Enhancing the performance of photovoltaic panels by water cooling

The objective of the research is to minimize the amount of water and electrical energy needed for cooling of the solar panels, especially in hot arid regions, e.g., desert areas in Egypt. A cooling system has been developed based on water spraying of PV panels. A mathematical model has been used to...

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Main Authors: K.A. Moharram, M.S. Abd-Elhady, H.A. Kandil, H. El-Sherif
Format: Article
Language:English
Published: Elsevier 2013-12-01
Series:Ain Shams Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090447913000403
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author K.A. Moharram
M.S. Abd-Elhady
H.A. Kandil
H. El-Sherif
author_facet K.A. Moharram
M.S. Abd-Elhady
H.A. Kandil
H. El-Sherif
author_sort K.A. Moharram
collection DOAJ
description The objective of the research is to minimize the amount of water and electrical energy needed for cooling of the solar panels, especially in hot arid regions, e.g., desert areas in Egypt. A cooling system has been developed based on water spraying of PV panels. A mathematical model has been used to determine when to start cooling of the PV panels as the temperature of the panels reaches the maximum allowable temperature (MAT). A cooling model has been developed to determine how long it takes to cool down the PV panels to its normal operating temperature, i.e., 35 °C, based on the proposed cooling system. Both models, the heating rate model and the cooling rate model, are validated experimentally. Based on the heating and cooling rate models, it is found that the PV panels yield the highest output energy if cooling of the panels starts when the temperature of the PV panels reaches a maximum allowable temperature (MAT) of 45 °C. The MAT is a compromise temperature between the output energy from the PV panels and the energy needed for cooling.
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spelling doaj.art-93458cd3f7fc4c8f8161c9a3721ba41d2022-12-21T18:21:06ZengElsevierAin Shams Engineering Journal2090-44792013-12-014486987710.1016/j.asej.2013.03.005Enhancing the performance of photovoltaic panels by water coolingK.A. Moharram0M.S. Abd-Elhady1H.A. Kandil2H. El-Sherif3Department of Mechatronics, Faculty of Engineering and Material Sciences, German University in Cairo (GUC), EgyptDepartment of Mechanical Engineering, Beni-Suief University, Beni-Suief, EgyptDepartment of Mechatronics, Faculty of Engineering and Material Sciences, German University in Cairo (GUC), EgyptDepartment of Mechatronics, Faculty of Engineering and Material Sciences, German University in Cairo (GUC), EgyptThe objective of the research is to minimize the amount of water and electrical energy needed for cooling of the solar panels, especially in hot arid regions, e.g., desert areas in Egypt. A cooling system has been developed based on water spraying of PV panels. A mathematical model has been used to determine when to start cooling of the PV panels as the temperature of the panels reaches the maximum allowable temperature (MAT). A cooling model has been developed to determine how long it takes to cool down the PV panels to its normal operating temperature, i.e., 35 °C, based on the proposed cooling system. Both models, the heating rate model and the cooling rate model, are validated experimentally. Based on the heating and cooling rate models, it is found that the PV panels yield the highest output energy if cooling of the panels starts when the temperature of the PV panels reaches a maximum allowable temperature (MAT) of 45 °C. The MAT is a compromise temperature between the output energy from the PV panels and the energy needed for cooling.http://www.sciencedirect.com/science/article/pii/S2090447913000403PhotovoltaicCoolingOverheating
spellingShingle K.A. Moharram
M.S. Abd-Elhady
H.A. Kandil
H. El-Sherif
Enhancing the performance of photovoltaic panels by water cooling
Ain Shams Engineering Journal
Photovoltaic
Cooling
Overheating
title Enhancing the performance of photovoltaic panels by water cooling
title_full Enhancing the performance of photovoltaic panels by water cooling
title_fullStr Enhancing the performance of photovoltaic panels by water cooling
title_full_unstemmed Enhancing the performance of photovoltaic panels by water cooling
title_short Enhancing the performance of photovoltaic panels by water cooling
title_sort enhancing the performance of photovoltaic panels by water cooling
topic Photovoltaic
Cooling
Overheating
url http://www.sciencedirect.com/science/article/pii/S2090447913000403
work_keys_str_mv AT kamoharram enhancingtheperformanceofphotovoltaicpanelsbywatercooling
AT msabdelhady enhancingtheperformanceofphotovoltaicpanelsbywatercooling
AT hakandil enhancingtheperformanceofphotovoltaicpanelsbywatercooling
AT helsherif enhancingtheperformanceofphotovoltaicpanelsbywatercooling