Enhancing Cold Chain Logistics: Key Factors Influencing Temperature Retention in Portable Cold Storage Boxes

Abstract

Cold chain logistics play a crucial role in transporting temperature-sensitive goods such as vaccines, pharmaceuticals, and fresh food products. One of the key components in this process is portable cold storage boxes, which help maintain stable temperatures throughout transportation. This research aims to investigate the factors influencing temperature retention efficiency in portable cold storage boxes and develop a predictive model for temperature retention duration using Design of Experiments (DOE). The experiment was conducted using Factorial Design and Response Surface Methodology (RSM) to identify significant factors affecting temperature retention time. The results indicate that the type of cold storage box (B-Box), the quantity and type of Phase Change Materials (PCMs), and the structure of the top wall insulation are the most critical factors influencing cooling performance. Additionally, findings show that optimizing PCM placement and quantity can significantly extend temperature retention time. From this study, a predictive model was developed to forecast the duration of temperature retention in portable cold storage boxes. This model can be applied to improve cold chain logistics efficiency, minimize product losses, and reduce operational costs in temperature-controlled transportation.