摘要
采用CFD软件,选用离散相追踪模型对直吸式太阳能热化学反应器内悬浮粒子系的运动轨迹进行三维数值模拟,从而得到反应器内离散颗粒相的运动轨迹.对比不同进口速度下反应器内的粒子轨迹可知,反应器存在一个最佳进口速度,使悬浮粒子系在反应器内达到较好的悬浮流动状态.通过分析模拟结果,在采用粒径为0.5μm,密度为550 g/m3的炭黑颗粒的情况下,理论研究所采用的反应器的最佳进口速度为2 m/s.
A discrete phase model with the CFD software is used to simulate flow characteristics of particles in the direct absorption solar thermochemical reactor to obtain the trajectories of the discrete particle phase in the reactor. Particle trajectories of the different inlet velocities are analyzed. An optimum inlet velocity can be determined from the flow state in the reactor when particles have the residence time in the reactor long enough while the particles do not deposit on the bottom of the reactor. The optimum inlet velocity is 2 m/s according to simulation results of the reactor described when the particle size is 0.5 microns and the density of carbon black particles is 550 g/m^3.
出处
《上海电力学院学报》
CAS
2015年第5期409-412,共4页
Journal of Shanghai University of Electric Power
基金
上海市教育委员会科研创新项目(13ZZ130)
关键词
太阳能
热化学反应器
气固两相流动特性
solar energy
thermochemical reactor
the gas-solid flow characteristics
