NDLI: The Measurement and Prediction of Gaseous Hydrocarbon Fuel Auto-Ignition Delay Time at Realistic Gas Turbine Operating Conditions

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Sims, G. -J M. Clague, A. R. Copplestone, R. W. Menzies, K. R. Macquisten, M. A.
Copyright Year	2005
Abstract	Auto-ignition delay time measurements have been attempted for a variety of gaseous fuels on a flow rig at gas turbine relevant operating conditions. The residence time of the flow rig test section was approximately 175 ms. A chemical kinetic model has been used in Senkin, one of the applications within the Chemkin package, to predict the auto-ignition delay time measured in the experiment. The model assumes that chemistry is the limiting factor in the prediction and makes no account of the fluid dynamic properties of the experiment. Auto-ignition delay time events were successfully recorded for ethylene at approximately 16 bar, 850K and at equivalence ratios between 2.6 and 3.3. Methane, natural gas and ethylene (0.5 < φ < 2.5) failed to auto-ignite within the test section. Model predictions were found to agree with the ethylene measurements, although improved qualification of the experimental boundary conditions is required in order to better understand the dependence of auto-ignition delay on the physical characteristics of the flow rig. The chemical kinetic model used in this study was compared with existing ‘low temperature’ measurements and correlations for methane and natural gas and was found to be in good agreement.
Sponsorship	International Gas Turbine Institute
Starting Page	527
Ending Page	535
Page Count	9
File Format	PDF
ISBN	079184725X
DOI	10.1115/GT2005-68736
e-ISBN	0791837548
Volume Number	Volume 2: Turbo Expo 2005
Conference Proceedings	ASME Turbo Expo 2005: Power for Land, Sea, and Air
Language	English
Publisher Date	2005-06-06
Publisher Place	Reno, Nevada, USA
Access Restriction	Subscribed
Subject Keyword	Premix Methane Flow rig Low nox Gas turbine Auto-ignition delay time Natural gas Ethylene (ethene) Gas turbines Ignition Delays Fuels Flow (dynamics)
Content Type	Text
Resource Type	Article

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