The LM2500 and LM6000 dry-low-emissions aeroderivative gas turbine engines have been in commercial service for 15 years and have accumulated nearly 10 × 106 hours of commercial operation. The majority of these engines utilize pipeline quality natural gas predominantly comprised of methane. There is; however, increasing interest in nonstandard fuels that contain varying levels of higher hydrocarbon species and/or inert gases. This paper reports on the demonstrated operability of LM2500 and LM6000 DLE engines with nonstandard fuels. In particular, rig tests at engine conditions were performed to demonstrate the robustness of the dual-annular counter-rotating swirlers premixer design, relative to flameholding with fuels containing high ethane, propane, and N2 concentrations. These experiments, which test the ability of the hardware to shed a flame introduced into the premixing region, have been used to expand the quoting limits for LM2500 and LM6000 gas turbine engines to elevated C2+ levels. In addition, chemical kinetics analysis was performed to understand the effect of temperature, pressure, and fuel compositions on flameholding. Test data for different fuels and operating conditions were successfully correlated with Damkohler number.
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Fuel Flexibility in LM2500 and LM6000 Dry Low Emission Engines
John Blouch,
John Blouch
GE Global Research Center
, One Research Circle, Niskayuna, NY 12309 e-mail:
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Richard Hook
Richard Hook
Search for other works by this author on:
John Blouch
GE Global Research Center
, One Research Circle, Niskayuna, NY 12309 e-mail:
Richard Hook
J. Eng. Gas Turbines Power. May 2012, 134(5): 051503 (6 pages)
Published Online: February 29, 2012
Article history
Received:
April 25, 2011
Revised:
May 10, 2011
Online:
February 29, 2012
Published:
February 29, 2012
Citation
Blouch, J., Li, H., Mueller, M., and Hook, R. (February 29, 2012). "Fuel Flexibility in LM2500 and LM6000 Dry Low Emission Engines." ASME. J. Eng. Gas Turbines Power. May 2012; 134(5): 051503. https://doi.org/10.1115/1.4004213
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