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Low Fuel Load Flammability Work

Low Fuel Load Flammability Work. Steve Summer Project Engineer Federal Aviation Administration Fire Safety Branch, AAR-440. International Aircraft Systems Fire Protection Working Group Grenoble, France June 21-22, 2004. Objective.

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Low Fuel Load Flammability Work

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  1. Low Fuel Load Flammability Work Steve Summer Project Engineer Federal Aviation Administration Fire Safety Branch, AAR-440 International Aircraft Systems Fire Protection Working Group Grenoble, France June 21-22, 2004 IASFPWG – Grenoble, France

  2. Objective • Previous tests have shown that in order to see a significant decrease in flammability, the mass loading of the tank must be driven down to 0.25 kg/m3 or less. • If it were feasible to do this though, would fuel leaking in from other tanks be counterproductive to the flammability reduction. IASFPWG – Grenoble, France

  3. Apparatus • Utilizing same tank as was used in the fuel condensation modeling work. • Peristaltic pump used to pump fresh fuel into tank such that it sprays in at far side and traverses the entire bottom of the tank. • Fuel inside of tank is continuously drained at approximately the same rate that fresh fuel is entering. • Bottom heater temperature is maintained at 180ºF for 1.5 hours. IASFPWG – Grenoble, France

  4. Apparatus Fuel Spray Drain IASFPWG – Grenoble, France

  5. Preliminary Results Tests Conducted with a mass loading of approximately 6.6 kg/m3 and a recirculation flow rate of approximately 0.3 LPM IASFPWG – Grenoble, France

  6. Ongoing Testing • Testing is currently being conducted at nearly empty fuel loads and varying flow rates. • Further results to be presented at conference in Lisbon, November 2004. IASFPWG – Grenoble, France

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