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Experimental Investigations of an Industrial Lean Premixed Gas Turbine Combustor With High Swirling Flow

Sigfrid, Ivan LU ; Whiddon, Ronald LU ; Abou-Taouk, Abdallah; Collin, Robert LU and Klingmann, Jens LU (2012) ASME 2012 Gas Turbine India Conference In Proceedings of ASME, GTIndia2012-9681 p.559-569
Abstract
In the interest of understanding the prospects and restrictions of fuel flexibility in a prototype industrial gas turbine combustor, an experimental study is performed. Methane is used to characterize standard gas turbine operation; in addition a non-standard fuel is explored, generic syngas (67.5 % hydrogen, 22.5 % carbon monoxide and 10 % methane). Both these gases are also investigated after dilution with Nitrogen to a Wobbe index of 15 MJ/m3. All measurements are conducted at a preheat temperature of 650 K to mimic gas turbine conditions. The pressure is atmospheric. The burner examined is a downscaled industrial 4th generation DLE (dry low emissions) burner. This swirl-stabilized burner features three concentric sectors: the RPL... (More)
In the interest of understanding the prospects and restrictions of fuel flexibility in a prototype industrial gas turbine combustor, an experimental study is performed. Methane is used to characterize standard gas turbine operation; in addition a non-standard fuel is explored, generic syngas (67.5 % hydrogen, 22.5 % carbon monoxide and 10 % methane). Both these gases are also investigated after dilution with Nitrogen to a Wobbe index of 15 MJ/m3. All measurements are conducted at a preheat temperature of 650 K to mimic gas turbine conditions. The pressure is atmospheric. The burner examined is a downscaled industrial 4th generation DLE (dry low emissions) burner. This swirl-stabilized burner features three concentric sectors: the RPL (rich-pilot-lean), the Pilot and the Main. The burner is designed to be coupled with a quartz combustion liner allowing a variety of laser and optical diagnostics, including PIV (Particle Image Velocimetry) and OH-pLIF (planar Laser Induced Florescence). The mentioned techniques are used herein for identification of combustion and flow phenomena. For this study the measurement region is located at the burner recirculation zone. CFD (RANS) calculations are compared with the OH-pLIF images to identify the zones of active combustion. CFD is also used to see the effect of recirculation zone position when moving towards the lean blow out limit. Additionally, integral scales are calculated for each of the combustion cases and from these, the Kolmogorov scales are estimated. The flow field, imaged by PIV, shows that the recirculation zone location along the major flow axis is strongly dependent on the presence of combustion. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Combustion, syngas, hydrogen, CFD, Fluid mechanics
in
Proceedings of ASME, GTIndia2012-9681
editor
Kumar, Sudarshan and
pages
11 pages
publisher
American Society Of Mechanical Engineers (ASME)
conference name
ASME 2012 Gas Turbine India Conference
external identifiers
  • scopus:84888263445
ISBN
978-0-7918-4516-5
DOI
10.1115/GTINDIA2012-9681
language
English
LU publication?
yes
id
c93ffe6d-cc02-4d93-99c9-71767790a820 (old id 3972273)
date added to LUP
2013-08-16 13:18:51
date last changed
2017-03-19 04:23:33
@inproceedings{c93ffe6d-cc02-4d93-99c9-71767790a820,
  abstract     = {In the interest of understanding the prospects and restrictions of fuel flexibility in a prototype industrial gas turbine combustor, an experimental study is performed. Methane is used to characterize standard gas turbine operation; in addition a non-standard fuel is explored, generic syngas (67.5 % hydrogen, 22.5 % carbon monoxide and 10 % methane). Both these gases are also investigated after dilution with Nitrogen to a Wobbe index of 15 MJ/m3. All measurements are conducted at a preheat temperature of 650 K to mimic gas turbine conditions. The pressure is atmospheric. The burner examined is a downscaled industrial 4th generation DLE (dry low emissions) burner. This swirl-stabilized burner features three concentric sectors: the RPL (rich-pilot-lean), the Pilot and the Main. The burner is designed to be coupled with a quartz combustion liner allowing a variety of laser and optical diagnostics, including PIV (Particle Image Velocimetry) and OH-pLIF (planar Laser Induced Florescence). The mentioned techniques are used herein for identification of combustion and flow phenomena. For this study the measurement region is located at the burner recirculation zone. CFD (RANS) calculations are compared with the OH-pLIF images to identify the zones of active combustion. CFD is also used to see the effect of recirculation zone position when moving towards the lean blow out limit. Additionally, integral scales are calculated for each of the combustion cases and from these, the Kolmogorov scales are estimated. The flow field, imaged by PIV, shows that the recirculation zone location along the major flow axis is strongly dependent on the presence of combustion.},
  author       = {Sigfrid, Ivan and Whiddon, Ronald and Abou-Taouk, Abdallah and Collin, Robert and Klingmann, Jens},
  booktitle    = {Proceedings of ASME, GTIndia2012-9681},
  editor       = {Kumar, Sudarshan},
  isbn         = {978-0-7918-4516-5},
  keyword      = {Combustion,syngas,hydrogen,CFD,Fluid mechanics},
  language     = {eng},
  pages        = {559--569},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Experimental Investigations of an Industrial Lean Premixed Gas Turbine Combustor With High Swirling Flow},
  url          = {http://dx.doi.org/10.1115/GTINDIA2012-9681},
  year         = {2012},
}