在太阳能塔式热发电空气吸热器工作过程中,吸热器玻璃窗受到聚焦太阳光、环境以及吸热面（体）的复合辐射。本文采用改进蒙特卡罗法、有限容积法,研究了太阳能空气吸热器石英玻璃窗半透明介质内部辐射与导热的耦合换热,研究了不同厚度半透明介质石英玻璃窗在工作面处于不同第三类边界条件下的稳态温度分布。研究表明石英玻璃的厚度和内侧空气温度对石英玻璃窗内部最高温度以及温度分布有较大影响,而表面传热系数对石英玻璃窗内部最高温度以及温度分布的影响相对较小。
In a solar tower receiver system,window for solar receiver emits radiative energy and absorbs radiation from concentrated sunlight,ambient and itself.In this paper,the radiative heat transfer of a semitransparent quartz window for a solar receiver is simulated by modified Monte Carlo method and finite volume method（FVM）.It is found that the maximum interior temperature and temperature profiles are very sensitive to the depth of window and the inside temperature of ain However,the convective heat transfer between window inner side and air has a minor effect on the maximum interior temperature and temperature profiles.
参考文献
| [1] | A. Kribus;P. Doron;R. Rubin;J. Karni;R. Reuven;S. Duchan;E. Taragan .A multistage solar receiver : the route to high temperature[J].Solar Energy,1999(1/3):3-11. |
| [2] | J. Karni;A. Kribus;R. Rubin;P. Doron .The "porcupine": a novel high-flux absorber for volumetric solar receivers[J].Journal of Solar Energy Engineering,1998(2):85-95. |
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