A chemical kinetics mechanism designed for the oxidation of methane-hydrocarbon blends at elevated pressures was used to study the effect of higher-order hydrocarbons on ignition delay time and flame speed at gas turbine conditions. The mechanism was developed from recent data and modeling conducted by the authors, including pressures above 30 atm, temperatures as low as 700 K, and alkane additives from C2H6 through C5H12. Calculations focused on three target natural gas mixtures containing CH4 mole fractions from 62.5 to 98%. The results show the effects that pressure, temperature, and hydrocarbon content have on the combustion chemistry of the fuel-air mixtures. For example, autoignition times exhibit nonlinear trends with increasing pressure and decreasing temperature. Experiments in the authors’ laboratories are ongoing, and an overview of the related facilities is provided.
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ASME Turbo Expo 2007: Power for Land, Sea, and Air
May 14–17, 2007
Montreal, Canada
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-4791-8
PROCEEDINGS PAPER
Effect of Higher-Order Hydrocarbons on Methane-Based Fuel Chemistry at Gas Turbine Pressures
Gilles Bourque,
Gilles Bourque
Rolls-Royce Canada, Montreal, QC, Canada
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Darren Healy,
Darren Healy
National University of Ireland, Galway, Ireland
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Henry Curran,
Henry Curran
National University of Ireland, Galway, Ireland
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John Simmie,
John Simmie
National University of Ireland, Galway, Ireland
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Jaap de Vries,
Jaap de Vries
University of Central Florida, Orlando, FL
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Viktorio Antonovski,
Viktorio Antonovski
University of Central Florida, Orlando, FL
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Benjamin Corbin,
Benjamin Corbin
University of Central Florida, Orlando, FL
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Christopher Zinner,
Christopher Zinner
University of Central Florida, Orlando, FL
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Eric Petersen
Eric Petersen
University of Central Florida, Orlando, FL
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Gilles Bourque
Rolls-Royce Canada, Montreal, QC, Canada
Darren Healy
National University of Ireland, Galway, Ireland
Henry Curran
National University of Ireland, Galway, Ireland
John Simmie
National University of Ireland, Galway, Ireland
Jaap de Vries
University of Central Florida, Orlando, FL
Viktorio Antonovski
University of Central Florida, Orlando, FL
Benjamin Corbin
University of Central Florida, Orlando, FL
Christopher Zinner
University of Central Florida, Orlando, FL
Eric Petersen
University of Central Florida, Orlando, FL
Paper No:
GT2007-28039, pp. 781-788; 8 pages
Published Online:
March 10, 2009
Citation
Bourque, G, Healy, D, Curran, H, Simmie, J, de Vries, J, Antonovski, V, Corbin, B, Zinner, C, & Petersen, E. "Effect of Higher-Order Hydrocarbons on Methane-Based Fuel Chemistry at Gas Turbine Pressures." Proceedings of the ASME Turbo Expo 2007: Power for Land, Sea, and Air. Volume 2: Turbo Expo 2007. Montreal, Canada. May 14–17, 2007. pp. 781-788. ASME. https://doi.org/10.1115/GT2007-28039
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