A Direct Methanol Fuel Cell System to Power a Humanoid Robot

Title
A Direct Methanol Fuel Cell System to Power a Humanoid Robot
Authors
조한익하태정황상엽김종호채승훈조재형Joghee Prabhuram김수길임태훈조백규문상흡하흥용
Keywords
direct methanol fuel cell; robot; stack; fuel cell system; methanol control system; load sharing ratio; efficiency; Fuel cell/battery hybrid system
Issue Date
2010-01
Publisher
Journal of power sources
Citation
VOL 195, NO 1, 293-298
Abstract
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%.
URI
http://pubs.kist.re.kr/handle/201004/34989
ISSN
0378-7753
Appears in Collections:
KIST Publication > Article
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