Design and development of a low-cost storage system for improving shelf life of perishable agricultural produce

This study presents the design and development of a low-cost cold storage system aimed at reducing post-harvest losses and improving the shelf life of perishable farm produce, particularly for smallholder farmers in resource-constrained settings. The system was developed using a combination of engineering design calculations, detailed design drawings, and instrumentation for effective monitoring and control of internal storage conditions. Key design considerations included thermal insulation, energy efficiency, cost-effectiveness, and ease of construction using locally available materials. The instrumentation system integrated sensors for temperature and humidity monitoring, ensuring that optimal storage conditions are maintained. Powered by electricity, the cold storage unit demonstrated reliable performance in maintaining the required temperature range for preserving fruits and vegetables. The outcome of this work highlights the potential of affordable, locally adaptable cold storage solutions in enhancing food preservation, reducing losses, and supporting food security in rural agricultural communities.