The team developed a smart cooling system using: Peltier modules for active cooling Heat sinks + fans to manage thermal efficiency Temperature sensors for monitoring A closed-loop control to regulate the internal environment of the vaccine box Custom-designed casing using accessible fabrication techniques 

Idea: A temperature control system embedded within an ice box that continuously monitors and regulates the internal temperature, ensuring vaccines are stored within the optimal range at all times. Inspired by WHO vaccine transport protocols, this solution bridges the gap in real-time monitoring. 🔗 WHO Guide Reference Sustainable Development Goal (SDG) in Focus: SDG 3: Good Health and Well-being Constraints Faced: Power limitation: The chosen Peltier cooling system requires significant power that small batteries couldn’t provide. Peltier inefficiency: These components generate excess heat and require additional thermal management. Solution Brainstorming Journey: Coolant-trigger system – Considered using cold water or ice-triggered mechanisms but lacked temperature control. Peltier-based system – Selected for its active cooling capability. Heat sinks and fans were added to dissipate excess heat from the Peltiers.