摘要
基于欧拉多相流模型,自编化学反应子模型,建立生物质流化床气化动力学模型,对一实验室规模的流化床生物质气化炉进行数值模拟,主要研究气化温度、α对产气组分、蒸汽分解率等的影响。结果表明,随着温度的升高,CO含量降低,H2含量升高,蒸汽分解率升高。α增大,蒸汽分解率先增大后减小。计算结果和实验结果进行了比较,二者基本吻合,表明基于欧拉多相流的动力学模型能对流化床生物质气化进行比较准确的模拟。
Based on the Euler multiphase flow models and self programing chemical reaction model,the dynamical model of biomass gasification in a fluidized bed is developed.A labscale biomass fluidized bed is simulated to research the effect of temperature and ER on composition of gas and steam decomposition rate.Results show that content of CO drops,c ontent of H2 rises and steam decomposition rate rises with elevated temperature.Steam decomposition rate rises firstly and then drops with increasing ER.Simulation results coincide with that of experiments which shows that the dynamical model based on Euler multiphase flow can be used to simulate biomass gasification in fluidized bed.
出处
《锅炉技术》
北大核心
2012年第6期70-74,共5页
Boiler Technology
基金
南京工程学院基金(KXJ08018)
关键词
流化床
生物质气化
数值模拟
fluidized bed
biomass gasification
simulation
