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首页> 外文期刊>Heat transfer >Experimental performance of cooling photovoltaic panels using geothermal energy in an arid climate
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Experimental performance of cooling photovoltaic panels using geothermal energy in an arid climate

机译：冷却光伏面板在干旱气候中使用地热能的实验性能

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In this study, an experimental prototype was built to examine the use of an underground water tank as a heat exchange medium with the soil to reduce photovoltaic (PV) panel operation temperatures and simultaneously improve PV efficiency. Three PV systems were evaluated: a benchmark PV panel without cooling (panel A); a PV panel with water spray cooling (panel B); and a PV panel with evaporative cooling (panel C). The cooling techniques in modules (B) and (C) were used to investigate the effects of underground water on the performance of PV panels in arid conditions. Four cases were devised as follows: spray panel back cooling (Ⅰ), spray front and back cooling (Ⅱ), spray front and back cooling using an Arduino controller (Ⅲ), and repeating case Ⅲ with different water flow rates (Ⅳ). Readings were taken from 9:00 am to 4:00 pm from May to August. The experimental results showed that the use of underground water spray cooling led to reductions in the temperature of PV panel B, 14°C, 17.6°C, 18.8°C, and 22.7°C for cases Ⅰ, Ⅱ, Ⅲ, and Ⅳ, respectively, when compared with the uncooled panel, and efficiency improved by 3.5%, 4.8%, 18%, and 23.1%, respectively.
机译：在本研究中，建立了一种实验原型，以检查地下水箱作为具有土壤的热交换介质的使用，以减少光伏（PV）面板操作温度，同时提高光伏效率。评估了三种PV系统：没有冷却的基准PV面板（面板A）;具有喷水冷却的光伏面板（面板B）;和具有蒸发冷却（面板C）的光伏面板。模块（b）和（c）中的冷却技术用于研究地下水对干旱条件下PV面板性能的影响。设计如下，如下设计：喷雾面板背部冷却（Ⅰ），喷雾前后冷却（Ⅱ），使用Arduino控制器（Ⅲ）喷雾前后冷却，并用不同水流速率（Ⅵ）重复案例Ⅲ。从5月至8月从5月上午9点到下午4:00读数。实验结果表明，使用地下水喷雾冷却导致PV面板B，14℃，17.6℃，18.8°C和22.7°C的温度降低，Ⅰ，Ⅱ，Ⅲ，以及Ⅳ，分别与未冷却面板相比，效率分别提高了3.5％，4.8％，18％和23.1％。

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