Fuel Cell Humidifiers

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PX1_smallWhat is a Fuel Cell Humidifier?

Px1-32 (250 Watt) Humidifier provides heat and humidity to the incoming oxidant or hydrogen fuel stream of fuel cells and are critical to overall system performance and reliability. Without humidification, the fuel cell membrane becomes too dry and reduces the proton transport in the fuel cell stack and decreases the oxygen reduction reaction at the cathode – resulting in poor fuel cell function or even failure.

Many existing Fuel Cell Humidifiers are one of the most expensive components in a fuel cell system.

How does the dPoint humidifier work?

dPoint applies its patented planar membrane-based technology to humidify and heat the fuel streams going to the fuel cell, by directing the incoming dry gas across one side of a water permeable flat sheet membrane and flowing the hot humidified air stream from the fuel cell exhaust across the other side of the membrane. The membrane transfers the heat and water vapour from the wet stream to the dry stream while preventing the oxygen from crossing over.

Cost Effective Design & Manufacturing

Through the use of low-cost materials, advanced polymer-based membranes and a streamlined manufacturing process, dPoint Technologies provides a superior solution for fuel cell humidification.

Low Cost – high volume manufacturing using injection moulded components and inexpensive materials
Compact – optimized exchanger design
Low Maintenance – no moving parts and fewer components
Proprietary Advantage – two patents granted and one in application
Ease of Serviceability – membrane pleat pack can be easily changed

Outstanding Performance

With over 1000 systems installed with 70 customers in 16 different countries, dPoint Fuel Cell Humidifiers are reliable and proven to supply excellent humidity exchange from the use of its revolutionary polymer membrane and counter flow design.

Low-Pressure Drop – open channel design using Computation Fluid Dynamics (CFD) modelling
Excellent RH Performance – membrane provides high water permeability
No Parasitic Losses – humidifier is a passive device, recycling heat and humidity from exhaust

Robust & Versatile

The patented polymer membrane and flexible design of the dPoint Fuel Cell Humidifier allows the system to endure extreme temperatures and varying pressure conditions.

Flexibility – use of alternative membranes based on lifetime and cost requirements
Hydrogen Safe – due to low H2 and Air cross-over humidifier can be used on both cathode and anode side
Temperature and Pressure Tolerant – able to handle -30 to 80°C in varying pressure systems

Manufacturing & Quality Control

Capacity to produce up to 12,000 humidifiers per year
Test lab with single cell membrane, full humidifier and longevity testing and analysis capability
Quality Management System implemented
Computational Fluid Dynamics (CFD) & Finite Element Analysis (FEA) modeling skills

For more information about dPoint Fuel Cell Humidifiers, please contact us.