The characteristics of gas-solid flow and wall heat transfer in a fluidized bed reactor

Hang Seok Choi; Dietrich Meier

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The characteristics of gas-solid flow and wall heat transfer in a fluidized bed reactor

机译：流化床反应器中气固流动和壁传热的特征

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Numerical study using computational fluid dynamics has been carried out to investigate the heat transfer characteristics of a laboratory fluidized bed reactor. The fluidized bed reactor of vTI (Johann Heinrich von Thiinen-Institute)-Institute of Wood Technology and Wood Biology is modeled. For the simulation of multiphase flow and thermal fields, an Eulerian-Eulerian approach is applied. The flow and thermal characteristics of the reactor are fully investigated for the wide range of superficial gas velocities and two different particle diameters. In particular, the contributions of the gas bubble and emulsion phase flows on the wall heat transfer are scrutinized. From the predicted results, it is fully elucidated that particular near-wall bubble motions mainly govern the wall heat transfer.

机译：已经进行了使用计算流体动力学的数值研究，以研究实验室流化床反应器的传热特性。对vTI（Johann Heinrich von Thiinen-研究所）-木材技术和木材生物学研究所的流化床反应器进行了建模。为了模拟多相流和热场，采用了欧拉-欧拉方法。对于表观气体速度的宽范围和两个不同的粒径，对反应器的流量和热特性进行了全面研究。尤其要仔细研究气泡和乳液相流对壁传热的影响。从预测结果可以充分说明，特定的近壁气泡运动主要控制着壁的热传递。

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《Heat and mass transfer》 |2012年第9期|p.1513-1524|共12页
作者
Hang Seok Choi; Dietrich Meier;
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作者单位

Department of Environmental Engineering, Yonsei University, Wonju 220-710, Republic of Korea;

VTI-Institute of Wood Technology and Wood Biology, Hamburg, Germany;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
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The characteristics of gas-solid flow and wall heat transfer in a fluidized bed reactor

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