20.500.12556/RUL-136907 Efficiency and sustainability assessment of evaporative cooling of photovoltaics The cooling of PV has been shown to increase electricity production. Among passive techniques, evaporative cooling has one of the greatest potentials. In this work, the efficiency and sustainability of this technique have been investigated for various climatic conditions. In-situ experiments were conducted to develop parametric models for PV cell temperatures and back surface convective heat transfer coefficient. Experiments have revealed an up to 20.1 °C lower peak PV temperature and up to 9.6% increased electric power. Year-round analysis was made for eight cities to determine the required roof size to capture precipitation and the volume of rainwater storage for sustainable evaporative cooling. The study shows that sustainable PV evaporative cooling is possible in cities with temperate and continental climates, where 1–3 m$^2$ of roof area and 50–150 l of rainwater storage are needed for 1 m$^2$ of PV. The annual electricity production can increase by 5.9–9.4 kWh/m$^2$a, which is a 3.6–4.6% increase. In the semi-arid climate of Lampedusa, a roof above 4 m$^2$ and a storage of up to 500 l per m$^2$ of PV are required. In the desert climate of Almeria and Athens, sustainable evaporative cooling is not feasible. evaporative cooling PV cells in-situ experiments cooling water demand rainwater storage optimization hlapilno hlajenje fotonapetostne celice meritve v naravnem okolju voda za hlajenje zalogovnik deževnice optimizacija true false true Angleški jezik Slovenski jezik Članek v reviji 2022-05-24 14:03:43 2022-05-24 14:03:44 2025-03-04 15:04:46 0000-00-00 00:00:00 2022 0 0 12 str. pt. A, art. 124260 Vol. 254 Sep. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.9 0360-5442 10.1016/j.energy.2022.124260 108992259 Zizak_..._-_Efficiency_and_sustainability_assessment_of_evaporative_cooling_of_photovoltaics.pdf Zizak_..._-_Efficiency_and_sustainability_assessment_of_evaporative_cooling_of_photovoltaics.pdf 1 6C2125C13DF9CE3AB6CFB65A4948F8CA e10634917ddd1f6599bef0801da4cf1f2e25521f137f36a6d33b639b5b96e3f6 eecbc2a5-db59-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156711 https://www.sciencedirect.com/science/article/pii/S036054422201163X 1 6e05f6df-db59-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156710 Fakulteta za strojništvo 0 0 0