Thermal analysis characterisation of solar- powered ship using Oldroyd hybrid nanofluids in parabolic trough solar collector: An optimal thermal application

Abstract

The mathematical modeling of hybrid nano- fluid flow and heat transfer with entropy generation toward parabolic trough surface collector (PTSC) inside the solar-powered ship (SPS) is performed. The mathe- matical model used non-Newtonian Oldroyd-B model amidst a constant inclined magnetic field influence is being considered. The mathematical model is then reduced by adopting appropriate similarity transformation into a higher-order nonlinear differential equations system. The reduced model is computed using the well-known tech- nique called the Keller Box scheme. Physical parameters effectiveness, for instance, thermal radiation, viscous dissi- pation, hybrid nanoparticles, and Joule heating, is displayed in graphs. The silver-ethylene glycol (Ag-EG) characteristic performance outperformed the silver-magnetite-ethylene glycol (Ag-Fe 3 O 4 /EG). The maximum efficiency of Ag-EG is about 26.3%, while the minimum is at least 5.6%. Keywords: PTSC, solar-powered ship, angle of inclina- tion, Oldroyd B-hybrid nanofluid, entropy formation, MHD, Keller box method