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Investigation of ozone stimulated combustion in the SGT-800 burner at atmospheric conditions

Lantz, Andreas LU ; Larfeldt, Jenny LU ; Ehn, Andreas LU ; Zhu, Jiajian LU ; Subash, Arman Ahamed LU ; Nilsson, Elna J K LU ; Li, Zhongshan LU and Aldén, Marcus LU (2016) ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, GT 2016 In Combustion, Fuels and Emissions 4A-2016.
Abstract

The effect of ozone (O3) in a turbulent, swirl-stabilized natural gas/air flame was experimentally investigated at atmospheric pressure conditions using planar laser-induced fluorescence imaging of formaldehyde (CH2O PLIF) and dynamic pressure monitoring. The experiment was performed using a dry low emission (DLE) gas turbine burner used in both SGT-700 and SGT-800 industrial gas turbines from Siemens. The burner was mounted in an atmospheric combustion test rig at Siemens with optical access in the flame region. CH2O PLIF imaging was carried out for four different seeding gas compositions and seeding injection channel configurations. Two seeding injection-channels were located around the burner tip... (More)

The effect of ozone (O3) in a turbulent, swirl-stabilized natural gas/air flame was experimentally investigated at atmospheric pressure conditions using planar laser-induced fluorescence imaging of formaldehyde (CH2O PLIF) and dynamic pressure monitoring. The experiment was performed using a dry low emission (DLE) gas turbine burner used in both SGT-700 and SGT-800 industrial gas turbines from Siemens. The burner was mounted in an atmospheric combustion test rig at Siemens with optical access in the flame region. CH2O PLIF imaging was carried out for four different seeding gas compositions and seeding injection channel configurations. Two seeding injection-channels were located around the burner tip while the other two were located along the center axis of the burner at different distances upstream the burner outlet. Four different seeding gas compositions were used: nitrogen (N2), oxygen (O2) and two ozone/oxygen (O3/O2) mixtures with different O3 concentration. The results show that the O3 clearly affects the combustion chemistry. The natural gas/air mixture is preheated before combustion which is shown to kick-start the cold combustion chemistry where O3 is highly involved. The CH2O PLIF signal increases with O3 seeded into the flame which indicates that the pre-combustion activity increases and that the cold chemistry starts to develop further upstream. The small increase of the pressure drop over the burner shows that the flame moves upstream when O3 is seeded into the flame, which confirms the increase in pre-combustion activity.

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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Combustion, Fuels and Emissions
volume
4A-2016
publisher
American Society Of Mechanical Engineers (ASME)
conference name
ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, GT 2016
external identifiers
  • scopus:84991694159
ISBN
9780791849750
DOI
10.1115/GT2016-57111
language
English
LU publication?
yes
id
aec42fe6-04b6-4a6b-a9e1-eda78d98c9c0
date added to LUP
2017-02-24 12:27:39
date last changed
2017-02-28 14:21:45
@inproceedings{aec42fe6-04b6-4a6b-a9e1-eda78d98c9c0,
  abstract     = {<p>The effect of ozone (O<sub>3</sub>) in a turbulent, swirl-stabilized natural gas/air flame was experimentally investigated at atmospheric pressure conditions using planar laser-induced fluorescence imaging of formaldehyde (CH<sub>2</sub>O PLIF) and dynamic pressure monitoring. The experiment was performed using a dry low emission (DLE) gas turbine burner used in both SGT-700 and SGT-800 industrial gas turbines from Siemens. The burner was mounted in an atmospheric combustion test rig at Siemens with optical access in the flame region. CH<sub>2</sub>O PLIF imaging was carried out for four different seeding gas compositions and seeding injection channel configurations. Two seeding injection-channels were located around the burner tip while the other two were located along the center axis of the burner at different distances upstream the burner outlet. Four different seeding gas compositions were used: nitrogen (N<sub>2</sub>), oxygen (O<sub>2</sub>) and two ozone/oxygen (O<sub>3</sub>/O<sub>2</sub>) mixtures with different O<sub>3</sub> concentration. The results show that the O<sub>3</sub> clearly affects the combustion chemistry. The natural gas/air mixture is preheated before combustion which is shown to kick-start the cold combustion chemistry where O<sub>3</sub> is highly involved. The CH<sub>2</sub>O PLIF signal increases with O<sub>3</sub> seeded into the flame which indicates that the pre-combustion activity increases and that the cold chemistry starts to develop further upstream. The small increase of the pressure drop over the burner shows that the flame moves upstream when O<sub>3</sub> is seeded into the flame, which confirms the increase in pre-combustion activity.</p>},
  author       = {Lantz, Andreas and Larfeldt, Jenny and Ehn, Andreas and Zhu, Jiajian and Subash, Arman Ahamed and Nilsson, Elna J K and Li, Zhongshan and Aldén, Marcus},
  booktitle    = {Combustion, Fuels and Emissions},
  isbn         = {9780791849750},
  language     = {eng},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Investigation of ozone stimulated combustion in the SGT-800 burner at atmospheric conditions},
  url          = {http://dx.doi.org/10.1115/GT2016-57111},
  volume       = {4A-2016},
  year         = {2016},
}