液体燃料用燃焼炉の煙道内における微粒子挙動に関する研究(熱工学,内燃機関,動力など)

概要

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In order to reduce CO_2 emission from combustion systems with fossil fuel, it is necessary to increase thermal efficiency of them. Heat recovery from flue gas is very effective in increasing thermal efficiency of a small furnace. Through this heat recovery, temperature of flue gas decreased with increasing a recovery amount of heat. It is feared that a decrease of temperature newly causes secondary condensed particles in a stack, and these particles become a problem in future. In this study, therefore, particulate matters (PM) in a flue gas stream from a spray combustion furnace were sampled and their compositions and size distributions were measured. As the result, it was shown that the mass of volatile matters in PM and the number of particle gradually increased along the stack. It was found that, moreover, the condensation of volatile matters probably occurred under the condition that flue gas temperature was below 460℃. From these results, it was clear that secondary condensed particles were formed in the stack.
一般社団法人日本機械学会の論文
2008-03-25