Graphene Nanoplatelets Suspended in Different Basefluids Based Solar Collector: An Experimental and Analytical Study

A flat plate solar collector (FPSC) was analytically studied, with functionalized graphene nanoplatelets (f-GNPs) as its working fluid. Four samples (wt % nanofluids) were prepared in different base fluids such ethylene glycol (EG), distilled water (DW):EG (70:30), and DW:EG (50:50). Experimental results (via DW) used to verify the effectiveness of analytical model. Some operating conditions taken into account this research, including temperatures, power, mass flow rates. techniques elucidate modified nanofluids’ physicochemical properties, particle sizes, stability, morphology, involving electron microscopes (EMs), UV–VIS, X-ray techniques. Differential scanning calorimetry (DSC) thermogravimetric analysis (TGA) applied test thermal analysis. The findings confirmed that use f-GNPs nanofluids enhanced performance FPSC relative for all testing conditions. maximum enhancement collector’s at a rate 1.5 kg min?1 weight concentration 0.1 wt %, increased 12.69%, 12.60%, 12.62% case EG, (50:50), respectively. also an improvement both heat gain (FR(??)) loss (FRUL) coefficients nanofluid.