Japan develops the use of automobile exhaust power generation technology

The Japan Industrial Technology Research Institute, in collaboration with auto parts manufacturer ATSUMITEC, has developed an innovative technology that harnesses energy from motorcycle and vehicle exhaust gases. This breakthrough utilizes fuel cells and thermoelectric conversion elements to transform unburned components and high-temperature exhaust waste into usable electricity. The companies aim to accelerate the adoption of this technology by 2015. Researchers have integrated solid oxide fuel cells (SOFCs) and thermoelectric generators into engine exhaust systems, capturing energy from exhaust gases that can reach nearly 500°C. Testing has demonstrated that the system can recover approximately 2.5% of the total exhaust energy from a 400 cc engine—equivalent to the output of a 400-watt generator. This represents a meaningful step toward improving energy efficiency in transportation. Looking ahead, the research team plans to focus on reducing costs and enhancing the durability of the system for long-term use. According to reports, the technology is not limited to motorcycles and cars—it could also be applied in industrial settings, such as factories that release large amounts of waste heat through exhaust systems. This broad applicability makes it a promising solution for maximizing the utilization of residual heat, contributing to more sustainable energy practices.

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