Naslov
Thermal management of novel photovoltaic thermal collector: An experimental investigation

Autori
Jurčević, Mišo ; Nižetić, Sandro ; Čoko, Duje ; Arici, Muslum ; Giama, Efrossini ; Papadopoulos, Agis

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Skup
25th Conference on Process Integration for Energy Saving and Pollution Reduction - PRES'22

Mjesto i datum
Bol, Hrvatska, 05.09.2022. - 08.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
photovoltaic thermal collector, thermal management, lard, experimental

Sažetak
The working temperature of the photovoltaic panel (PV) represents a key influential parameter of the system due to temperature degradation of electrical efficiency. To increase the overall efficiency of the photovoltaic system, it is necessary to make better use of the inevitable waste heat. The experimental research focused on the temperature distribution of two identical PV panels in Mediterranean climate conditions, with one panel being the referent and the other incorporating a passive/active cooling system, i.e. photovoltaic-thermal (PVT) collector. Separate water-cooled containers filled with organic phase change material (lard) were added to the back of the commercially available photovoltaic panel to create a photovoltaic- thermal collector. Temperatures on the surfaces of both panels were continuously monitored depending on insolation whereby a smart control system was implemented in the PVT collector to maximize both electric and thermal output. The measurement results revealed the effectiveness of lard in thermal management systems, considering that the surfaces of the PVT collector during the peak heat load were always colder than the surfaces of the referent PV panel, i.e. up to 5.1 °C. For the considered period of 10 days, the electrical efficiency of the novel PVT collector was 3.2 % higher than the conventional PV panel, and also an additional 45, 208.7 Wh of useful heat was generated. The collected experimental data combined with the numerical approach is necessary for the iterative improvement of the smart control system, i.e. fine-tuning the active component of the PVT collector. The results of the experimental research provide a benchmark for the numerical model and consequently the optimization of this novel PVT concept.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA