نوع مقاله : مقاله پژوهشی
نویسندگان
1 عضو هیئت علمی دانشگاه آزاد اسلامی واحد تهران جنوب
2 دانشجوی دکتری، گروه مهندسی مکانیک، دانشگاه آزاد اسلامی واحد تهران جنوب، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
It is the aim of this paper is to compare the electrical and thermal performance of different designs of hybrid photovoltaic - thermal (PV/T) collectors. The main advantage of photovoltaic - thermal collectors in comparison to common photovoltaic modules is decreased cell temperature and associated increase in their electrical efficiency. In addition, the combination of photovoltaic module and solar thermal collector makes it possible to produce both heat and electricity in a single device and reduces the area required for collector and module installation. In this research, electrical and thermal efficiency of different designs of photovoltaic - thermal collectors are investigated. The heat transfer fluid considered for heat dissipation is water. A theoretical analysis of eight types of different photovoltaic - thermal collectors, including sheet and tube with spiral (round section) and parallel tube (round, square and rectangular) designs was implemented based on thermal modeling. These include collectors with different flow path and different cross section geometries. According to the results, sheet and tube design with a round channel and rectangular channel cross section have minimum and maximum thermal and total efficiency, respectivley. Also, PV/T glass cover reduces the electrical efficiency and increases the thermal efficiency and total thermal energy.
کلیدواژهها [English]
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