Application of Active Combustion Instability Control to a Heavy Duty Gas Turbine

authored by: J. R. Seume, N. Vortmeyer, W. Krause, J. Hermann, C.-C. Hantschk, P. Zangl, S. Gleis, D. Vortmeyer, A. Orthmann
Abstract: During the prototype shop tests, the Model V84.3A ring combustor gas turbine unexpectedly exhibited a noticeable “humming” caused by self-excited flame vibrations in the combustion chamber for certain operating conditions. The amplitudes of the pressure fluctuations in the combustor were unusually high when compared to the previous experience with silo combustor machines. As part of the optimization program, the humming was investigated and analyzed. To date, combustion instabilities in real, complex combustors cannot be predicted analytically during the design phase. Therefore, and as a preventive measure against future surprises by “humming”, a feedback system was developed which counteracts combustion instabilities by modulation of the fuel flow rate with rapid valves (active instability control, AIC). The AIC achieved a reduction of combustion-induced pressure amplitudes by 86 percent. The combustion instability in the Model V84.3A gas turbine was eliminated by changes of the combustor design. Therefore, the AIC is not required for the operation of customer gas turbines.
External Organisation(s): Siemens AG
Pad Software
Technical University of Munich (TUM)
Type: Article
Journal: Journal of Engineering for Gas Turbines and Power
Volume: 120
Pages: 721-726
No. of pages: 6
ISSN: 0742-4795
Publication date: 10.1998
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Nuclear Energy and Engineering, Fuel Technology, Aerospace Engineering, Energy Engineering and Power Technology, Mechanical Engineering
Electronic version(s): https://doi.org/10.1115/1.2818459 (Access: Closed)

BibTeX

@article{519c0253766e4973bbe4f4de9038a1f0,
title = "Application of Active Combustion Instability Control to a Heavy Duty Gas Turbine",
abstract = "During the prototype shop tests, the Model V84.3A ring combustor gas turbine unexpectedly exhibited a noticeable “humming” caused by self-excited flame vibrations in the combustion chamber for certain operating conditions. The amplitudes of the pressure fluctuations in the combustor were unusually high when compared to the previous experience with silo combustor machines. As part of the optimization program, the humming was investigated and analyzed. To date, combustion instabilities in real, complex combustors cannot be predicted analytically during the design phase. Therefore, and as a preventive measure against future surprises by “humming”, a feedback system was developed which counteracts combustion instabilities by modulation of the fuel flow rate with rapid valves (active instability control, AIC). The AIC achieved a reduction of combustion-induced pressure amplitudes by 86 percent. The combustion instability in the Model V84.3A gas turbine was eliminated by changes of the combustor design. Therefore, the AIC is not required for the operation of customer gas turbines.",
author = "Seume, {J. R.} and N. Vortmeyer and W. Krause and J. Hermann and C.-C. Hantschk and P. Zangl and S. Gleis and D. Vortmeyer and A. Orthmann",
year = "1998",
month = oct,
doi = "10.1115/1.2818459",
language = "English",
volume = "120",
pages = "721--726",
journal = "Journal of Engineering for Gas Turbines and Power",
issn = "0742-4795",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "4",
}