MODELING OF A SOLAR PHOTOVOLTAIC WATER PUMPING SYSTEM UNDER THE INFLUENCE OF PANEL COOLING
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Publication Details
Author list: Chinathambi G, Murugesan M, Palanisamy C, Munirajan S, Bhero S
Publisher: VINCA Institute of Nuclear Sciences
Place: BELGRADE
Publication year: 2017
Journal acronym: THERM SCI
Volume number: 21
Start page: S399
End page: S410
ISSN: 0354-9836
Languages: English-Great Britain (EN-GB)
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Abstract
In this paper, the performance of a solar photovoltaic water pumping system was improved by maintaining the cell temperature in the range between 30 degrees C and 40 degrees C. Experiments have been conducted on a laboratory experimental set-up installed with 6.4 m(2) solar panel (by providing air cooling either on the top surface or over the beneath surface of the panel) to operate a centrifugal pump with a rated capacity of 0.5 HP. The performance characteristics of the photovoltaic panel (such as, cell temperature, photovoltaic panel output, and photovoltaic efficiency), pump performance characteristics (such as pump efficiency and discharge), and system performance characteristics are observed with reference to solar irradiation, ambient temperature and wind velocity. A thermal model has been developed to predict the variations of photovoltaic cell temperature based on the measured glass and tedlar temperatures. The influences of cell temperature and solar irradiation on the performance of the system are described. The results concluded that cooling of photovoltaic panel on beneath surface has maintained the cell temperature in the range between 30 degrees C and 40 degrees C and improved the overall efficiency by about 1.8% when compared to the system without panel cooling.
Keywords
air cooling, modeling, photovoltaic assisted water pumping systems
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