Water-cooled fuel cell power pack hydrogen fuel-cell power system

The Water-cooled fuel cell power pack from Doosan Mobility Innovation is a hydrogen fuel-cell power system with liquid cooling, intended for heavy-duty mobility. The maker describes it as a water-cooled fuel cell power-pack for high-load work in industrial vehicles, with high output as a design goal.

A fuel cell power pack converts hydrogen into electrical power without exhaust emissions at the point of use, and it produces less noise than a combustion engine. Liquid cooling removes the heat of the stack through a coolant circuit, which is the usual choice for continuous high output where air cooling would be limiting. Doosan also lists air-cooled power packs in its range, so the water-cooled version is the one selected for higher-load duty.

The maker presents three application groups. For construction machinery, which needs continuous high output, the pack offers short refuelling time to keep working hours long. For long-distance buses, it offers long range and short refuelling time, with no engine noise or idling exhaust emissions in urban areas. For agricultural machinery, it provides stable operation in long, high-load work with reduced vibration and noise, which lowers operator fatigue.

For integration, the pack is a system-level component. It has to be combined with hydrogen storage and the balance-of-plant equipment of the host machine, and the maker supplies hydrogen tanks and refuelling equipment within the same product portfolio. The cooling loop, the electrical connection to the vehicle drive system and the hydrogen supply are the interfaces an integrator plans around.

Doosan Mobility Innovation also builds hydrogen-powered multicopter and VTOL drones, and lists hydrogen tanks, refuelling equipment and stationary fuel cells in the same catalogue, so an integrator can source several parts of a hydrogen installation from one maker.