G0601-8-6 液体燃料を用いた高温空気燃焼の可燃限界に対する熱損失の影響(熱工学(8)燃焼(3))

概要

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The effect of heat loss on the flammability limit is investigated in a liquid fuel HiTAC. Mixtures of air and N_2 are used as oxidizers. Preheated temperatures of the oxidizers are up to 1023K. The fuel is kerosene. Cooling tubes are installed inside the furnace to investigate the effect of heat loss. Heat losses removed through the cooling tubes are up to 2.3kW. The flammability limit is determined on the basis of the CO concentration which is measured at the exit of furnace. The increase in heat loss shifts the flammability limit to higher preheated temperature and O_2 concentration conditions. The flammability limits occurred in the different heat loss conditions are evaluated on the basis of the flamelet model. The evaluated flammability limits are in good agreement with the experimental results.
2009-09-12