Investigation of power values of PV rooftop systems based on heat gain reduction
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Author list: Chenvidhya T., Seapan M., Parinya P., Wiengmoon B., Chenvidhya D., Songprakorp R., Limsakul C., Sangpongsanont Y., Tannil N.
Publisher: Society of Photo-optical Instrumentation Engineers
Publication year: 2015
Volume number: 9563
ISBN: 9781628417296
ISSN: 0277-786X
eISSN: 1996-756X
Languages: English-Great Britain (EN-GB)
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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 Newtona€™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. © 2015 COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Keywords
Heat gain, Power value, PV rooftop, Utility losses
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