Design and prototype of a solar powered vaccine kit for offgrid communities: focus on energy conservation.

Abstract

The goal of this project was to design and prototype a solar-powered vaccine carrier kit to address the critical challenge of maintaining the cold chain for vaccines in remote and off-grid communities. Access to reliable vaccine storage and transportation remains a critical challenge in remote and underserved communities, where electricity shortages hinder proper cold chain management. The project was aimed at developing a self-contained kit incorporating a solar panel, battery, and a temperature-controlled vaccine storage unit. The kit was to be designed to maintain the required cold chain temperature for vaccines even in remote locations with limited access to electricity. Through a combination of design, simulation, and field testing, this project evaluated the performance and reliability of the solar-powered vaccine kit, aiming to develop a cost-effective and sustainable solution for enhancing immunization coverage in underserved communities. The kit was designed for durability and ease of use, making it suitable for healthcare workers operating in off-grid locations. The objectives included creating a functional prototype of a solar powered vaccine kit, determining the energy conservation requirements for various components of the system, designing and sizing the essential components and integrating the solar and battery system with other essential components of the vaccine kit. The methodology involved requirement analysis, designing and sizing of components and system integration. The system was expected to be able to handle the load requirements and maintain the desired range of temperature for over 5 hours, monitor and give real-time status updates of the temperatures in the kit and energy conservation which included automated switching off/on and self-closing door. The project aligned with Sustainable Development Goals 3 (Good Health and Well-Being) and 7 (Affordable and Clean Energy).