Recent research published in the Journal of Energy in Southern Africa has explored an innovative approach to harnessing solar power through thermoelectric generators (TEGs) integrated with inverted box rib (IBR) sheeting. This study, led by Momina Malik from the Department of Mechanical Engineering at Durban University of Technology, aims to address the growing global demand for clean and renewable energy sources.
The research focused on a TEG prototype that utilized two pieces of roof sheeting, where one side was exposed to light while the other remained shaded. By examining the effects of two key variables— the color of the IBR sheeting and the electrical arrangement of the Peltier tiles—the study aimed to optimize the power output generated by these systems.
One of the standout findings of the research was that black-coated IBR sheets produced the highest maximum power output (Pmax) when tested. Additionally, the configuration of the TEGs in series yielded the best results when positioned closest to the light source. “The conclusion from the experiment is that TEGs are a potential method of harvesting solar energy on IBR sheeting, specifically in a vertical position,” Malik noted.
This research opens up significant commercial opportunities across various sectors. For construction and roofing industries, integrating TEGs with IBR sheeting could lead to the development of energy-generating roofs, providing a dual function of shelter and power generation. This could make buildings more self-sufficient in energy production, potentially lowering utility costs and promoting sustainability.
Moreover, the findings suggest that further exploration into different orientations and geographical applications could enhance the scalability of TEG technology. As the world increasingly shifts towards renewable energy solutions, the ability to harvest solar energy effectively could position companies that adopt this technology at the forefront of the energy transition.
In summary, the work by Malik and her team highlights a promising avenue for solar energy harvesting that could have lasting impacts on both energy efficiency and sustainability in the construction sector. With ongoing research and development, TEGs integrated with IBR sheeting could play a crucial role in the future of renewable energy infrastructure.
