In this paper, the object is to study numerically the effect of cooling of PV cell using Nanofluids as a coolant. The computational analysis using ANSYS-FLUENT is modeled in order to investigate the effect of using Nanofluids as a coolant for cooling back surface of photovoltaic cells. ANSYS-FLUENT is used in a three dimensional model for the PV cell and its cooling is created with a given boundary conditions, the analysis has been carried out using a single phase flow for different flow rates (80,100,200,300 and 400) ml/min in straight channel and using different concentrations of Boehmite-waterNano fluid (AlOOH-xH_2 O) of( 0.01wt%, 0.1wt%, and 0.5wt %).The Nanofluids cooling performance was assessed from the results obtained for the average surface temperature and electrical output of the PV cell using theoretical temperature dependent power correlation. The results showed that at lower flow rates less than 200 ml/min the power maximum reached a percentage increase of power of 21.87% at a temperature reduction of 21.6 ͦ C and decreases with decreasing flow rate(300 and 400) ml/min the flow turns to be turbulent. The percentage increase of maximum power reached ( 23.4% and 24.6% ) for flow rates respectively at 0.01wt% concentration compared with (22.4% and 22.75 %) for flow rates respectively at 0.1wt % concentration. |
