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Fuel Cell System for Two-Wheeled Vehicles
Technical Paper
2005-32-0077
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English
Abstract
Direct methanol fuel cell (DMFC) system is a compact lightweight system as it eliminates the need of a complex reformer unit. Moreover, since the methanol-water-solution used as fuel does not correspond to a flammable substance, it is thought that convenience is high.
We have developed the hybrid scooter integrated with the DMFC system and the Li-ion rechargeable batteries, and optimized various parameters related to the performance and the efficiency. The power output of the DMFC system was adjusted to the value necessary for a constant ground run in 30 km/h of a commercial small electric scooter. All the system components had to be constituted in the limited space and under the restricted weight conditions.
The net-power-output of the system was examined under various air flow rate, fuel flow rate and methanol concentration conditions. We confirmed that the maximum net-output of the system was obtained at a condition different from one at the maximum gross-output conditions, because the increase of the gross-output had been accompanied by the increase of the auxiliary power consumptions. It was clearly found that the trade-off relation of the gross-output increase and the auxiliary power consumption increases must be considered to set up the optimized operating condition of the system.
Authors
Topic
Citation
MURAMATSU, Y., OHISHI, M., and ADACHI, S., "Fuel Cell System for Two-Wheeled Vehicles," SAE Technical Paper 2005-32-0077, 2005.Also In
References
- Adachi Technical Review 37 2004
- Adachi Fuel Cells 3 3 52 2004
- Kotake Watanabe Takagi The Society of Automotive Engineers of Japan, Proceeding of the World Congress 43-04 13 2004