A Direct Methanol Fuel Cell System to Power a Humanoid Robot
- A Direct Methanol Fuel Cell System to Power a Humanoid Robot
- 조한익; 하태정; 황상엽; 김종호; 채승훈; 조재형; Joghee Prabhuram; 김수길; 임태훈; 조백규; 문상흡; 하흥용
- direct methanol fuel cell; robot; stack; fuel cell system; methanol control system; load sharing ratio; efficiency; Fuel cell/battery hybrid system
- Issue Date
- Journal of power sources
- VOL 195, NO 1, 293-298
- In this study, a direct methanol fuel cell (DMFC) system, which is the first of its kind, has been developed to power a humanoid robot. The DMFC system consists of a stack, a balance of plant (BOP), a power management unit (PMU), and a back-up battery. The stack has 42 unit cells and is able to produce about 400 W at 19.3 V. The robot is 125 cm tall, weighs 56 kg, and consumes 210 W during normal operation. The robot is integrated with the DMFC system that powers the robot in a stable manner for more than 2 h. The power consumption by the robot during various motions is studied, and load sharing between the fuel cell and the back-up battery is also observed. The loss of methanol feed due to crossover and evaporation amounts to 32.0% and the efficiency of the DMFC system in terms of net electric power is 22.0%.
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