【摘要】 利用粒子与壁面碰撞频率及接触时间的实验数据,以及粒子扰动对提高局部对流换热系数的实验数据,修正了理论模型,并预测了沿流化床中水平埋管周围不同角度的局部传热系数变化规律。它与有关文献的实验结果吻合良好。更多还原

【Abstract】 With the experimental data of particle-wall contact frequency and contact time, along with the data of the increasing rate of local convective heat transfer of the gas flow disturbed by particle movement ,the previous single-particle model has been improved and the varying local heat transfer coefficients around an immersed horizontal tube have been predicted. The prediction shows good agreement with experimental data.更多还原