کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6679960 1428065 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on designed fins-enhanced phase change materials system for thermal management of a novel building integrated concentrating PV
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Investigation on designed fins-enhanced phase change materials system for thermal management of a novel building integrated concentrating PV
چکیده انگلیسی
The solar to electrical conversion efficiency of the silicon based photovoltaics (PV) system decreases with its temperature increase, therefore, the thermal management of PV becomes important to improve PV power generation. In this paper, a designed Phase Change Material (PCM) system is integrated into the rear part of a novel building integrated concentrating PV system to moderate its temperature rise. The heat transfer of the developed concentrating PV/PCM system has been studied experimentally and numerically. A numerical 3D model was developed to predict the temperature distribution of the PCM during the phase change process and the predicted results agreed well with the experimental measurement. It was found that the addition of the PCM system to the concentrating PV system can reduce during the phase change process the solar induced temperature rise by over 20 °C. This can lead to approximate 10% increase in solar to electrical conversion efficiency. Furthermore, numerical simulations have been carried out to optimize the heat transfer within the PCM through installing horizontal and vertical aluminium fins with different thicknesses. It was found out that, both, the horizontal and vertical fins can improve the thermal performance of the PCM system. In addition, the system with vertical fins shows better performance on maintaining the temperature of the PV cells. At a solar irradiation exposure of 670 W/m2 the PCM system, enhanced by vertical fins, can reduce the temperature of the concentrating PV system during the phase change process by 25 °C, when compared to the PV system without PCM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 225, 1 September 2018, Pages 696-709
نویسندگان
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