Experimental analysis and computational fluid dynamics simulations for heat transfer in sound assisted fluidized bed of fine powders

Wankhede Uday; Sonolikar Ram

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Experimental analysis and computational fluid dynamics simulations for heat transfer in sound assisted fluidized bed of fine powders

机译：声粉辅助流化床传热的实验分析和流体动力学模拟

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Fine powders in the size range of 20-200 μm are widely used in industries for fluid bed operations and are ideal for gas-solid reactions because of their large external surface areas and favorable heat transfer rates. The fine powders have very poor flow characteristics. Most of the earlier research work in heat transfer in bubbling fluidized beds is focused on coarse grained Geldart B and D particles. Acoustic energy of sufficient intensity and sound pressure level improved the quality of fluidization of fine powders. The objective of this investigation is experimental analysis and CFD simulations for heat transfer in a fluidized bed of fine powders at different acoustic conditions. The Eulerian approach has been identified as an efficient method for the numerical simulation of fluidized beds. The experimental and CFD results are in good agreement with each other.

机译：尺寸在20-200μm范围内的细粉由于其较大的外表面积和良好的传热率而广泛用于流化床操作行业，是气固反应的理想选择。细粉的流动特性非常差。鼓泡流化床传热的大部分早期研究工作都集中在粗粒Geldart B和D颗粒上。足够强度和声压级的声能改善了细粉的流化质量。这项研究的目的是在不同声学条件下细粉流化床中传热的实验分析和CFD模拟。欧拉方法已被认为是流化床数值模拟的有效方法。实验结果和CFD结果彼此吻合良好。

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《Thermal science》 |2017年第5期|共11页
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Wankhede Uday; Sonolikar Ram;
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1. Fluidization and Surface-to-bed Heat Transfer in a Sound Assisted Bubbling Fluidized Bed of Fine Powders [J] . U. S. Wankhede International Journal of Applied Engineering Research . 2009,第4期

机译：细粉助声鼓泡流化床中的流化和表面到床的传热
2. Heat Transfer Characteristics and Particle Behavior Around a Horizontal Heating Surface Immersed in a Sound Assisted Fluidized Bed of Fine Powders [J] . U.S. Wankhede International journal of dynamics of fluids . 2009,第2期

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3. Effect of acoustic field on heat transfer in a sound assisted fluidized bed of fine powders [J] . Wankhede U.S., Sonolikar R.L., Thombre S.B. International Journal of Multiphase Flow . 2011,第9期

机译：声场对细粉助声流化床传热的影响
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5. Heat transfer in a sound-assisted fluidized bed. [D] . Huang, Deshau. 2003

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7. HEAT TRANSFER IN SOUND ASSISTED FLUIDIZED BED OF FINE POWDERS : A REVIEW [O] . Sonal K. Gaikwad . 2016

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Experimental analysis and computational fluid dynamics simulations for heat transfer in sound assisted fluidized bed of fine powders

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