Products
Liquid cooled PEM fuel cell stack. 1kW rated output. Active coolant loop, wide operating temperature range including sub-zero ambient.
Lead time: 4–8 weeks
What is a Liquid Cooled PEM Fuel Cell?
A liquid cooled PEM fuel cell stack generates electricity through the electrochemical reaction of hydrogen and oxygen across a proton exchange membrane — the same fundamental process as air cooled stacks, but with an active liquid cooling circuit maintaining stack temperature under higher and sustained power demands.
In a liquid cooled stack, coolant channels are integrated into or between the bipolar plates. A pump circulates coolant — typically deionised water or a water-glycol mixture — through the stack and an external radiator or heat exchanger. This active thermal management maintains the stack within its optimal operating temperature range regardless of ambient conditions or load profile, enabling sustained operation at high power densities that would cause thermal runaway in a passively cooled design.
The HWFC series operates across a wide temperature range — including sub-zero ambient conditions down to -15°C — making it suitable for outdoor installations, vehicle applications and environments where ambient temperature control is not possible. At 1kW to 5kW rated output, HWFC stacks are used in light hydrogen vehicles, stationary backup power systems, marine applications and integrated power modules where continuous duty at rated power is required. All HWFC stacks require hydrogen at >99.99% purity and ambient air at the cathode — no compressed oxygen supply is needed.