文档介绍：Fuel Tank Ignition Studies at Reduced Pressures & Oxygen 油箱着火的的研究在压力减小&amp；氧
Goals
To determine the oxygen conceFuel Tank Ignition Studies at Reduced Pressures & Oxygen 油箱着火的的研究在压力减小&amp；氧
Goals
To determine the oxygen concentration needed to fully inert a fuel tank at different altitudes
To quantify the difference in severity of the fuel tank ignitions, both at altitude and reduced oxygen concentration
Experimental Apparatus
9 ft3 fuel tank placed within 10 m3 pressure chamber
Heater placed on bottom of tank
Vacuum pump used to evacuate chamber to simulate desired altitude
14 thermocouples – fuel, ullage, walls & floor
Pressure Transducers – peak & quasi-static
Analyzers – HC (2 ports) & O2
Test Program
Preliminary Methane Tests
Determine LFL of Methane at Sea Level and compare to numbers cited in literature
Determine oxygen concentration needed to fully inert a fuel tank at:
Altit