Characteristic time ignition model extended to an annular gas turbine combustor

Journal Article · Mon Nov 01 04:00:00 EST 1982 · J. Energy; (United States)

DOI:https://doi.org/10.2514/3.48061· OSTI ID:6103137

Peters, J E; Mellor, A M

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), Journal Name: J. Energy; (United States) Vol. 6:6; ISSN JENED
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR FLOW
ANNULAR SPACE
COMBUSTORS
CONFIGURATION
FLUID FLOW
FUEL OILS
FUELS
GAS FLOW
GAS TURBINES
GASOLINE
IGNITION
LIQUID FUELS
MACHINERY
MATHEMATICAL MODELS
MIXING
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAMETRIC ANALYSIS
PETROLEUM PRODUCTS
PRESSURE MEASUREMENT
SPACE
SPARK GAPS
TEMPERATURE MEASUREMENT
TURBINES
TURBOMACHINERY