Fossil Energy (FE)
OSTI Identifier:
912835
Report Number(s):
DOE/NETL-IR-2007-065
TRN: US200802%%403
DOE Contract Number:  
None cited
Resource Type:
Conference
Resource Relation:
Conference: 45th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 8-11, 2007
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 08 HYDROGEN; 33 ADVANCED PROPULSION SYSTEMS; 36 MATERIALS SCIENCE; BOUNDARY CONDITIONS; COMBUSTION; COMBUSTORS; COMPUTERIZED SIMULATION; FLAMES; FLUID MECHANICS; FLUORESCENCE; GAS TURBINE ENGINES; HYDROGEN; HYDROGEN ADDITIONS; HYDROXYL RADICALS; LASERS; NATURAL GAS; QUENCHING; VALIDATION

Citation Formats

Strakey, P A, Woodruff, S D, Williams, T C, and Schefer, R W. OH-PLIF Measurements of High-Pressure, Hydrogen Augmented Premixed Flames in the SimVal Combustor. United States: N. p., 2007. Web.
Strakey, P A, Woodruff, S D, Williams, T C, & Schefer, R W. OH-PLIF Measurements of High-Pressure, Hydrogen Augmented Premixed Flames in the SimVal Combustor. United States.
Strakey, P A, Woodruff, S D, Williams, T C, and Schefer, R W. Mon . "OH-PLIF Measurements of High-Pressure, Hydrogen Augmented Premixed Flames in the SimVal Combustor". United States.
@article{osti_912835,
title = {OH-PLIF Measurements of High-Pressure, Hydrogen Augmented Premixed Flames in the SimVal Combustor},
author = {Strakey, P A and Woodruff, S D and Williams, T C and Schefer, R W},
abstractNote = {Planar Laser Induced Fluorescence (PLIF) measurements of the hydroxyl radical in lean, premixed natural gas flames augmented with hydrogen are presented. The experiments were conducted in the SimVal combustor at the National Energy Technology Laboratory (NETL) at operating pressures from 1 to 8 atmospheres. The data, which was collected in a combustor with well controlled boundary conditions, is intended to be used for validating Computational Fluid Dynamics (CFD) models under conditions directly relevant to land-based gas turbine engines. The images, which show significant effects of hydrogen on local flame quenching are discussed in terms of a turbulent premixed combustion regime and non-dimensional parameters such as Karlovitz number. Pressure was found to thin the OH region, but only had a secondary effect on overall flame shape compared to the effects of hydrogen addition which was found to decrease local quenching and shorten the turbulent flame brush. A method to process the individual images based on local gradients of fluorescence intensity is proposed and results are presented. Finally, the results of several Large Eddy Simulations (LES) are presented and compared to the experimental data in an effort to understand the issues related to model validation, especially for simulations that do not include OH as an intermediate species.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {1}
}

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