부산대학교 도서관

The COVID-19 pandemic that has ravaged the world since December 2019 caused disruptions in the engineering education sector as students in African universities were unable to learn virtually. From two recent multi-language, multi-cultural pan-African online surveys to assess the impact on students, over 6,000 responses showed the twin constraints of irregular electric power supply and poor internet connectivity to effectively participate in virtual learning. This project is aimed at developing an affordable and reliable power and communication device for continuous online learning for engineering students, showcasing the strength in Africa's diversity through a collaborative, multinational, multicultural, multi-lingual and gender-sensitive platform to solve this identified global African Engineering Education challenge. A collapsible 100-watt solar photovoltaic module charging a set of lithium batteries via the charge controller was used to power a laptop computer, a mobile phone and a 5-watts bulb simultaneously through a Direct Current/Direct Current (DC/DC) converter. An embedded modem in the device provided the wireless network for internet connectivity. The initial prototypes produced weighed less than 7 kg, and preliminary performance tests showed that the gadget was able to charge up a laptop and two smartphones totaling 45.5WH from 0% to 100% while the remaining backpack state of charge remains 12.8V at 88% (that is 12% depth of discharge). The power supply and communication device for continuous online learning for African engineering students will not only bring engineering solution collaboration among hundreds of engineers, technologists, and technicians from the entire African continent, but will also boost entrepreneurial skills for many African engineering practitioners when fully commercialised.