不同对流冷却流量下纳米流体光伏集热器性能分析

Q3 Engineering

Open Civil Engineering Journal Pub Date : 2023-08-01 DOI:10.28991/cej-2023-09-08-08

Z. Arifin, Nuha Khairunisa, B. Kristiawan, S. D. Prasetyo, Watuhumalang Bhre Bangun

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引用次数: 0

摘要

通过光伏(PV)板利用太阳能作为替代能源具有极好的潜力。然而，高工作温度导致工作效率降低的问题需要解决。本研究旨在分析冷却系统的发展，以提高光伏板的电效率和热效率。该研究包括通过在主动冷却方法中加入0.5 vol%的水来分析TiO2、Al2O3和ZnO工质的使用情况。冷却系统包括一个矩形螺旋和PV面板后面的矩形管。利用太阳模拟器模拟太阳辐射强度的变化，分析不同工况下冷却系统的性能。结果表明，采用纳米流体结构的热交换器在ZnO纳米流体中使面板温度降低了14℃，电效率提高了4.7%。在矩形螺旋结构下，ZnO纳米流体将面板温度从60℃降低到45℃，将Isc值从2.16A提高到2.9A，将Voc值从21.5V提高到23V。这导致面板的最大功率增加到53W。Doi: 10.28991/CEJ-2023-09-08-08全文:PDF

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Performance Analysis of Nanofluid-based Photovoltaic Thermal Collector with Different Convection Cooling Flow

Using solar energy through photovoltaic (PV) panels has excellent potential as an alternative energy source. However, the problem of high operating temperatures causing a reduction in work efficiency needs to be addressed. This study aimed to analyze the development of a cooling system to increase PV panels' electrical and thermal efficiency. The research involved analyzing the use of TiO2, Al2O3, and ZnO working fluids by adding 0.5 vol% to water in an active cooling method. The cooling system involved a rectangular spiral and a rectangular tube behind the PV panel. A solar simulator simulated solar radiation with intensity variations to analyze the cooling system's performance in different working conditions. The results showed that the heat exchanger with a nanofluid configuration reduced the panel temperature by 14 oC, which increased the electrical efficiency by up to 4.7% in the ZnO nanofluid. In the rectangular spiral configuration, the ZnO nanofluid reduced the panel temperature from 60 to 45 oC, increasing the Isc value from 2.16A to 2.9A and the Voc value from 21.5V to 23V. This resulted in a maximum power increase of the panel to 53W. Doi: 10.28991/CEJ-2023-09-08-08 Full Text: PDF

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来源期刊

Open Civil Engineering Journal Engineering-Civil and Structural Engineering

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： The Open Civil Engineering Journal is an Open Access online journal which publishes research, reviews/mini-reviews, letter articles and guest edited single topic issues in all areas of civil engineering. The Open Civil Engineering Journal, a peer-reviewed journal, is an important and reliable source of current information on developments in civil engineering. The topics covered in the journal include (but not limited to) concrete structures, construction materials, structural mechanics, soil mechanics, foundation engineering, offshore geotechnics, water resources, hydraulics, horology, coastal engineering, river engineering, ocean modeling, fluid-solid-structure interactions, offshore engineering, marine structures, constructional management and other civil engineering relevant areas.