While a bad thing for methanol ICE, water is actually required for reactions to take place in a DMFC.Another reason you don't see to many methanol vehicles, methanol pulls moisture from the air when the container housing it is not completely sealed.
Fuel + water dont mix.
conjunction with ViaSpace for the Army. However, earlier prototypes, targeted primarily at portable electronics market, had power output of 20 Watts. The new models supposedly:
This power output level seems to be targeted to a specific application (military). Note, for example, that a common military rechargeable battery BB 2590 has 15 W of power. It also appears that DoD is upping the ante. In 2007 Wearable Power Prize competition the devices had to satisfy the following power/energy requirements properties.generate 54% more power than existing models, and have enhanced durability, up to eight times that of previous models.
The winning team's (DuPont/SFC Smart Fuel Cell) DMFC was slightly heavier (3.7 kg) than Samsung's (3.5 kg). Can we assume that Samsung's unit is also capable of delivering 200 W if for a short period of time? If so, what prevents the operation at that power output level for longer periods of time?The system will be connected through the single power outlet to standard electronic loads executing a load profile which will be identical for all systems. This load profile will dissipate 1840 W-hr over a 92 hour period. The load profile will include periods that are less than 20W and periods with peak loads that range up to 200W for 5 min. maximum duration. The maximum possible load encountered is 200W for 5 minutes