The impact of utilizing Nanofluids with different metal oxide nanoparticles on heat transfer enhancement and fluid flow for concentration photovoltaic thermal the CPVT collector with Fresnel lens is demonstrated using CFD simulation. With the rising temperature, the electrical efficiency and output power of Multi-Junction Solar Cells drop. Four different types of nanofluids and water are utilized as cooling fluids to disperse heat from Multi-Junction Solar Cells by moving the fluid within the mini-channel beneath the PV Solar Cells. In the current analysis, the Reynolds numbers range from 2000 to 18000. For all forms of cooling fluids, the average Nusselt numbers are augmented by rising Reynolds numbers. The CFD results demonstrated that the Nusselt number of all nanofluid cooling fluids is greater than that of water. When compared to water in a CPVT collector, water-SiO2 nanofluid provides the maximum heat transfer improvement of 12.5%. The silicon dioxide nanoparticles have high thermal conductivity, with the water-SiO2 nanofluid exhibiting the greatest heat transfer increase, followed by water-Al2O3, water-ZnO, water-CuO, and water. The average top surface temperature of the mini-channel for the CPVT collector is reduced by 7% when water-SiO2 nanofluid is used as a cooling fluid and by 3.4% when water is used. The usage of water-SiO2 nanofluid has a significant impact on the heat dissipation with high heat transfer enhancement from Multi-Junction Solar Cells in CPVT collector, leading to an increase in electrical efficiency.

Investigate the vibration of the rectangular plate related to the liquid, normal body frequency and modes shapes of cantilever plate without and with hole and perforate plate with 169 hole in air and contact of the water surface and immersed in water are presented using finite element method via ANSYS15 software. Acoustic model in three dimension domain is considered using APDL program to take the variables. The gotten comes about detailed the 6th plate normal body frequency and mode shapes which are based upon the behavior of the plate. In all cases, there are diminished with in the natural frequency of the fluid–structure framework. It can be concluded from our work that the exactness of the predicted frequencies utilizing our demonstrate is either exceptionally great or at slightest adequate for commonsense purposes.