G0600-6-2 高温空気燃焼の吹き飛び限界の解明(熱工学部門一般講演(6):燃焼(1))

概要

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The blowout limit of high temperature air combustion (HiTAC) has been investigated in a laboratory-scale furnace. A mixture of air and N_2 is used as oxidizer. The preheat temperature of the oxidizer is up to 1130K and O_2 concentration is down to 3%. Propane is used as fuel. The measured temperature distribution in the furnace indicates that the flame under HiTAC condition is a lifted flame. The liftoff height is evaluated by ignition delay and velocity of fuel. The ignition delay is calculated from CHEMKIN code for reactant concentration and temperature at the flame base. The evaluated values of liftoff height under the blowout conditions are nearly equal. This result implies that the liftoff height is useful in characterizing the flammability of HiTAC.
一般社団法人日本機械学会の論文
2010-09-04