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A review on the approaches employed for cooling PV cells
Solar Energy ( IF 6.0 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.solener.2020.08.083
Akbar Maleki , Arman Haghighi , Mamdouh El Haj Assad , Ibrahim Mahariq , Mohammad Alhuyi Nazari

Abstract Solar energy has several advantages compared to other types of renewable sources of energy such as easy accessibility and superior predictability. This source of energy is utilized for several purposes including heating, desalination and power generation. Generally, PV panels are employed for direct electricity generation. On the other hand the harvested solar thermal energy can be used to generate power indirectly by employing a medium such as a solar tower. PV panels are preferred for small-scale and off-grid electricity production purposes and their performance depends on various factors such as their building material, solar irradiation and operating temperature. The efficiency of the panels degrade by increasing the temperature. As such, different approaches are suggested to cool the PV panels and enhance their efficiency. The cooling methods are categorized as active and passive. An examples of the active method would be utilizing water flow, while for the passive method a thermal medium such as heat pipes is employed. In this work, the common methods utilized for cooling PV panels are reviewed, analyzed and compared. According to the outcomes of relevant published studies, efficiency enhancement of PV cells rely on several factors including solar irradiation, employed cooling approach, and the operating conditions. Normally, using thermal management approaches for hot climate conditions is more useful due to the corresponding high working temperatures of the PV cells which ultimately reduces their electricity generation capabilities.

中文翻译:

光伏电池冷却方法综述

摘要 与其他类型的可再生能源相比,太阳能具有多种优势,例如易于获取和卓越的可预测性。这种能源有多种用途,包括供暖、海水淡化和发电。通常,光伏板用于直接发电。另一方面,通过使用诸如太阳能塔之类的介质,可以将收集到的太阳能热能用于间接发电。光伏电池板是小规模和离网发电的首选,其性能取决于各种因素,如建筑材料、太阳辐射和工作温度。面板的效率会随着温度的升高而降低。因此,建议采用不同的方法来冷却 PV 面板并提高其效率。冷却方法分为主动式和被动式。主动方法的一个例子是利用水流,而被动方法则使用热介质,例如热管。在这项工作中,对用于冷却光伏电池板的常用方法进行了回顾、分析和比较。根据相关已发表研究的结果,光伏电池的效率提高取决于几个因素,包括太阳辐射、采用的冷却方法和操作条件。通常,由于 PV 电池相应的高工作温度最终会降低其发电能力,因此在炎热气候条件下使用热管理方法更有用。而对于被动方法,则使用热介质,例如热管。在这项工作中,对用于冷却光伏电池板的常用方法进行了回顾、分析和比较。根据相关已发表研究的结果,光伏电池的效率提高取决于几个因素,包括太阳辐射、采用的冷却方法和操作条件。通常,由于光伏电池相应的高工作温度最终会降低其发电能力,因此在炎热气候条件下使用热管理方法更有用。而对于被动方法,则使用热介质,例如热管。在这项工作中,对用于冷却光伏电池板的常用方法进行了回顾、分析和比较。根据相关已发表研究的结果,光伏电池的效率提高取决于几个因素,包括太阳辐射、采用的冷却方法和操作条件。通常,由于 PV 电池相应的高工作温度最终会降低其发电能力,因此在炎热气候条件下使用热管理方法更有用。PV 电池的效率提高取决于几个因素,包括太阳辐射、采用的冷却方法和操作条件。通常,由于 PV 电池相应的高工作温度最终会降低其发电能力,因此在炎热气候条件下使用热管理方法更有用。PV 电池的效率提高取决于几个因素,包括太阳辐射、采用的冷却方法和操作条件。通常,由于 PV 电池相应的高工作温度最终会降低其发电能力,因此在炎热气候条件下使用热管理方法更有用。
更新日期:2020-10-01
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