Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction...
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Transcript of Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction...
![Page 1: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/1.jpg)
1Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Flammability Reduction Methods: ComplianceOptions
Federal AviationAdministration
AAR-440 Fire Safety BranchWm. J. Hughes Technical CenterFederal Aviation Administration
![Page 2: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/2.jpg)
2Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Reticulated Foam
Advantages:
• 100% protection• Passive System• No model – no need for flight testing
Disadvantages:
• Weight• Fuel displacement• Interference with maintenance• Haz. Mat. When out of tank
Certification issues:
• Foam pedigree• Voiding• Durability• Interference in tank
![Page 3: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/3.jpg)
3Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Inerting with Stored CO2
Advantages:
• ?
Disadvantages:
• Must be stored on aircraft
Certification issues:
• Needed O2 concentration not known• Fuel solubility• Effect on pumps
![Page 4: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/4.jpg)
4Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Inerting with Exhaust Gas
Advantages:
• Already produced on aircraft
Disadvantages:
• How to obtain
Certification issues:
• Needed O2 concentration unknown• Contaminants unknown
![Page 5: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/5.jpg)
5Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Catalytic InertingAdvantages:
• Possible weight• Less power from aircraft• environmental
Disadvantages:
• ?
Certification issues:
• Needed O2 concentration not known• Fuel solubility• Effect on pumps
![Page 6: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/6.jpg)
6Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Rapid Ventilation
Advantages:
• Cost• Weight
Disadvantages:
• Loss of fuel• Environmental• Need for in-tank monitoring
Certification issues:
• Tank flammability verification
![Page 7: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/7.jpg)
7Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Misting Fuel Vapor
Advantages:
• Possible weight savings• Possible lower cost
Disadvantages:
• Loss of fuel• Environmental• Safety issues
Certification issues:
• Post crash implications• Failure modes• In-tank hydrocarbon measurements
![Page 8: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/8.jpg)
8Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Nitrogen Inerting
• Cryogenic Nitrogen
• High Pressure Stored Nitrogen
• Ground Based Nitrogen
• Two Flow Nitrogen
• Full Time On Demand Nitrogen
![Page 9: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/9.jpg)
9Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Cryogenic Nitrogen
Stored: Too heavy
Manufactured: Developing technology
![Page 10: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/10.jpg)
10Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
High Pressure Stored Nitrogen
Too Heavy
![Page 11: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/11.jpg)
11Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Ground Based Nitrogen
•Logistics•Manpower
![Page 12: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/12.jpg)
12Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Two Flow Nitrogen
• Present system of Choice
![Page 13: Federal Aviation Administration FAA Fire Safety Branch September 9-11 0 Flammability Reduction Methods: Compliance Options Federal Aviation Administration.](https://reader037.fdocuments.us/reader037/viewer/2022110321/56649f465503460f94c68cea/html5/thumbnails/13.jpg)
13Federal AviationAdministration
FAA Fire Safety BranchSeptember 9-11
Full Time On Demand Nitrogen
Advantages:
• Less power from aircraft
• Environmental
Disadvantages:
• Weight
• Vent valve