CAJ | 학술논문

采用欧拉双流体模型和标准湍流模型对生物质双循环流化床冷态下整体流动进行了二维数值模拟。模拟分析了生物质双循环流化床在燃烧炉一次风量为80 m3／h、气化炉一次风量为10 m3／h、下返料风量为5 m3／h、气化炉内含料量为15 kg的冷态实验稳定运行的工况下，固体颗粒分布、双循环流化床压力分布和粒子示踪轨迹运动情况。为设计、优化生物质双循环流化床和热态实验调控提供理论依据。
채용구랍쌍류체모형화표준단류모형대생물질쌍순배류화상랭태하정체류동진행료이유수치모의。모의분석료생물질쌍순배류화상재연소로일차풍량위80 m3／h、기화로일차풍량위10 m3／h、하반료풍량위5 m3／h、기화로내함료량위15 kg적랭태실험은정운행적공황하，고체과립분포、쌍순배류화상압력분포화입자시종궤적운동정황。위설계、우화생물질쌍순배류화상화열태실험조공제공이론의거。
Entire 2-D numerically simulated of the cold biomass double circulating fluidized bed was studied using Euler/Euler fluid granular model and k-ε turbulent model.The solid particle distribution , the pressure distribution and the particle movement orbits were simulated in biomass double circulating fluidized bed under the follow conditions : air flow rate of 80 m3/h in combustion furnace , air flow rate of 10 m3/h in gasifier, air flow rate of 5 m3/h in lower u-valve and amount of 15 kg materials in gasifier.The result presented the theoretic foundation for the design of biomass double circulating fluidized bed and the control of hot experiments.