Research Information System
Thesis Type: Postgraduate
Institution Of The Thesis: Gazi University, Fen Bilimleri Enstitüsü, Turkey
Approval Date: 2021
Thesis Language: Turkish
Student: İrem KARAASLAN
Supervisor: TAYFUN MENLİK
Open Archive Collection: AVESIS Open Access Collection
Abstract:Photovoltaic thermal systems (PV/T) attract more attention than other solar energy systems with their ability to produce both electrical energy and thermal energy simultaneously with the solar cell and collector. In the last decade, researchers have used nanofluids including a single type of nanoparticle as the working fluid instead of conventional fluids to enhance the electrical and thermal efficiency in these systems. Although nanofluids have some negative effects, promising results are presented for heat transfer mechanisms. Recently, based on these results, hybrid nanofluids containing more than one type of nanoparticle have been used. With the application of hybrid nanofluids, it is aimed to provide a better combination of advantages and disadvantages offered by different nanoparticles individually due to synergistic effects. In this thesis, the effect of using a novel nanofluid, CuO+Fe/water hybrid nanofluid, on performance criteria compared to base fluid and single nanofluid was investigated by using the Computational Fluid Dynamics numerical analysis method. With the help of ANSYS Fluent 18.2 software, % 2 (50:50) volume concentration of CuO + Fe/water, CuO/water and water was analyzed under 1000 W/m2 constant heat flux and in the range of 0,02-0,08 m/s flow rate. The results showed that the use of hybrid nanofluid provides positive effects in terms of the electrical and thermal efficiency of the system, but also increases the pressure drop compared to the base fluid and CuO/water.