| 多孔介质太阳能集热组合墙的耦合传热与流动分析 |
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| 引用本文： | 陈威,刘伟. 多孔介质太阳能集热组合墙的耦合传热与流动分析[J]. 太阳能学报, 2008, 29(2): 220-226 |
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| 作者姓名： | 陈威 刘伟 |
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| 作者单位： | 1. 上海海事大学热能与动力教研室,上海,200135
2. 华中科技大学能源与动力工程学院,武汉,430074 |
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| 基金项目： | 国家自然科学基金 , 上海市教委资助项目 , 上海市重点专业建设项目 |
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| 摘 要： | 针对接触型和分隔型多孔介质太阳能集热组合墙系统,分析了太阳辐射及环境温度变化时,组合墙内传热与流动变化.多孔介质太阳能集热组合墙中,多孔介质起半透明隔热体和蓄热体的作用.多孔介质集热层的孔隙率、粒径、材料热导率和多孔介质集热层在组合墙中的位置对系统的采暖效果影响较大.
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| 关 键 词： | 太阳能 采暖墙 多孔介质 传热与流动 多孔介质 太阳能 集热 组合墙 耦合传热 流动分析 ABSORBER POROUS WALL COMPOSITE SOLAR FLOW HEAT TRANSFER 影响 效果 采暖 位置 热导率 材料 粒径 |
| 文章编号： | 0254-0096（2008）02-0220-07 |
| 收稿时间： | 2006-10-20 |
| 修稿时间： | 2006-10-20 |
ANALYSIS OF THE HEAT TRANSFER AND FLOW IN SOLAR COMPOSITE WALL WITH POROUS ABSORBER |
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| Chen Wei,Liu Wei. ANALYSIS OF THE HEAT TRANSFER AND FLOW IN SOLAR COMPOSITE WALL WITH POROUS ABSORBER[J]. Acta Energiae Solaris Sinica, 2008, 29(2): 220-226 |
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| Authors: | Chen Wei Liu Wei |
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| Abstract: | The heat transfer and flow in the solar composite wall with porous absorber were studied in the paper. The unsteady numerical simulation was employed to analyze the performance of the flow. and temperature field in the composite solar wall. The overplus heat was stored within the porous absorber during solar radiation and there was stratification in the porous layer and the porous absorber works as thermal insulator to some extent when no sunshine was available. The influence of particle size, porosity, thermal conductivity of porous absorber and its position in the solar composite wall on the heating room temperature is significant. The results show that all these factors should be taken into account for a better design of a heating system. |
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| Keywords: | solar energy heating wall porous medium heat transfer and flow |
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