Experimental Investigation on Energy and Exergy Analysis of Solar Water Heating System Using Zinc Oxide-Based Nanofluid

The conversion of solar energy into thermal energy using a solar water heating system seems to be a viable technology. Nanofluids are a well-established method of increasing the solar water heater's heat output. Solar thermal collector receiver tube heat transfer enhancers and geometrical characteristics have been analyzed for their impact on energy and exergy efficiency. Assessments of energy and exergy can greatly improve the performance of solar collectors and reduce their irreversibility. This challenge aims to generate full document research on various solar thermal collectors' energy and exergy assessments. Various heat transfer enhancers and geometrical characteristics of the receiver tube of a solar thermal collector have been developed and evaluated for their effects on energy and exergy efficiency. This paper suggests a solar water heating system using zinc oxide-based nanofluid (SWHS-ZO-NF). Distilled water/zinc oxide nanofluids are employed in the recommended solar water heating systems strategy with parabolic trough solar collectors. It is necessary to apply a surfactant to keep the nanoparticles from settling. Although the addition of surfactant increased the nanoparticle's stability in the base fluid, it will harm the nanofluid's thermophysical properties. The system's exergy loss is reduced when the nanofluid's volume concentration increases. The experimental result of the suggested SWHS-ZO-NF improves the energy analysis and exergy analysis, viscosity and thermal conductivity, exergy loss and entropy generation, electrical power and electrical efficiency, and thermal power and thermal efficiency.