Characteristic time ignition model extended to an annular gas turbine combustor
The extension of the ignition model to an annular combustor was successful and a single ignition limit curve for three engines was developed. The correlation also includes 4 geometries and 2 plug locations for the AGT-1500, 30 fuels covering a wide range of volatilities from gasoline to No. 6 fuel oil and viscosities of 0.3-75 x 10/sup -6/ m/sup 2//s, inlet air temperatures of 240-330 K, and pressures of 30-140 kPa. One significant difference that developed in examining the F101 data is that the primary zone equivalence ratio was the proper equivalence ration for the F101 as opposed to the assumption of a constant equivalence ratio at the spark gap for the AGT-1500 and T-63. This may indicate better mixing of the fuel spray with the primary zone air in the F101 due to the injection of the fuel into the primary and secondary swirler air. The critical features of applying the ignition model to gas turbine combustors are the drop size estimates via empirical equations and the equivalence ratio evaluations based on the fuel spray and spark plug locations.
- Research Organization:
- Perdue University, West Lafayette, Indiana
- OSTI ID:
- 6103137
- Journal Information:
- J. Energy; (United States), Vol. 6:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COMBUSTORS
IGNITION
LIQUID FUELS
AIR FLOW
ANNULAR SPACE
CONFIGURATION
FUEL OILS
GAS TURBINES
GASOLINE
MATHEMATICAL MODELS
MIXING
PARAMETRIC ANALYSIS
PRESSURE MEASUREMENT
SPARK GAPS
TEMPERATURE MEASUREMENT
FLUID FLOW
FUELS
GAS FLOW
MACHINERY
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SPACE
TURBINES
TURBOMACHINERY
421000* - Engineering- Combustion Systems