Yazar "Arcaklioglu, E." seçeneğine göre listele

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    Comparison of different cooling options for photovoltaic applications
    (Institute of Electrical and Electronics Engineers Inc., 2018) Ökkul, F.B.; Kayabasi, E.; Çelik, E.; Kurt, H.; Arcaklioglu, E.
    A temperature increase plays a negative role on photovoltaic (PV) panel conversion efficiency by increasing recombination rates. In this study, air- and water-cooling options were simulated to investigate the efficiency behavior of a specific PV panel made of heterojunction Silicon (Si) whilst PV panel was cooling in operation by using ANSYS-FLUENT. For air cooling, two different options were suggested: air cooling with four different flow speeds and air cooling with a heat sink addition with three different flow speeds. As for water-cooling three flowrates were considered. Temperature distributions of PV panels for the all cooling options were demonstrated as a function of flow velocity of air and flowrate of water for different cooling conditions and compared with each other. The influence of temperature difference on panel conversion efficiency were also discussed. As a result, heat sink with a proper flow arrangement cooling option showed the best performance in terms of minimum material, minimum cost and minimum complexity with the 42 °C, 38.4 °C, 35.9°C average surface temperatures and 20.9%, 21.3%, 21.5% panel efficiencies. © 2018 IEEE.
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    Investigating the effects of cooling options on photovoltaic panel efficiency: State of the art and future plan
    (Institute of Electrical and Electronics Engineers Inc., 2018) Özkul, F.B.; Kayabasi, E.; Çelik, E.; Kurt, H.; Arcaklioglu, E.
    Currently, cooling of photovoltaic (PV) panels, a significant issue due the negative effect on panel efficiency, is subjected to intensive researches. For this purpose, numerous researches on cooling methods are performed to keep the panel efficiencies around the design values. In this study, a comprehensive literature review was presented to give the status of the technological improvement in cooling options. In addition, strong and weak aspects of the studies were discussed, and advantageous methods were emphasized for the further application of PV panels. Finally, future perspective of PV panel cooling studies was explored with proper cooling options in lower operating temperatures for higher operation efficiencies. © 2018 IEEE.