Ground Based Inerting Overview An Overview of the





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Ground Based Inerting Overview __________________ An Overview of the FAA Technical Center’s Commercial Aircraft Fuel Tank Inerting Research August 29 th-30 th, 2000 International Aircraft Systems Fire Protection Working Group AAR-422 Fire Safety R&D

Ground Based Inerting Overview __________________ Outline • Work Performed • Work in Progress • Proposed Work AAR-422 Fire Safety R&D

Ground Based Inerting Overview __________________ Work Performed • Cost Analysis of Ground Based Fuel Tank Inerting in the Commercial Fleet – Performed Study of Two Target Airports with Carriers – Estimated Cost 1. 6 B over 13 Years, 800 M HCWTs Only – Published Report in May 2000 • Inerting of a Vented Fuel Tank with Nitrogen Enriched Air – Performed Lab Experiments with Model Fuel Tank and Air Liquid NEA Generator – Jury Still Out on Effectiveness of Recirc and Replace – Report to be Published October 2000 AAR-422 Fire Safety R&D

Ground Based Inerting Overview __________________ Work In Progress • Boeing Flight Test Instrumentation – Design Build and Integrate System that Measures 8 Channels of Continuous Oxygen Concentration Data at different locations in a Boeing BBJ CWT – Failed to Make Fiber Optic Fluorescence System Work • Fuel Tank Flammability at Increased Altitude and Decreased Oxygen Concentration – Performed Ignition Experiments with Model Fuel Tank in Pressure Chamber – Initial Study at Sea Level with Reduced Oxygen Concentrations – Work to Continue with Increased Altitude to 40 K feet AAR-422 Fire Safety R&D

Ground Based Inerting Overview __________________ Future Work • Full Scale Ground Based Fuel Tank Inerting – Presently Seeking a Decommissioned B-737 for Ground Based Testing. – Plan Extensive Instrumentation and Testing Beginning in 2001. • On-Board OBIGGS Feasibility Study – Solicit Paper Designs with Performance Estimates from Several Venders • Fuel Load Effect on an Inert Ullage Space at Altitude – Use Model Fuel Tank and Altitude Chamber to Measure the Effect of Decreased Pressure on Ullage Space Oxygen and Hydrocarbon Concentration at Different Fuel Loads AAR-422 Fire Safety R&D
Boeing GBI Flight Test Ground Based Inerting Proof
Ground Tissue What is Ground Tissue Ground Tissue
Inerting System Testing NEA Ullage Washing Testing With
FullScale GroundBased Inerting Full Scale GBI Testing with
LPGLNG cargo handling Inerting izlaz iz doka Gassingup
Inerting Systems for Commercial Airplane Fuel Tanks Alan
Inerting Fuel Load Effects Fuel Load Effects on
Modeling of Single Bay Fuel Tank Inerting for