高灰分炭燃焼時のNO_x・灰中未燃分排出特性

概要

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A high-ash coal is fired in a pulverized coal combustion test furnace (thermal input of coal: 760kW). A/C (mass ratio of primary airflow rate to coal feed rate [kg/h]/[kg/h]) and two-stage combustion ratio are changed, and blends of the high-ash coal and a bituminous coal are also fired. The emission characteristics of NO_x and unburned carbon in fly ash are investigated in detail. A/C affects the emission of NO_x and unburned carbon in fly ash on the high-ash coal combustion. It is desirable that primary air flow rate on the high-ash coal is almost same with that on the bituminous coal. The high-ash coal has an influence on the blended combustion.
社団法人日本機械学会の論文
2009-04-25