4.4 Article

Experimental investigation of heat transfer from elliptic tubes heat exchanger immersed in a fluidized bed

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Summary: Heat transfer characteristics around an elliptic heated tube immersed in fluidized bed were experimentally investigated. The results showed that the minimum fluidization velocity increased with the increase in bed particles diameter. The local Nusselt number was larger at the sides of the heated tube and smaller at the stagnation and top. Meanwhile, both local and average Nusselt numbers increased with the increase of the fluidization velocity and decrease in particle diameter.

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