摘要
以树皮、褐煤、Ⅰ类烟煤为例,分析了沸腾层内未燃烧燃料中的水分蒸发吸热对埋管吸热份额和沸腾层温度的影响,得到了高水分燃料的沸腾层烟气热平衡方程。计算和分析表明,对高水分燃料,沸腾层内未燃烧燃料中的水分蒸发吸热所需热量较大,在沸腾层烟气热平衡方程中应予考虑。
A thermal energy balance equation has been obtained for the flue gases of a fluidized bed operating on high-moisture fuels. With bark, lignite and bituminous coal of grade 1 serving as fuels analyzed was the effect of heat absorption during the water evaporation of unburned fuel in the fluidized bed on two factors. The latter are the quantity of heat absorbed by a submerged tube and the temperature of the fluidized bed. The results of calculation and analysis indicate that when high-moisture fuels are burned, the heat quantity needed for water evaporation-related heat absorption is relatively great. In view of this, the latter should be taken into account in the thermal energy balance for the flue gases of a fluidized bed.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2002年第6期635-637,共3页
Journal of Engineering for Thermal Energy and Power
