本研究以CFD計算流體力學的方法,模擬太陽能模組的散熱性能與所受參數的影響。這些參數包括HCPV模組仰角位置與置放方式、大氣溫度、直射日照量、風速、風向、HCPV模組不同仰角位置的風向、HCPV模組高度、HCPV模組散熱孔設置方式與散熱孔之孔隙率。當建立CFD在聚光型太陽能發電系統散熱方面的研究與設計能力時,未來可以進一步降低模組溫度增加發電效率。由計算結果顯示,HCPV模組溫度以直置方式較低,且模組仰角於90o位置散熱效果最好。大氣中直射日照量和氣溫,與HCPV模組溫度約成正比關係。且風速與風向角度較大時,對HCPV模組散熱效果較明顯。此外,HCPV模組高度降低,會使得HCPV模組散熱效率變差。於HCPV模組設置散熱孔方面,HCPV模組設置散熱孔可以提升模組散熱效率,且於壁面的上下角落處各增設一散熱孔,可以增加空氣流量,有效降低HCPV模組溫度,且散熱孔的孔隙率較大時,對於HCPV模組散熱較有利。
Cooling of photovoltaic cells under high intensity of the solar radiation is one of the major concerns when designing concentrating photovoltaic systems. The cell voltage/power will decrease if the solar PV cell temperature is overheated. The heat dissipation performance of photovoltaic cells is numerically investigated utilizing CFD method. The parameters that affect the temperature of HCPV are studied systematically. The simulations focus specifically on the effects of the module elevation angles, the height of the module, the direction of the incident wind, wind velocity, atmosphere temperature, direct irradiation and the configuration of the cooling holes. In general, the results show that the cooling performance of the HCPV is fundamentally dependent on the elevation angles of the module and the direction of the incident wind. A higher HCPV not only provides more effective for free convection within the module but increases the area of heat dissipation for the module. In addition, it is shown that the cooling holes set increasing the cooling performance of the HCPV module significantly.