Performance evaluation of concentrating solar photovoltaic and photovoltaic/thermal systems
Performance evaluation of concentrating solar photovoltaic and photovoltaic/thermal systems
复制标题
DOI：
10.1016/j.solener.2013.09.029
复制
发表时间：
2013-12-01
期刊：
影响因子：
6.7
通讯作者：
Bournot, Philippe
中科院分区：
文献类型：
--
作者：
Chaabane, Monia;Charfi, Wael;Bournot, Philippe
太阳辐射的混合转换是太阳能开发中最有前途的技术之一，它允许在光伏/热集热器中同时将太阳光转化为热能和电能。在本研究中，针对突尼斯撒哈拉城市Tozeur的春季气候条件，设计并测试了低聚光光伏（PV）和光伏/热（PVT）系统。该系统基本上是一个非对称复合抛物面光伏聚光器。由于该系统的性能随着太阳能电池温度的升高而恶化，我们建议将其转换为混合动力系统，以提高其电效率并同时回收热能。这些系统运行的比较证实了组合PVT系统电气性能的改进及其可接受的热能生产。然后，开发了一个解释PVT系统的计算流体动力学（CFD）模型，并根据实验结果进行了验证，证明了所开发模型用于识别该系统的数值局限性并预测可能的改进的有效性。(C) 2013 Elsevier Ltd.版权所有。
Hybrid conversion of solar radiation, which allows simultaneous conversion of sunlight into thermal and electrical energy in the photovoltaic/thermal collector, is one of the most promising techniques of solar energy exploitation. In this study, low concentrating photovoltaic (PV) and photovoltaic/thermal (PVT) systems were designed and tested for a given spring climatic condition of the Tunisian Saharan city Tozeur. The system is basically an asymmetric compound parabolic photovoltaic concentrator. As this system's performance deteriorates with rising the solar cells temperature, we proposed to convert it on a hybrid one in order to improve its electrical efficiency and to recuperate simultaneously thermal energy. The comparison of these systems operating confirmed the improvement of the electrical performance of the combined PVT system and its acceptable thermal energy production. A computational fluid dynamics "CFD" model which interprets the PVT system was then developed and validated against the experimental results, proving the validity of the developed model use to identify numerically this system limitations and predict the possible improvements. (C) 2013 Elsevier Ltd. All rights reserved.