Simulation of integration of photovoltaic solar system with storage unit incorporating mixture of paraffin and nanoparticles

Abstract

In this study, we conducted a simulation of the cooling process for a silicon layer within a Photovoltaic (PV) system, integrating a paraffin layer. To augment the cooling rate and expedite the melting process, we introduced nanoparticles into the paraffin (specifically, RT28HC). The dynamic nature of the process was accurately modeled using an implicit method. To further enhance the melting rate, the container was equipped with fins. The incorporation of a Phase Change Material (PCM) like paraffin with PV technology represents a novel approach in this research. This combination not only improves the cooling efficiency but also addresses the issue of expedited melting, offering a significant advancement in the field. By effectively utilizing the latent heat features of the paraffin, we can enhance the overall performance and reliability of PV systems, potentially leading to more efficient energy conversion and utilization. The equations were explained using FVM, accounting for the positioning of the hot wall. Gravity was omitted from the model, and a uniform approximation was applied for mixture characteristics. The introduction of fins led to a notable increase in the melting rate by approximately 42.9 %. Additionally, the incorporation of nano-powders resulted in a reduction of melting time by about 6.27 % and 4.39 % in scenarios both with and without fins, respectively. These outcomes signify that the presence of fins and the inclusion of nano-powders significantly influence the charging process. Fins enrich the rate of melting, while the adding of nano-powders accelerates the overall melting time. This research highlights the potential benefits of utilizing these enhancements in practical applications, potentially leading to more efficient and effective melting processes.