| 容积式吸热器内聚集太阳能的传输特性研究 |
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| 引用本文： | 戴贵龙,夏新林,孙创.容积式吸热器内聚集太阳能的传输特性研究[J].工程热物理学报,2011(11). |
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| 作者姓名： | 戴贵龙 夏新林 孙创 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(No.50930007); 国家重点基础专项研究资助项目(No.2009CB220006) |
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| 摘 要： | 将泡沫孔筋等效成粒子系,建立了抛物面聚光器与容积式吸热器数理模型。基于Mie理论计算泡沫材料的散射特性,采用蒙特卡洛射线踪迹法模拟聚集太阳光在泡沫材料内的传输衰减特性。通过计算,获得了吸热器体积内的太阳能流吸收分布。结果表明:吸收太阳能流集中在吸热器底部,随着孔隙率和孔隙直径增加,吸热器内的太阳能吸收分布均匀性更好。研究结论为容积式太阳能吸热器结构设计与性能分析提供了参考。
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| 关 键 词： | 泡沫多孔材料 聚集太阳能 容积式吸收器 蒙特卡洛射线踪迹法 |
The Transport Characteristics of Concentrated Solar Radiation in Volumetric Receiver |
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| DAI Gui-Long XIA Xin-Lin SUN Chuang.The Transport Characteristics of Concentrated Solar Radiation in Volumetric Receiver[J].Journal of Engineering Thermophysics,2011(11). |
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| Authors: | DAI Gui-Long XIA Xin-Lin SUN Chuang |
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| Institution: | DAI Gui-Long XIA Xin-Lin SUN Chuang (School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China) |
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| Abstract: | The physical and mathematic model of foam volumetric absorbers associated with dish solar concentrator was set up,where the foam material was treated as the independent scattering particle system.The Mie scattering theory was employed to describe its scattering properties and the integrated transporting process of the concentrated solar radiation from the dish concentrator was simulated by the Monte Carlo ray-tracing method(MCRT).The distribution of absorbed solar energy per unit volume in volumetric absorb... |
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| Keywords: | foam material concentrated solar radiation volumetric solar receiver the MCRT method |
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