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| 基于计算流体力学的吸附过程模拟研究 | |
| 引用本文： | 郑新港,刘应书,杨俊峰,刘文海.基于计算流体力学的吸附过程模拟研究[J].北京工业大学学报,2012,38(1):145-150. |
| 作者姓名： | 郑新港 刘应书 杨俊峰 刘文海 |
| 作者单位： | 1. 北京科技大学机械工程学院,北京100083／中国恩菲工程技术有限公司,北京100038 2. 北京科技大学机械工程学院,北京,100083 3. 中国环境科学研究院,北京,100012 |
| 基金项目： | 国家"八六三"计划资助项目 |
| 摘 要： | 为了深入研究吸附剂颗粒上的吸附现象,采用计算流体力学软件模拟了气体在单颗粒吸附剂上的吸附过程,模型中考虑了温度的影响并采用了非线性的吸附等温线.分析了颗粒外侧气体浓度作阶跃变化和抛物线变化时颗粒内的浓度分布和温度分布,并与文献值及线性驱动力模型做了对比.结果表明,计算值与文献值吻合较好,说明此数值模型适用于气体吸附过程的模拟研究;线性驱动力模型在预测O2的吸附尤其是在边界条件作阶跃变化时误差较大. |
| 关 键 词： | 单颗粒吸附剂 浓度分布 温度分布 数值模拟 |
Simulation of Gas Adsorption Based on Computational Fluid Dynamics |
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| ZHENG Xin-gang,LIU Ying-shu,YANG Jun-feng,LIU Wen-hai.Simulation of Gas Adsorption Based on Computational Fluid Dynamics[J].Journal of Beijing Polytechnic University,2012,38(1):145-150. | |
| Authors: | ZHENG Xin-gang LIU Ying-shu YANG Jun-feng LIU Wen-hai |
| Affiliation: | 1(1.School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China; 2.China ENFI Engineering Corp,Beijing 100038,China; 3.Chinese Research Academy of Environmental Sciences,Beijing 100012,China) |
| Abstract: | To further study the adsorption phenomenon occurred inside the sorbent particles,the gas adsorption process is simulated by using the computational fluid dynamics software with consideration of the effects of temperature and non-linear sorption isotherm.Under the boundary conditions of step change and parabolic change,the distribution of the concentration and temperature inside the sorbent is analyzed and compared with the values of literature and LDF’s predictions.Results show that the calculated values agree well with literature values,and this numerical model is capable of simulation of the gas adsorption process.The results also show that the prediction of O2 adsorption through the LDF model has large error especially under the boundary condition of step change. |
| Keywords: | sorbent concentration distribution temperature distribution numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |