Nawaf, M.Y.Akroot, A.Wahhab, H.A.A.2024-09-292024-09-2920231823-4690https://hdl.handle.net/20.500.14619/10193Increasing the contact area between the working fluid and solid surface is proven to be a successful technique for enhanced heat transfer. This paper presents computational simulation results of a closed active solar water heating system. The system is a novel solar water heating as it is compacted with a heat transfer unit filled with an open cell foam porous media for increased heat transfer area and molten salts of 60% sodium nitrate and 40% potassium nitrate as phase change material. Water is circulated between the collector and a storage tank. The numerical simulation and analysis were performed using ANSYS FLUENT 17.0, assuming a steady, incompressible, and 3D state. The system performance was tested using two flow rates of the circulating water of 2.5 and 3.5 l/min. Numerical results showed that the temperature difference between the inlet and outlet decreases with increasing water flow rates through the solar water heater. The temperature difference decreased by 11.5% when the flow rate increased from 2.5 to 3.5 l /min. Also, the results showed a good prediction of the real flow behaviour inside the thermal energy storage. Also, the evolution of the numerical simulation accuracy for porous media solar collector analysis is still a topic of future research. © 2023 Taylor's University. All rights reserved.eninfo:eu-repo/semantics/closedAccessopen-flow material foamporous mediasolar collector simulationthermal energy storageArticle2-s2.0-85184596454130Q311718