Experimental study on using two types of square tube absorbers and distilled water coolant in a photovoltaic thermal collector (pv/t)
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Tarih
2021
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info:eu-repo/semantics/openAccess
Özet
Several recently conducted studies have focused on different technologies that have been tested for \rimproving photovoltaic (PV) modules’ performances and increasing the performances of solar systems. \rOne of the most important of these techniques is the development of a heat exchanger design. According \rto extensive literature reviews, most photovoltaic panels use circular tubes, through which, water flows \rto carry out the cooling process. In the current experimental study, a different design has been applied, \rand square tubes have been used for increasing the panel-cooling tubes’ contact area. The hybrid \rphotovoltaic thermal (PV/T) module’s performance has been evaluated and compared using a squareshaped copper tube in two types of heat exchangers, serpentine and head & riser (PV/TS and PV/TH&R). At \rflow rates 0.5 and 1 L/m, outdoor experiments were conducted during August 2019 in Karabük city, \rTurkey. Results show that in case of PV/T modules, the overall efficiency value was maximum 48.6% at \r0.5 L/m while its average value was 59.4% at 1 L/m for serpentine heat exchanger. The mentioned values \rwere 41.7% at 0.5 L/m and 54.7% at 1 L/m for head & riser heat exchanger, respectively. Furthermore, \rfrom the perspective of energy, the serpentine heat exchanger design with flow rate 1L/m showed better \rphotovoltaic energy conversion in comparison with other designs and flow rates.
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Kaynak
International journal of energy studies (Online)
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Cilt
6
Sayı
2
