光伏系统
计算流体力学
热的
材料科学
对流
环境科学
电效率
消散
机械
核工程
功率(物理)
气象学
工程类
热力学
电气工程
物理
作者
Sandro Nižetić,Filip Grubišić Čabo,Ivo Marinić-Kragić,Agis M. Papadopoulos
出处
期刊:Energy
[Elsevier]
日期:2016-09-01
卷期号:111: 211-225
被引量:74
标识
DOI:10.1016/j.energy.2016.05.103
摘要
In this paper, two generic photovoltaic (PV) panels (poly-Si and mono-Si) were experimentally tested in typical Mediterranean climatic conditions. The focus of the applied experimental approach was to examine the effect of backside convective thermal profile and its impact on temperature distribution, i.e. on panel electrical efficiency. Therefore, a series of measurements was made in 2015, from April to July, as well as CFD modeling in order to obtain a detailed analysis of the possible working regimes. According to the obtained experimental and CFD results, the present design of typical PV panels have an unfavorable impact on PV panel electrical efficiency. Namely, typical contemporary panel designs lead to two typical backside convective air temperature profiles which have a direct impact on the effectiveness of natural cooling. As shown in the obtained measurements, the specific convective profiles at the backside of PV panels have a significant influence on the degradation rate of panel electrical efficiency in the estimated amount of 2.5% up to 4.5%. The results of the research discussed in this paper signal the need to provide a possible redesign of the backside surface in conventional PV panels, in order to increase their average efficiency (more efficient backside thermal dissipation).
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