Increment of solidification rate due to radiation and conduction mechanism in existence of porous container filled with nanomaterial

Abstract

In current study, Galerkin techniques have been utilized to model the freezing behavior of a cold storage unit. The system features fins and porous foam, enhancing its efficiency in solidifying liquids. Additionally, hybrid nanoparticles have been introduced into the water to improve its conductivity. The energy equation has been augmented with a new term for radiation mode, alongside the source term for freezing. With the goal of determining the amounts of scalars at each node, the model consists of two equations. Mesh adaptation techniques have been employed to accommodate the dynamic nature of the process. Validation against previous data demonstrates good agreement, bolstering the reliability of the simulation. The introduction of porous foam into the domain results in a significant enhancement of the freezing rate, with an increase of about 90.75 %. Furthermore, in scenarios without porous foam, the mixing of nano-powders and a surge in the radiation factor contribute to notable reductions in completion time, with decreases of approximately 12.52 % and 8 %, respectively. By combining all these techniques, a considerable reduction in solidification time can be achieved, amounting to around 91.46 %. This highlights the importance of a comprehensive approach in improving solidification efficiency. By improving the efficiency of cold storage units through these advanced techniques, this research contributes to the sustainable use of natural resources, highlighting the potential for reducing energy consumption and minimizing environmental impact.

Keywords

• Permeable cold storage
• Numerical method
• Hybrid nano-sized additives
• Sustainability of natural resources
• Mesh adaption
• Radiation effect