Experimental Investigation on the Combustion of JP-8 Jet Fuel Carolyn Fortson Ken Brezinsky, Advising Professor Brad Culbertson, Project Advisor 1

Project Create computer model for chemical reactions in jet engine after burn US Air Force concerned about jet fuel pollutants Combustion chemistry of JP-8 fuel unknown Motivation 2

Validation Build System Produce Flame Identify Combustion Products Sample Flame Determine Concentrations 3

Counter Flow Flame 4

System 5

Burner Schematic 6

Validation Build System Produce Flame Identify Combustion Products Sample Flame Determine Concentrations 7

Stabilizing Flame Flow Rates: Oxidizer Gas Carrier Gas Fuel 8

Flow Rates: Ideal: 6% Oxygen Actual: 29% Oxygen Fuel Stream Oxidizer Stream Fuel 15 mL/Hr X Oxygen 0.5 L/Min Nitrogen 1.2 L/Min 9

Validation Build System Produce Flame Identify Combustion Products Sample Flame Determine Concentrations 10

Determining Concentrations mV min 11

Validation Build System Produce Flame Identify Combustion Products Sample Flame Determine Concentrations 12

Sampling Determining Velocity and Stagnation Plane Probes LDV Pitot Tube Probes Size Shape Sampling Platform Horizontal Movement Vertical Movement 13

Sampling 14

Test Probes A B C D 310 μm 110 μm 80 μm 6.35 mm 15

Sampling Probe A (310 μm) Probe B (110 μm) Probe C (80 μm) Probe D (6.35 mm) 16

Sampling Probe A (310 μm) Probe B (110 μm) Probe C (80 μm) Probe D (6.35 mm) 17

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Vertical Position mV min Height (mm) from Top of Flame: 1.19 2.38 3.57 4.76 5.95 7.14 mV min 20

Validation Build System Produce Flame Identify Combustion Products Sample Flame Determine Concentrations 21

Concentration Xylene Benzene Toluene Phenylacetylene 22

Concentration 23

Suggestions for Future Work Determine Velocity at Stagnation Plane Run Mass Spec with a more suitable column Project Completion Sample Different Fuels Validate CFD 24

Acknowledgements Professor Brezinsky Brad Culbertson Megan Chirby Financial support from the EEC-NSF Grant # 0755115 25