非均质移动颗粒床的渗流换热模型与数值模拟

doi:10.3969/j.issn.0438-1157.2014.02.022

化工学报 ›› 2014, Vol. 65 ›› Issue (2): 522-531.DOI: 10.3969/j.issn.0438-1157.2014.02.022

非均质移动颗粒床的渗流换热模型与数值模拟

刘彬¹, 王美琪¹, 闻岩², 郝晓辰¹

1 燕山大学信息科学与工程学院, 河北秦皇岛 066004;
2 燕山大学机械工程学院, 河北秦皇岛 066004

收稿日期:2013-04-13 修回日期:2013-06-22 出版日期:2014-02-05 发布日期:2014-02-05
通讯作者: 王美琪
基金资助:
国家自然科学基金项目（51076135）；河北省科学技术研究与发展计划科技支撑计划项目（12215616D）。

Seepage heat transfer model and numerical simulation for heterogeneous moving particulate bed

LIU Bin¹, WANG Meiqi¹, WEN Yan², HAO Xiaochen¹

1 Institute of Information Technology and Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China;
2 Institute of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China

Received:2013-04-13 Revised:2013-06-22 Online:2014-02-05 Published:2014-02-05
Supported by:
supported by the National Natural Science Foundation of China (51076135) and the Science and Technology Support Program of Hebei Province (12215616D).

摘要/Abstract

摘要： 针对非均质移动颗粒床的换热过程，建立了其渗流换热的数学模型，提出了COADI-GS算法，采用此算法对移动颗粒床的气固换热过程进行流热耦合数值模拟。通过对均质与非均质这两种不同移动颗粒床换热模型的仿真结果进行比较，发现两者的床内温度分布有较大差异，非均质移动颗粒床模型能更为准确地描述床层内的渗流换热过程。计算结果表明，供风压力的增加虽有利于熟料颗粒的冷却，但会降低回收风的温度；颗粒温度随床层移动速度的增加而升高，近似为线性关系。

关键词: 非均质, 移动床, 多孔介质, 渗流换热, 数值模拟

Abstract: For heat transfer process in a heterogeneous moving particulate bed, a mathematical model for the seepage heat transfer process was established. The COADI-GS algorithm was proposed to solve thermally coupled flow of gas-solid heat transfer process numerically. The comparison for the simulation results on the heat transfer models for homogeneous and heterogeneous moving beds demonstrates that the temperature distributions in the two beds are quite different and the model for the heterogeneous moving particulate bed is more accurate for the seepage and heat transfer process in the bed. The results show that the increase of wind pressure is conducive to the cooling of clinker particles, but it may reduce the temperature of recovered wind. The particle temperature increases with the moving speed almost linearly.

Key words: heterogeneous, moving bed, porous media, seepage and heat transfer, numerical simulation

中图分类号:

TQ172.1

刘彬, 王美琪, 闻岩, 郝晓辰. 非均质移动颗粒床的渗流换热模型与数值模拟[J]. 化工学报, 2014, 65(2): 522-531.

LIU Bin, WANG Meiqi, WEN Yan, HAO Xiaochen. Seepage heat transfer model and numerical simulation for heterogeneous moving particulate bed[J]. CIESC Journal, 2014, 65(2): 522-531.

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非均质移动颗粒床的渗流换热模型与数值模拟

Seepage heat transfer model and numerical simulation for heterogeneous moving particulate bed

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