煤量甏圆家重点实验宝 3)S pouted bed condition: D max >0.6DB minimum spout velocity Us=Umf+0.07(gD). 5(5-5) 4) Turbulent bed Initial velocity of transition =30/4-0171 Terminal velocity of transition Vk=70V24-07 National Lab, of Coal Combustion. HUST Wuhan 430074 P R CHINA E-mail:pcbnlcc@hust.edu.cnNL CC National Lab. of Coal Combustion, HUST Wuhan 430074, P. R. CHINA E-mail: pcbnlcc@hust.edu.cn 3) Spouted bed condition: Dbmax > 0.6DB minimum spout velocity Usl = Umf + 0.07(gD)0.5 (5-5) 4) Turbulent bed Initial velocity of transition Uc = 3.0  p d p − 0.17 Terminal velocity of transition Uk = 7.0  p d p − 0.77