Solar water-pump thermal analysis utilizing copper–gold/engine oil hybrid nanofluid flowing in parabolic trough solar collector: Thermal case study

Solar energy is the major thermal energy source from the sun, and it is widely employed in technologies such as solar water pumps and photovoltaic cells. The examination of solar radiation technology is required to properly use the performance of solar water pumps (SWP). The utilization of hybrid nanofluid with parabolic trough surface collector (PTSC) within SWP has been developed to evaluate heat transmission efficacy. Solar radiation has been recognized as the cause of heat. The thermal transferal performance of SWP is investigated in the presence of numerous influences such as viscous dissipation, heat source, and thermal radiation. The entropy analysis for Oldroyd-B fluid has also been evaluated. The well-known Keller-box technique was used to solve the modeled energy and momentum equations. Various characteristics, such as speed, shear stress and temperature, surface drag, and Nusselt numbers, are given in brief terms in figures and tables. In terms of thermal radiation and thermal conductivity on temperature, the efficiency of water pumps in heat transmission improves. In comparison to basic nanofluids, hybrid nanofluids provide the greatest heat transfer. The thermal efficiency of Au–Cu/EO is increased than Cu-EO, between 22.44% and 35.01%.