生物质双循环流化床冷态下整体流动二维模拟  

2-D Numerical Simulation of Cold Mass Flow in Biomass Dual Circulating Fluidized Bed

作　　者：李松[1] 王琪[1] 刘春慧[1] 李锦生[1] 范晓旭[2] 

机构地区：[1]吉林农业大学工程技术学院,吉林长春130118 [2]山东省科学院能源研究所,山东济南250014

出　　处：《广州化工》2015年第16期91-93,共3页GuangZhou Chemical Industry

基　　金：长春市科技基础条件与平台建设专项(14KP022);吉林农业大学青年启动基金(201122)

摘　　要：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。Entire 2-D numerically simulated of the cold biomass double circulating fluidized bed was studied using Euler/Euler fluid granular model and k-8 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 m^3/h in combustion furnace, air flow rate of 10 m^3/h in gasifier, air flow rate of 5 m^3/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.

关 键 词：生物质 双循环流化床 冷态 二维数值模拟 

分 类 号：TK6[动力工程及工程热物理—生物能]