Ultralight PEM Fuel Cell - 250W

Brand: HES Energy Systems
Product Code: 3271501

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AEROSTAKS are special HES designed fuel cells that are up to 10 times lighter and smaller than other fuel cells.  AEROSTAK fuel cells are typically used in specialty applications where weight is a critical factor.  They are available in three standard ratings and specifications, but can be modified at additional costs according to other nominal and peak power, or voltage requirements.
How did HES make the AEROSTAKS lighter?
HES developed proprietary cellular level water management technologies eliminating cumbersome and typically heavy external water management systems which are needed in conventional PEM fuel cell systems.  This, combined with the use of high performance and lightweight materials, makes the AEROSTAK special assemblies the most power dense PEM fuel cell stacks in the world, reaching power densities of over 1W per gram.
Based on ambient temperature and altitude below 3000 meters. Increased altitude changes the power curve due to the reduced oxygen partial pressure.
Hydrogen consumption is proportional to the output net current. At rated power, the maximum hydrogen consumption is less than 7 slp


✔ Control Electronics
✔ Hybrid battery card (charging)         
✔ Integrated blower and casing
✔ Low pressure protection
Typical lead time of 6 to 8 weeks expected.


Fuel Cell Properties
Number of Cells 37
Rated Power 250W (300W Peak)
Starting Temperature 1 - 35°C
Storage Temperature 28 - 30°C
Reactants Hydrogen & Air
Ambient Temperature 0 - 35°C
Hydrogen Pressure 0.5 - 0.7 Bar
Humidification Self-humidified
Cooling Air (integrated fan)
Stack Weight (with Fan & Casing) 730 g
Hydrogen Flow Rate at Max Output < 3.8 L/min
Stack Size 110 X 120 X 124 mm
Hydrogen Purity Requirement 99.999% (dry H2)
Start up time < 30s (ambient temperature)
External Power Supply 6S

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