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23 September 2015 Investigation of power values of PV rooftop systems based on heat gain reduction
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Abstract
PV rooftop system can generally be installed to produce electricity for the domestic house, office, small enterprise as well as factory. Such a system has direct useful for reducing peak load, meanwhile it also provides shaded area on the roof and hence the heat gain into the building is reduced. This study aims to investigate the shading effect on reduction of heat transfer into the building. The 49 kWp of PV rooftop system has been installed on the deck of the office building located in the middle of Thailand where the latitude of 14 ° above the equator. The estimation of heat gain into the building due to the solar irradiation throughout a day for one year has been carried out, before and after the installation of the PV rooftop system. Then the Newton’s law of cooling is applied to calculate the heat gain. The calculation and the measurement of the heat reduction are compared. Finally, the indirect benefit of the PV rooftop system installed is evaluated in terms of power value.
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© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tanokkorn Chenvidhya, Manit Seapan, Panom Parinya, Buntoon Wiengmoon, Dhirayut Chenvidhya, Roongrojana Songprakorp, Chamnan Limsakul, Yaowanee Sangpongsanont, and Nittaya Tannil "Investigation of power values of PV rooftop systems based on heat gain reduction", Proc. SPIE 9563, Reliability of Photovoltaic Cells, Modules, Components, and Systems VIII, 95630E (23 September 2015); https://doi.org/10.1117/12.2188534
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