| 摘要 |
PROBLEM TO BE SOLVED: To reduce test costs by simplifying ignition probability prediction experiment and shortening a test period. SOLUTION: An ignition probability prediction experimental device includes: a concentration measurement part 3 for calculating combustible concentration appearance probability which is in the range of combustible concentration from probability density distribution, by having a concentration variation measurement device 11 for measuring concentration variation of a combustible gas g, containing a trace amount of a hydrocarbon-based gas, released from a gas releasing source 6 arranged in an experimental room C or a measurement shell of a wind tunnel test device, and obtaining the probability density distribution based on appearance frequency of concentration from the concentration variation of the combustible gas g; and an ignition measurement part 4 for obtaining ignition probability, by measuring whether the combustible gas g ignites in the same point as a point measuring the concentration variations in the combustible gas g. The concentration variation measurement device 11 includes information obtained from mutual relation of the concentration of the hydrocarbon based gas when diluting the combustible gas g with the air in the atmosphere and output when measuring the hydrocarbon based gas as a database. COPYRIGHT: (C)2008,JPO&INPIT
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