Experimental investigation of solar thermal performance in PV/T system using SiO2 nanofluid

The usage of clean energy sources, like solar energy, has been becoming more and more important because of the scarcity of fuel reserves and the need to reduce emissions of carbon to prevent global warming. In this context, a nanofluid-based PV/T (photovoltaic thermal) system has been developed to boost solar energy utilization for a variety of residential and industrial applications. The PV/T system pumps the SiO2-nanofluid through the lowest part of the panel, decreasing the temperature of solar panel and increasing the overall amount of electricity produced. Furthermore, the heat generated through the panel can be used to raise the SiO2 nanofluid's temperature. This temperature may be utilized later to heat the building's interior or provide hot water. To evaluate the performance of the PV/T system and the existing PV system under identical weather conditions, comparative measurements were made. The results showed that the PV/T system improves the PV system in terms of power generation efficiency because it utilizes the nanofluid (SiO2) as the working fluid. Additionally, the working (SiO2) nanofluid can be utilized for heating and supply of hot water because the PV/T system raised its temperature at the outlet to about 2-2.5%. SiO2 nanofluid-based PV/T systems may, on average, significantly increase solar power utilization, more than two times that of traditional PV systems. The PV/T system is simple to install in buildings and needs minimal maintenance or repair. As a result, this technology may help to lower carbon emissions and encourage the use of renewable energy in various applications.