Analysis and optimization of passive cooling approach for free-standing photovoltaic panel: Introduction of slits (CROSBI ID 271351)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Marinić Kragić, Ivo ; Nižetić, Sandro ; Grubišić Čabo, Filip ; Čoko, Duje
engleski
Analysis and optimization of passive cooling approach for free-standing photovoltaic panel: Introduction of slits
One of the major issues related to market available silicon based photovoltaic (PV) technologies is the performance drop caused by relatively high PV panel operating temperatures. The proper cooling of PV panels can reduce performance degradation and increase the lifetime of convectional PV panels. This paper investigates architecture modifications to market available silicon PV panels with the introduction of slits on the PV panel surface, which enables the passive cooling of PV panels. Two different arrangements of slits were numerically investigated and followed with the optimization approach. A developed numerical model was derived from the referent numerical model that was experimentally validated. For each considered scenario, a detailed flow and thermal analysis was performed which included optimization regarding minimum average PV cell temperatures. The considered slit types differ with slit orientation, i.e. parallel to PV panel tilt-axis (type-A) and perpendicular to PV panel tilt-axis (type-B). In both cases, a detailed analysis and optimization required ~100 CFD simulations to investigate the effects of different slit sizes and all wind directions. Overall, using the considered slit modifications, the average PV cell temperature could be decreased up to 3°C, where effective cooling with the proposed modification is only reasonable for wind speeds up to 5 m/s.
photovoltaics ; numerical analysis ; passive cooling ; renewable energy ; energy conversion efficiency
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Podaci o izdanju
204
2020.
1-11
objavljeno
0196-8904
1879-2227
10.1016/j.enconman.2019.112277
Povezanost rada
Strojarstvo, Temeljne tehničke znanosti