Temperature distribution in the fluidized bed
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In Davidson’s book “Fluidization,” regarding heat transfer between solid particles and fluids: “Throughout the entire fluidized bed, the temperature of the solid particles is actually equal.” ” I need experts to explain: 1. Typically, in a fluidized bed, solid materials at normal temperature are added continuously or intermittently; is the temperature of the solid particles in the bed not uniform, especially in the area affected by the addition? 2. The temperature distribution in the fluidized bed is uneven (such as flow bias, dead zones, etc.). Which areas are primarily affected by the gas, and which are primarily affected by the solids? Is this contrary to the definitions given in the book?
When solid particles are added, the temperature in the affected area of the fluidized bed certainly decreases, and this is related to the location where the solid particles are added.