Effect of Some Parameters Related to the PV Cooling with Impingement Jets: a Numerical Investigation

Q2 Agricultural and Biological Sciences International Review of Mechanical Engineering Pub Date : 2023-07-31 DOI:10.15866/ireme.v17i7.22921

Mohamed Ali Essa

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Abstract

Photovoltaic panels are considered as one of the most used renewable energy conversion systems from solar energy for its compactness and ease of installation and. One of the big problems facing the efficiency of such systems is its deterioration at high temperatures. This research presents a perpendicular flow cooling system for the PV module as photovoltaic- thermal system. The thermal module under consideration uses compact design and efficient cool. The fluid used is tap water with five flow rates in the range between 0.012 and 0.106 LPM. The system has been tested under radiation intensities ranging from 400 to 1000 W/m2. The cooling jets have been distributed in structured and unstructured schemes. It has been found out that the enhancement in the electrical efficiency reaches 0.62% at the maximum flow rate and maximum radiation intensity, with a decrease of the PV temperature of 11.33 °C. The jet distribution has not affected the value of the electrical efficiency as it gives the same average panel’s temperature. The thermal efficiency reaches 44.9% with the maximum flow rate and maximum irradiance power at the unstructured jet distribution. The maximum overall efficiency has been achieved at the same conditions of the maximum thermal efficiency with a value of 58.83%.

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冲击射流对PV冷却相关参数影响的数值研究

光伏板以其结构紧凑、易于安装和使用而被认为是应用最广泛的太阳能可再生能源转换系统之一。这种系统的效率面临的一个大问题是它在高温下的劣化。本文提出了一种垂直流冷却系统作为光伏热系统。正在考虑的热模块采用紧凑的设计和高效的冷却。所使用的流体为自来水，流量范围为0.012至0.106 LPM。该系统已在400至1000 W/m2的辐射强度范围内进行了测试。冷却射流以结构化和非结构化两种形式分布。结果表明，在最大流量和最大辐射强度下，光电效率提高了0.62%，而PV温度降低了11.33℃。射流分布没有影响电效率的值，因为它给出了相同的平均面板温度。在非结构射流分布下，在最大流量和最大辐照功率下热效率达到44.9%。在最大热效率相同的条件下，总效率达到最大，为58.83%。

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来源期刊

International Review of Mechanical Engineering Engineering-Mechanical Engineering

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： The International Review of Mechanical Engineering (IREME) is a peer-reviewed journal that publishes original theoretical and applied papers on all fields of mechanics. The topics to be covered include, but are not limited to: kinematics and dynamics of rigid bodies, vehicle system dynamics, theory of machines and mechanisms, vibration and balancing of machine parts, stability of mechanical systems, computational mechanics, advanced materials and mechanics of materials and structures, plasticity, hydromechanics, aerodynamics, aeroelasticity, biomechanics, geomechanics, thermodynamics, heat transfer, refrigeration, fluid mechanics, energy conversion and management, micromechanics, nanomechanics, controlled mechanical systems, robotics, mechatronics, combustion theory and modelling, turbomachinery, manufacturing processes, new technology processes, non-destructive tests and evaluation, new and important applications and trends.