| 一种气体低温吸附模型与计算 |
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| 引用本文： | 薛社生,李守先,刘阳.一种气体低温吸附模型与计算[J].计算物理,2014,31(4):412-416. |
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| 作者姓名： | 薛社生 李守先 刘阳 |
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| 作者单位： | 北京应用物理与计算数学研究所, 北京 100094 |
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| 基金项目： | 国家自然科学基金(11371067)资助项目 |
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| 摘 要： | 研究化学氧碘激光器中工作气体氧的低温吸附.考察气体流过沸石多孔床的压力与速度的关系,建立吸附剂吸收的物质量与气流中物质量关系的吸附平衡方程.由吸附物量较少的特点,得出在确定的压力梯度下速度近似为常数.吸附平衡方程与吸附速率方程,构成低温吸附模型方程,其中,亨利等温线方程作为辅助关系.对模型方程做数值求解,得到气流中单态氧浓度及吸收的单态氧浓度随时间变化的规律,及浓度分布的长时间渐近特征.
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| 关 键 词： | 吸附 多孔介质 化学氧碘激光 数值计算 |
| 收稿时间： | 2013-09-13 |
| 修稿时间： | 2013-11-25 |
A Model of Single Delta Oxygen Cryosorption |
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| XUE Shesheng,LI Shouxian,LIU Yang.A Model of Single Delta Oxygen Cryosorption[J].Chinese Journal of Computational Physics,2014,31(4):412-416. |
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| Authors: | XUE Shesheng LI Shouxian LIU Yang |
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| Institution: | Institute of Applied Physics and Computational Mathematics, Beijing 100094, China |
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| Abstract: | Cryosorption of oxygen produced in chemical oxygen iodine laser(COIL) is considered. From the view point of mass conservation, a linear relation between gas pressure gradient and gas velocity is used with which gases flows through a zeolite porous bed is obtained. An adsorption balance equation, describing relation of components in gas flow and adsorped components,is established with adsorption dynamics equation. Henry relation is employed as isothermal equation. A set of cryosorption model equations is solved numerically. Oxygen concentration evolution,and long time character of concentrations are given. |
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| Keywords: | cryosorption porous material COIL numerical computation |
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