Temperature reduction in a photovoltaic module can improve its efficiency. This paper presents a radiation based photovoltaic module cooled by using composite phase change material that are not in direct contact with the photovoltaic module. A thermal heat transfer network is developed which improves efficiency of the photovoltaic module by using radiation mode to eliminate the issue of phase change material re-conduction, thereby controlling excess thermal energy stagnation in the module. Pure phase change material and composite phase change material are investigated and compared by integrating them 0.6 cm behind the photovoltaic module and performing simulations to determine the optimal thickness of the phase change material matrix. It was found that by using composite phase change material, the thermal resistance between the photovoltaic and the phase change material could be reduced and the photovoltaic module temperature decreased, due to the higher thermal conductivity of the composite phase change material. The simulated efficiency and temperature of the photovoltaic module with composite phase change material installed at the optimum thickness of 2.5 cm were 14.75% and 47.81 C, respectively. The numerical simulation of the new PV-PCM setup was validated experimentally, and simulation results were accurate within an average of 0.4 C.

光伏模块中的温度降低可以提高其效率。本文介绍了一种通过使用不直接与光伏模块接触的复合相变材料冷却的基于辐射的光伏模块。开发了一种热传递网络，该热传递网络通过使用辐射模式消除相变材料的再传导问题，从而控制模块中多余的热能停滞，从而提高了光伏模块的效率。对纯相变材料和复合相变材料进行了研究和比较，方法是将它们集成在光伏模块后方0.6厘米处，并进行仿真以确定相变材料矩阵的最佳厚度。发现通过使用复合相变材料，由于复合相变材料的更高的热导率，可以降低光伏材料和相变材料之间的热阻，降低光伏组件的温度。在2.5 cm的最佳厚度下安装复合相变材料的光伏模块的模拟效率和温度分别为14.75％和47.81C。实验验证了新PV-PCM装置的数值模拟，并且模拟结果在0.4 C的平均范围内是准确的。在2.5 cm的最佳厚度下安装复合相变材料的光伏模块的模拟效率和温度分别为14.75％和47.81C。通过实验验证了新PV-PCM装置的数值模拟，并且模拟结果在0.4 C的平均范围内是准确的。在2.5 cm的最佳厚度下安装复合相变材料的光伏模块的模拟效率和温度分别为14.75％和47.81C。实验验证了新PV-PCM装置的数值模拟，并且模拟结果在0.4 C的平均范围内是准确的。