ABSTRACT:

The cold storage systems are important for keeping perishable products like fruits, vegetables, dairy items, meat fresh and safe for a longer time. To achieve this, it is necessary to maintain uniform temperature and proper air circulation inside the storage chamber. In this study, a Computational Fluid Dynamics (CFD) analysis is carried out to understand the airflow pattern, temperature distribution, and the performance of different air-conditioning (AC) arrangements in a cold storage room. The CFD model includes both steady-state and transient conditions and considers important factors such as inlet air velocity, evaporator cooling capacity, heat load from stored products, and the insulation of the chamber. Different AC configurations, including changes in diffuser placement, airflow direction, and evaporator location, are tested to see how they affect temperature uniformity. The results show that AC arrangement plays a major role in reducing hot spots and improving overall cooling efficiency. The optimized setup provides better air mixing and more uniform temperature throughout the chamber. This study helps in understanding how CFD can be used to design energy-efficient and effective cold storage systems, and supports better engineering decisions for improving refrigeration performance