This study aims to experimentally investigate the passive cooling performance of a concentrated PV module, using two different designs of novel passive fin heat sinks namely, lapping and longitudinal. Design of Experiment (DOE) approach technique was employed to identify the optimum design parameters in terms of fin height, fin pitch, fin thickness, number of fins and tilt angle. The experimental work was carried out under real environmental conditions at optimum design parameters of the passive fin heat sinks. At average solar irradiance of 1000 W/m2 and ambient temperature of 33 °C, results showed that, passive cooling with lapping fins demonstrate the best performance with mean PV module temperature 24.6 °C lower than the reference PV module, and hence, the achieved electrical efficiency and power output are as high as 10.68% and 37.1 W, respectively. Finally, Life Cycle Cost Analysis (LCCA) was conducted. The analysis showed that the payback period for PV module with longitudinal, lapping fins and bare PV module are 4.2, 5 and 8.4 years respectively. Therefore, PV module cooling using passive technique particularly with lapping fins design is concluded as the preferred option.

这项研究旨在通过使用新型无源散热片散热器的两种不同设计，即搭接和纵向，来实验研究集中式光伏组件的无源冷却性能。实验设计（DOE）方法技术用于根据鳍高度，鳍间距，鳍厚度，鳍数量和倾斜角度确定最佳设计参数。实验工作是在实际环境条件下以无源翅片散热器的最佳设计参数进行的。结果表明，在平均太阳辐照度为1000 W / m2且环境温度为33°C的情况下，使用搭接散热片的被动冷却表现出最佳性能，平均光伏模块温度比参考光伏模块低24.6°C，因此，电气效率和功率输出高达10.68％和37.1 W，分别。最后，进行了生命周期成本分析（LCCA）。分析表明，带有纵向鳍片，搭接鳍片和裸露光伏组件的光伏组件的投资回收期分别为4.2年，5年和8.4年。因此，采用被动技术（尤其是搭接散热片设计）的光伏组件冷却被认为是首选方案。