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建立了太阳能热光伏系统(STPV)能量吸收及热辐射发电过程的数理模型,数值模拟了不同聚光器聚光比时辐射器的温度分布,研究了聚光比及辐射器温度对电池伏安输出特性及系统效率的影响.随着聚光比的增大,辐射器表面温度显著增高,电池的输出功率及系统效率也成直线增长;分析了影响系统效率的关键参数如滤波器、电池温度和辐射器上下端部材料表面反射率对系统性能与输出电功率的影响.计算结果证明了STPV系统的可行性,形成了高效STPV系统的优化设计方法.
The mathematical model of energy absorption and thermal radiation power generation in solar thermal photovoltaic system (STPV) was established. The temperature distribution of different concentrators was numerically simulated. The effect of concentration ratio and radiator temperature on the voltammetry Output characteristics and system efficiency.As the condenser ratio increases, the surface temperature of the radiator increases significantly, and the output power and the system efficiency of the battery also grow linearly. The key parameters affecting the system efficiency, such as the filter, the battery temperature And the surface reflectance of the upper and lower end of the radiator on the system performance and the output electric power.The calculation results proved the feasibility of the STPV system and formed the optimal design method of the efficient STPV system.