【摘要】 聚光太阳电池温度是影响电池转换效率、安全稳定性及使用寿命的重要因素。针对聚光光伏系统中因高热流密度带来的电池散热问题,设计一种新型平板式不锈钢材质热管散热器,并进行相关的实验研究。实验结果表明:热管散热器的最佳充液率范围为20%~30%;新型热管散热器基板的扩散热阻约为0.1 K/W,而普通铝型材为0.38 K/W,热管散热器均温性更佳;在自然对流条件下,当确保模拟电池温度不超100℃时,热管散热器可应用于最大聚光比为78.57的太阳电池散热;且研究发现工作范围内的太阳电池角度变化对热管散热器的影响不大,热管散热器能同时适应折射型和反射型聚光光伏系统。更多还原

【Abstract】 The temperature of concentrating PV cell is an important factor affecting its conversion efficiency,safety,stability and service life. For the cooling problem of PV cell caused by high heat flux in concentrating PV systems,a new flat stainless steel heat pipe radiator was designed and related experiments research was conducted. The results show that the best liquid filling rate of heat pipe radiator is 20%-30%,the diffusion heat resistance of substrate for heat pipe radiator is about 0.1 K/W,and it is 0.38 K/W for ordinary aluminium profiler,the mean temperature of heat pipe radiator is even better. Under natural convection conditions,the heat pipe radiator can be applied to heat radiation of PV cell with maximum concentration ratio of 78.57 when the analog cell temperature does not exceed 100 ℃;The study also finds that the angle change of PV cell has little effect on heat pipe radiator within the operating range,and the heat pipe radiator can simultaneously accommodate refractive and reflective concentrator PV systems.更多还原