| 催化剂薄层内甲烷水蒸气重整反应强化管内对流换热的数值模拟 |
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| 引用本文： | 刘峰,姜培学,S.He. 催化剂薄层内甲烷水蒸气重整反应强化管内对流换热的数值模拟[J]. 工程热物理学报, 2006, 27(6): 987-989 |
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| 作者姓名： | 刘峰 姜培学 S.He |
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| 作者单位： | 1. 热科学与动力工程教育部重点实验室,清华大学热能工程系,北京,100084
2. 英国阿伯丁大学工程系,英国 AB24 3UE |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金;国家自然科学基金 |
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| 摘 要： | 本文以竖直圆管内壁催化剂薄层内发生甲烷水蒸气重整反应强化对流换热作为研究对象,对其进行了数值模拟．结果发现,催化剂薄层内的吸热化学反应可以有效地强化对流换热,降低流体和壁面温度,从而对壁面起到保护作用;极限热流密度的大小与流体的入口温度有关,存在最佳入口温度使极限热流密度最大．
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| 关 键 词： | 甲烷水蒸气重整反应 催化剂薄层 强化换热 |
| 文章编号： | 0253-231X(2006)06-0987-03 |
| 修稿时间： | 2006-01-19 |
NUMERICAL SIMULATION OF ENHANCED CONVECTION HEAT TRANSFER USING METHANE-STEAM REFORMING IN CATALYST FILMS IN A VERTICAL TUBE |
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| LIU Feng,JIANG Pei-Xue,S.He. NUMERICAL SIMULATION OF ENHANCED CONVECTION HEAT TRANSFER USING METHANE-STEAM REFORMING IN CATALYST FILMS IN A VERTICAL TUBE[J]. Journal of Engineering Thermophysics, 2006, 27(6): 987-989 |
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| Authors: | LIU Feng JIANG Pei-Xue S.He |
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| Abstract: | Convection heat transfer accompanied with steam reforming of methane in catalyst films in a vertical tube was investigated numerically. The numerical results showed that endothermic chemical reaction in catalyst films can enhance convection heat transfer effectively and decrease the temperature of the coolant and surface. The burned heat flux is related to the inlet temperature and the best inlet temperature exists to get the maximum burned heat flux. |
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| Keywords: | methane - steam reforming catalyst film enhanced heat transfer |
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