Towards a new MHD non-homogeneous convective nanofluid flow model for simulating a rotating inclined thin layer of sodium alginate-based Iron oxide exposed to incident solar energy

In today's era, energy resources are among the essential objectives for the economic advancement of any developed country. Alternatively, fossil fuels that meet a large percentage of the world's energy needs are becoming increasingly rare and their quantity is dwindling. Solar systems which convert solar radiation into useable heat or electricity now play a vital part in the production of renewable energies. Solar energy, despite its somewhat higher operating costs, is a better alternative energy type when considering environmental safety and substantial uncertainty about future energy provisions. Due to the demand for solar radiation in nowadays era, the features of solar radiation towards the heat transfer of three-dimensional magnetohydrodynamic generalized and sodium alginate-based iron oxide Fe3O4- SA nanofluid flows past a spinning disk are investigated in this article. Furthermore, the Brownian motion and thermophoresis phenomena, and Arrhenius activation energy are taken into account. The obtained equations are altered from partial differential equations into ordinary differential equations with the help of reasonable similarity transformations. The transformed system is solved thereafter semi-analytically by the homotopy analysis method. The convergence area of the applied technique is displayed with the help of figures and tables. Here, we have found that the variation in sodium alginate-based iron oxide nanofluid due to film width is greater as compared to generalized nanofluid. The greater magnetic parameter has reduced the velocity profiles. Also, the generalized nanofluid has gained extraordinary velocity as compared to Fe3O4- SA nanofluid. On the other hand, the greater thermophoresis parameter has augmented the temperature profile while the opposing impact is observed for the concentration profile. Additionally, the generalized nanofluid has gained the greater variation in temperature profile as compared to Fe3O4- SA nano fluid, while no difference is found for concentration profile. The augmented absorption parameter, irradiance parameter, and thermal Biot number have amplified the temperature profile. In addition, the temperature profile of the generalized nanofluid increases significantly as compared to Fe3O4- SA nanofluid.

Automated summary

This article investigates the impact of solar radiation on nanofluid heat transfer, discovering the influence of different parameters on velocity, temperature, and concentration profiles, while analyzing the differences between various nanofluids.