A mechanistic theory for heat transfer between fluidized beds of large particles and immersed surfaces

摘要: Abstract A mechanistic theory for the heat transfer between an immersed surface and a fluidized bed of large particles is developed by adopting well accepted concept that in absence radiation total coefficient sum conductive ( h cond ) convective conv components. The solids are assumed to be distributed around arrangement unit orthorhombic cells. then computed considering composite infinite layer gas solid solving unsteady state conduction equations under defined boundary initial conditions. evaluated assuming turbulent on disrupted at front half particle reformed its wake. theoretical model predictions good agreement with available experimental data systems. proposed considered predictive design tool.