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Author Abdelhakim, Lotfi
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ COOLING SYSTEMS ♦ DISTRIBUTION ♦ EFFICIENCY ♦ FILTERS ♦ FLOW RATE ♦ HEAT ♦ HEAT TRANSFER ♦ LIFETIME ♦ PANELS ♦ PHOTOVOLTAIC EFFECT ♦ SIMULATION ♦ SOLAR CELLS ♦ SOLAR RADIATION ♦ SURFACES ♦ TEMPERATURE DISTRIBUTION ♦ THREE-DIMENSIONAL CALCULATIONS ♦ TRANSMISSION ♦ VISIBLE SPECTRA ♦ WATER
Abstract Photovoltaic cells are devices that convert solar radiation directly into electricity. However, solar radiation increases the photovoltaic cells temperature [1] [2]. The temperature has an influence on the degradation of the cell efficiency and the lifetime of a PV cell. This work reports on a water cooling technique for photovoltaic panel, whereby the cooling system was placed at the front surface of the cells to dissipate excess heat away and to block unwanted radiation. By using water as a cooling medium for the photovoltaic solar cells, the overheating of closed panel is greatly reduced without prejudicing luminosity. The water also acts as a filter to remove a portion of solar spectrum in the infrared band but allows transmission of the visible spectrum most useful for the PV operation. To improve the cooling system efficiency and electrical efficiency, uniform flow rate among the cooling system is required to ensure uniform distribution of the operating temperature of the PV cells. The aims of this study are to develop a 3D thermal model to simulate the cooling and heat transfer in Photovoltaic panel and to recommend a cooling technique for the PV panel. The velocity, pressure and temperature distribution of the three-dimensional flow across the cooling block were determined using the commercial package, Fluent. The second objective of this work is to study the influence of the geometrical dimensions of the panel, water mass flow rate and water inlet temperature on the flow distribution and the solar panel temperature. The results obtained by the model are compared with experimental results from testing the prototype of the cooling device.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-06-08
Publisher Place United States
Volume Number 1738
Issue Number 1


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