Membrane Humidifiers for PEM Fuel Cells: How They Work

At a glance. Tech Inc. Hollow Fibre Membrane Humidifiers move water from the wet stack exhaust to the dry inlet air through water-selective fibres.

How it works

• Dry air flows inside the fibres.

• Wet exhaust flows around them.

• Water passes through the membrane; gases stay apart.

Sizing

Match air flow, stack power, pressure and target dew point. Larger stacks need larger fibre area.

Frequently asked questions

Do they need power? No.

Send your stack data to mail@techincresearch.com.