What is a Humidifier?
Water management is one of the biggest challenges of a PEM fuel cell system. Maintaining sufficient water content of the polymer electrolyte membrane is vital for efficient operation and also extending the lifecyle of the fuel cell. Humidification of the cathode side is one way of maintaining this membrane water content.
The KNIPPING Humidifier is a passive humidifier meaning it does not add to the parasitic loses of the fuel cell system. It uses the water created in the fuel cell stack by the electro-chemical reaction that occurs. This water then exits the fuel cell in vapor and/or droplet form with the exhaust air. It is then led into the humidifier along with the dry inlet air where the two air streams are separated with a state-of-the-art polymer membrane. This membrane allows transfer of water due to the gradient but does not allow any oxygen or nitrogen to transfer.
KNIPPING Humidifier?
KNIPPING NEW MOBILITY has developed a compact, sustainable and practical solution that lowers total cost of ownership over the long-term.
Our industry-leading fuel cell Humidifier solution enables large-scale hydrogen fuel cell commercialization throughout a wide spectrum of applications:
Heavy Duty Vehicles
Public Transport
Rail Transport
Marine/Ferries
Automotive
Off Highway
Aviation
Stationary
Main benefits of the
KNIPPING Humidifier
- High water transfer
- Low pressure loss
- Polymer distribution plates in counter-flow configuration
- Flexible design options
- Exceptional performance
- Product reliability
- Lower total cost of Ownership
Basic Design
The KNIPPING Humidifier consists of polymer distribution plates which are separated by a polymer membrane and seal. These plates are then stacked according to the required water transfer and pressure loss.
KNIPPING Humidifier Variants
One of the unique design features of the KNIPPING Humidifier is the possibility to cover a large range of fuel cell power outputs. Based on the customer requirements, such as:
- Performance
- Packaging requirements
Application Example
Distribution plate footprint.
| Off-the-shelf Sizes | Customer Specific | ||
| Size: Small
|
Size: Medium
|
Size: Large
|
KNIPPING is always open to hear about different plate footprints required. Please get in touch with us if our off-the-shelf sizes do not fit your requirements. |
| Dimensions: approx. 210 mm x 120 mm; current development status |
Dimensions: TBD | Dimensions: TBD | |
Number of distribution plates and membranes.
Medium connection ports: Location in Humidifier and type of connection port.
| I/O Configurations | I/O Adapters |
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Get in touch with us
Dr. Martin Lenz
Director KNIPPING NEW MOBILITY
Email: new.mobility@knipping.de
Phone: +49 173 5271169
KNIPPING KUNSTSTOFFTECHNIK GESSMANN GmbH
Daimerstraße 21
D-74211 Leingarten
Germany
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