Experimental investigation of electricity generation from motorcycle coolant waste heat using thermoelectric modules
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Abstract
This research investigated the performance of electricity generation system using a thermoelectric generator (TEG) that directly converted motorcycle engine coolant waste heat into electricity under varying operating conditions. The experimental setup utilized a Honda Rebel 300 motorcycle with 5 TEG modules, which was installed with a prototype system connecting to the engine's cooling circuit. Experiments were conducted both in laboratory tests using a dynamometer, and in real-world road tests at vehicle speeds of 40, 60, and 80km/h under loads of 200 and 300N. The results demonstrated the successful generation of electricity by the TEG modules, with a maximum power output of approximately 0.82W. The average system efficiency ranged from 0.526% to 0.672%, correlating with the temperature difference across the hot and cold sides of the TEG modules. This study highlights the potential for motorcycle coolant waste heat recovery and its subsequent utilization
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