Enhance the direct absorption of solar radiation use of MWCNT nanofluids: Experimental analysis Available to Purchase

For the sake of future sustainability, experts are looking at nanotechnology and solar collector technology to enhance the system’s performance. This study improves performance of a flat plate solar collectors filled with nanofluids. Further studies indicated that the high aspect ratio of MWCNTs resulted in a significant increase in thermal conductivity when added to base fluid at a volume concentration of 1%. Increasing particle concentration and working fluid temperature increases thermal conductivity in the studied nanofluids, showing promise for improved thermal conductivity. These higher thermal conductivities outperform those of the base fluid. Various conventional empirical correlations for estimating nanofluid and base liquid specific heat, density, conductivity, and viscosity have been described. [(Ti-Ta)/I] is the optimum value for the collector’s efficiency. One percent nanofluid concentration showed the highest efficiency when various percentages of nanofluid were used in the experimental activity. Additionally, as the proportion of MWCNT particles increased, so did the quantity of heat absorbed by the FPSC.