High concentrator photovoltaic is expected to play an increasingly important role in electrical energy production. Controlling multijunction solar cell temperature within the recommended conditions is a key challenge that limits the functionality of this growing technology making the identification of an efficient cooling method an essential requirement. Hence, in this research, new heat sink configurations based on a serpentine design are studied and compared with the straight channel arrangement. To assess the performance of the high concentrator photovoltaic, a 3D model is built for the multijunction cell and heat sink and impact of the heat sink configuration, mass flow rate, and concentration ratio are investigated. The results include solar cell temperature distribution, thermal resistance, pumping power, thermal and electrical energy and exergy efficiencies. The study shows that the straight channel is not recommended for concentration above $1000\times$, whereas the centre inlet serpentine design can maintain a uniform temperature distribution for the system for concentration up to $2000\times$. Temperature non-uniformity varies between 18 °C and 5 °C. The highest overall energy and exergy efficiencies reached 78% and 35.2% respectively at concentration of $2000\times$. The results prove the effectiveness of implementing a serpentine design as a new cooling scheme for the system.

高聚光光伏有望在电能生产中发挥越来越重要的作用。在推荐条件下控制多结太阳能电池温度是一个关键挑战，它限制了这种不断发展的技术的功能，使得确定有效的冷却方法成为一项基本要求。因此，在本研究中，研究了基于蛇形设计的新型散热器配置，并与直通道布置进行了比较。为了评估高聚光器光伏的性能，为多结电池和散热器构建了 3D 模型，并研究了散热器配置、质量流量和集中比的影响。结果包括太阳能电池温度分布、热阻、泵浦功率、热能和电能以及火用效率。研究表明，直通道不推荐用于浓度高于$1000\times$，而中心入口蛇形设计可以为系统保持均匀的温度分布，浓度高达 $\mathrm{2000年}\times$. 温度不均匀性在 18 °C 和 5 °C 之间变化。最高的整体能量和火用效率分别达到 78% 和 35.2%$\mathrm{2000年}\times$. 结果证明了将蛇形设计作为系统的新冷却方案的有效性。