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首页> 外文期刊>Energy Conversion & Management >Numerical investigation of the effects of a copper foam filled with phase change materials in a water-cooled photovoltaic/thermal system
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Numerical investigation of the effects of a copper foam filled with phase change materials in a water-cooled photovoltaic/thermal system

机译：水冷光伏/热力系统中填充相变材料的泡沫铜的数值研究

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摘要

The purpose of the present study is to investigate the thermal performance of a photovoltaic/thermal system, integrated with phase change materials in porous medium. For this purpose, a metal foam was employed as porous medium and the performance of five different PCMs, as organic and inorganic, were examined as well. Moreover, the effects of different key parameters such as the mass flow rate, solar irradiance, inlet water temperature and inclination were studied. Finally, the simulation results were compared with a water-cooled photovoltaic/thermal without incorporating PCMs and porous medium, and thermal performance of the three PV/T cases were reported. The highest thermal efficiency of the system was reported as 83% in case of 0.02 kg s(-1) mass flow rate and using Paraffin C22 as the storage material. In addition, the incorporation of porous medium resulted in better temperature distribution, and the porosity of 0.8 was resulted in higher thermal performance. Furthermore, the results were validated with an experimental study, and good agreement was reported. At last, the exergy analysis was applied on the system, and the results showed that the exergy efficiency of the PV/T module with metal foam filled with PCM was 16.7%.
机译：本研究的目的是研究与多孔介质中的相变材料集成在一起的光伏/热系统的热性能。为此，金属泡沫被用作多孔介质，并且还检查了五种不同的PCM（有机和无机）的性能。此外，还研究了质量流量，太阳辐照度，进水温度和倾角等关键参数的影响。最后，将模拟结果与未结合PCM和多孔介质的水冷光伏/热力进行了比较，并报告了3例PV / T情况的热性能。在质量流量为0.02 kg s（-1）且使用石蜡C22作为存储材料的情况下，系统的最高热效率据报道为83％。另外，多孔介质的引入导致更好的温度分布，并且孔隙率0.8导致更高的热性能。此外，通过实验研究验证了结果，并报道了良好的一致性。最后，对系统进行了火用分析，结果表明，PCM填充金属泡沫的PV / T组件的火用效率为16.7％。

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