PROPOSED BURNTHROUGH TEST METHOD CALIBRATION GUIDELINES

1. PROPOSED BURNTHROUGH TEST METHOD CALIBRATION GUIDELINES

2. Objective of Testing: • Establish Similar Calibration Procedure • Produce Similar Exposure From Burner • Achieve Similar Test Results

3. Factors That Can Influence Calibration • Air Intake Velocity • Air Intake Temperature • Fuel Flowrate • Fuel Temperature • Instrumentation (type/size of thermocouple, calorimeter type) • Other Adjustments (position of igniters, static disc, tabs) • Environmental Conditions (relative humidity, barometric pressure) • Fuel Type (Jet A, Diesel, Fuel Oil)

4. Individual Calibration Rigs

6. Protective Heat Shield for Burner Components

7. Protective Heat Shield for Burner Components

8. Conditioned Intake Air

9. Conditioned Intake Air

10. Intake Airbox

11. Intake Airbox Mounted to Burner

12. Fuel Temperature

13. Intake Airbox Holding Air Velocity Meter

14. Measurement of Intake Air and Fuel Temperature

15. Temperature Rake Using 1/8” Closed Bead Thermocouples

16. Factory Mounted Static Disc

17. Static Disc Mounted to Igniter Assembly

18. Temperature Profile Bias

21. Use of Deflection Tabs at Draft Tube End

22. Effect of Tab Positioning on Temperature Air Velocity = 2000 ft/min Igniters @ 6:00 Average Temp = 1912oF Result: Low on ends, too hot in middle Air Velocity = 2000 ft/min Igniters @ 6:00 Average Temp = 1927oF Result: Too hot in middle Air Velocity = 2000 ft/min Igniters @ 6:00 Average Temp = 1890oF Result: Low on ends, too hot in middle

23. Effect of Tab Positioning on Temperature Air Velocity = 2000 ft/min Igniters @ 6:00 Average Temp = 1957oF Result: Low on ends, too hot in middle Air Velocity = 1900 ft/min Igniters @ 6:00 Average Temp = 1951oF Result: Low on ends, too hot in middle Air Velocity = 2000 ft/min Igniters @ 9:00 Average Temp = 1860oF Result: All temperatures in range

24. Location of Flame Enhancement Tab

25. Day 1 Temperature Calibration @ Various Air Velocity Settings Air Velocity = 1900 ft/min Igniters @ 9:00 Average Temp = 1846oF Result: All temperatures in range Air Velocity = 2000 ft/min Igniters @ 9:00 Average Temp = 1860oF Result: All temperatures in range Air Velocity = 2100 ft/min Igniters @ 9:00 Average Temp = 1882oF Result: All temperatures in range Air Velocity = 2200 ft/min Igniters @ 9:00 Average Temp = 1896oF Result: All temperatures in range

26. Day 2 Temperature Calibration @ Various Air Velocity Settings Air Velocity = 2000 ft/min Igniters @ 9:00 Average Temp = 1826oF Result: All temperatures in range Air Velocity = 2100 ft/min Igniters @ 9:00 Average Temp = 1832oF Result: All temperatures in range Air Velocity = 2200 ft/min Igniters @ 9:00 Average Temp = 1864oF Result: All temperatures in range

27. Day 3 Temperature Calibration @ Various Air Velocity Settings Air Velocity = 1900 ft/min Igniters @ 9:00 Average Temp = 1863oF Result: All temperatures in range Air Velocity = 2000 ft/min Igniters @ 9:00 Average Temp = 1887oF Result: All temperatures in range Air Velocity = 2100 ft/min Igniters @ 9:00 Average Temp = 1913oF Result: Middle temperatures slightly high

29. Day 1 Heat Flux Calibration @ Various Air Velocity Settings Date: 11/17/99

30. Day 2 Heat Flux Calibration @ Various Air Velocity Settings Date: 11/18/99

31. Day 3 Heat Flux Calibration @ Various Air Velocity Settings Date: 11/19/99

33. Date: 11/23/99

34. Date: 11/24/99

35. Latest Calibration Procedure Adjust Fuel Flowrate to 6.0 gal/hr Adjust Burner Intake Air Velocity to 2200 ft/min Temperature: (1850oF +/- 100oF) • After 2-minute warm-up, swing burner into position, • allow 1 minute stabilization, • take reading for 30 seconds (once per second) and average, • swing burner away from flame Heat Flux: (15.2 Btu/ft2 sec +/- 0.8 Btu/ft2 sec) • After 2-minute warm-up, swing burner into position, • allow 1 minute stabilization, • take reading for 30 seconds (once per second) and average, • swing burner away from flame

36. Calibration Tests Using Aluminum Skin

37. Round Robin Burnthrough TestingMaterial Selection • Quick-Failing Material (< 1 minute) • Long Duration Passing Material (> 5 minutes) • 1-2 Minute Material Combination • 2-3 Minute Material Combination

38. Round Robin Burnthrough Testing Purpose To identify problems encountered during calibration of test equipment to ensure similarity between labs To prove similarity of test equipment through testing of identical samples Cataloguing Method for Identifying Materials Ins Thickness (in) - Ins Density (lb/ft3) - Ins Type - Add Barrier - Film - Weight Class (Thickness) FG=Fiberglass OPF=Oxidized Polyacrylonitrile Fiber PAN=Polyacrylonitrile Fiber RPI=Rigid Polyimide Foam NEX=Nextel Ceramic Paper FOP=Felted OPF NQZ=Needled Quartz CFS=Carbon Fiber Skrim 60=0.60 42=0.42 34=0.34 PET1=class 1 polyethylene terepthalate PVF2=class 2 polyvinyl fluoride PI=polyimide FC=fluoropolymer composite Example: 2-42-FG-NEX-PET-1

39. Burnthrough Round Robin Test Results (Imaginary)

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