Author(s):
1. Stefan Djordjevic, University of Niš, Faculty of Sciences and Mathematics, Department of Physics, Višegradska 33, 1800, Serbia
2. Lana Pantic, University of Niš, Faculty of Sciences and Mathematics, Department of Physics, Višegradska 33, 1800, Serbia
3. Marko Krstic, University of Niš, Faculty of Sciences and Mathematics, Department of Physics, Višegradska 33, 1800, Serbia
4. Ivana Radonjić Mitić, University of Niš, Faculty of Sciences and Mathematics, Department of Physics, Višegradska 33, Niš, Serbia
5. Tomislav Pavlović, University of Nis, Faculty of Sciences and Mathematics, , Serbia
6. Dragoljub Mirjanić, Akademija nauka i umjetnosti Republike Srpske, Republic of Srpska, Bosnia and Herzegovina
7. Andjelina Maric Stankovic, University of Niš, Faculty of Sciences and Mathematics, Department of Physics, Višegradska 33, 1800, Serbia

Abstract:
The total solar energy that falls on the photovoltaic (PV) module is partly converted into electricity, while a greater part is spent on temperature increase of the PV module. PV module efficiency drops with the rise in temperature, with a magnitude of approximately 0.5 %/°C. The aim of this paper is to experimentally determine the PV module output power changes during the cooling process with alcohol. In the experiment, PV modules were positioned one beside the other, and the front surface of the module was cooled with 96% ethyl alcohol. Alcohol was chosen for its innate aptitude in the process of evaporation. Presented measurement data are for the period between 10:45 and 11:05, which corresponds to solar noon and the time of maximum solar irradiation intensity. After all cycles of active cooling, the temperature of the back side of the cooled PV module was 36.8 °C, while the temperature of the uncooled module was 59.4 °C. The biggest difference in power between the cooled and uncooled module was 4.9%. On average, the efficiency of the PV module increased by 3.2%.

Key words:
The total solar energy that falls on the photovoltaic (PV) module is partly converted into electricity,while a greater part is spent on temperature increase of the PV module. PV module efficiency drops with the rise in temperature,with a magnitude of ap

Thematic field:
SYMPOSIUM A - Science of matter, condensed matter and physics of solid states

Date of abstract submission:
10.08.2023.

Conference:
Contemporary Materials 2023 - Savremeni materijali

Abstract