The Influence of Al2O3- ZnO-H2O Nanofluid on the Thermodynamic Performance of Photovoltaic- Thermal Hybrid Solar Collector System
Received Date: Feb 09, 2018 / Accepted Date: Feb 19, 2018 / Published Date: Feb 23, 2018
A thermodynamic analysis was conducted after testing two working fluids to particularly assess the effect of Nanofluid as heat transfer agent on improving thermal, electrical, and exergetic efficiencies of thermally biased solar photovoltaic/thermal (PV/T) hybrid collector system under State of Qatar climate, using experimentally and computationally obtained data. The investigated two fluids were water, and Al2O3-ZnO-H2O Nanofluid mixed with Ethylene Glycol as surfactant. Mass fractions of Nanoparticles were 0.05 wt.% Al2O3 with particle size of 5 nm and 0.05 wt.% ZnO with particles size of 10-30 nm. The results showed that in comparison between water as absorption medium and the mentioned Nanofluid, an increase in thermal and hence total efficiency of the system was recorded for the latter absorption medium scenario, despite considering concentrations of the Nanoparticles relatively low. A very general trend of dramatic decrease in the positive effect of Nanofluid in consistency with the ambient temperature increase was also observed after fitting the data to segments of straight lines. For 0.05 wt.% mass fraction of Nanoparticles the averaged increment in total efficiency was 4.1%, and in total useable energy (exergy) efficiency was 4.6%.
Keywords: Solar hybrid collector system; Nano fluidic; Photovoltaic
Citation: Younis A, Onsa M, Alhorr Y, Elsarrag E (2018) The Influence of Al2O3-ZnO-H2O Nanofluid on the Thermodynamic Performance of Photovoltaic- Thermal Hybrid Solar Collector System. Innov Ener Res 7: 187. Doi: 10.4172/2576-1463.1000187
Copyright: © 2018 Younis A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.