【摘要】 集热体对太阳能热电发电系统性能具有重要的影响.文中建立了一个太阳能热电发电系统的三维模型,采用ANSYS软件的热电模块研究了集热体物性对太阳能热电发电系统性能的影响.计算结果表明,集热体材料的选择对热电性能有很大影响,高吸收率和低发射率的集热体材料有助于提升太阳能热电发电系统的性能,但随着聚光比的提高,增长幅度逐渐减小,而热导率的影响则较小;高聚光比下,集热体上表面热辐射对太阳能热电系统效率的影响较大,低聚光比下则影响不大.更多还原

【Abstract】 Heat collector plays an important role in performance of solar thermoelectric system.A 3D model of solar thermoelectric system is proposed here.Effect of material properties of heat collector on performance of solar thermoelectric system has been studied using ANSYS thermoelectric module.Results show that emissivity and absorptivity of heat collector are help to increase the performance of solar thermoelectric system,but the increment slows down with the increase of concentration ratio.While thermal conductivity of heat collector has little influence on the performance of solar thermoelectric system.Thermal radiation of the surface of heat collector has a great influence on the performance of solar thermoelectric system at high concentration ratio while it has little influence at low concentration ratio.更多还原